撤销 删除yos中的JSONOBject,请注意引入core包的加载顺序

src/override/com/alibaba/fastjson/JSONObject.java

@@ -0,0 +1,845 @@
+/*
+ * Copyright 1999-2017 Alibaba Group.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.fastjson;
+
+import com.alibaba.fastjson.annotation.JSONField;
+import com.alibaba.fastjson.parser.Feature;
+import com.alibaba.fastjson.parser.ParserConfig;
+import com.alibaba.fastjson.util.TypeUtils;
+import common.BaseClass;
+import common.YosException;
+import common.data.Row;
+import common.data.Rows;
+import common.data.db.DBConnect;
+
+import java.io.*;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Type;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+import static com.alibaba.fastjson.util.TypeUtils.*;
+
+/**
+ * @author wenshao[szujobs@hotmail.com]
+ */
+public class JSONObject extends JSON implements Map<String, Object>, Cloneable, Serializable, InvocationHandler {
+
+    private static final long serialVersionUID = 1L;
+    private static final int DEFAULT_INITIAL_CAPACITY = 16;
+
+    private final Map<String, Object> map;
+
+    public JSONObject() {
+        this(DEFAULT_INITIAL_CAPACITY, false);
+    }
+
+    public JSONObject(Map<String, Object> map) {
+        if (map == null) {
+            throw new IllegalArgumentException("map is null.");
+        }
+        this.map = map;
+    }
+
+    public JSONObject(boolean ordered) {
+        this(DEFAULT_INITIAL_CAPACITY, ordered);
+    }
+
+    public JSONObject(int initialCapacity) {
+        this(initialCapacity, false);
+    }
+
+    public JSONObject(int initialCapacity, boolean ordered) {
+        if (ordered) {
+            map = new LinkedHashMap<String, Object>(initialCapacity);
+        } else {
+            map = new HashMap<String, Object>(initialCapacity);
+        }
+    }
+
+    public int size() {
+        return map.size();
+    }
+
+    public boolean isEmpty() {
+        return map.isEmpty();
+    }
+
+    public boolean containsKey(Object key) {
+        return map.containsKey(key);
+    }
+
+    public boolean containsValue(Object value) {
+        return map.containsValue(value);
+    }
+
+    public Object get(Object key) {
+        Object val = map.get(key);
+
+        if (val == null && key instanceof Number) {
+            val = map.get(key.toString());
+        }
+
+        return val;
+    }
+
+    public JSONObject getJSONObject(String key) throws YosException {
+        fieldContainsCheck(key, "JSONObject");
+        Object value = map.get(key);
+
+        if (value instanceof JSONObject) {
+            return (JSONObject) value;
+        }
+
+        if (value instanceof Map) {
+            return new JSONObject((Map) value);
+        }
+
+        if (value instanceof String) {
+            return JSON.parseObject((String) value);
+        }
+
+        return (JSONObject) toJSON(value);
+    }
+
+    public JSONArray getJSONArray(String key) throws YosException {
+        fieldContainsCheck(key, "JSONArray");
+        Object value = map.get(key);
+
+        if (value instanceof JSONArray) {
+            return (JSONArray) value;
+        }
+
+        if (value instanceof List) {
+            return new JSONArray((List) value);
+        }
+
+        if (value instanceof String) {
+            return (JSONArray) JSON.parse((String) value);
+        }
+
+        return (JSONArray) toJSON(value);
+    }
+
+    public <T> T getObject(String key, Class<T> clazz) throws YosException {
+        fieldContainsCheck(key, clazz.getSimpleName());
+        Object obj = map.get(key);
+        return TypeUtils.castToJavaBean(obj, clazz);
+    }
+
+    public <T> T getObject(String key, Type type) throws YosException {
+        fieldContainsCheck(key, type.getTypeName());
+        Object obj = map.get(key);
+        return TypeUtils.cast(obj, type, ParserConfig.getGlobalInstance());
+    }
+
+    public <T> T getObject(String key, TypeReference typeReference) throws YosException {
+        fieldContainsCheck(key, typeReference.getType().getTypeName());
+        Object obj = map.get(key);
+        if (typeReference == null) {
+            return (T) obj;
+        }
+        return TypeUtils.cast(obj, typeReference.getType(), ParserConfig.getGlobalInstance());
+    }
+
+    public Boolean getBoolean(String key) throws YosException {
+        fieldContainsCheck(key, "Boolean");
+        Object value = get(key);
+
+        if (value == null) {
+            return null;
+        }
+
+        return castToBoolean(value);
+    }
+
+    public byte[] getBytes(String key) throws YosException {
+        fieldContainsCheck(key, "Bytes");
+        Object value = get(key);
+
+        if (value == null) {
+            return null;
+        }
+
+        return castToBytes(value);
+    }
+
+    public boolean getBooleanValue(String key) {
+        Object value = get(key);
+
+        Boolean booleanVal = castToBoolean(value);
+        if (booleanVal == null) {
+            return false;
+        }
+
+        return booleanVal.booleanValue();
+    }
+
+    public Byte getByte(String key) throws YosException {
+        fieldContainsCheck(key, "Bytes");
+        Object value = get(key);
+
+        return castToByte(value);
+    }
+
+    public byte getByteValue(String key) {
+        Object value = get(key);
+
+        Byte byteVal = castToByte(value);
+        if (byteVal == null) {
+            return 0;
+        }
+
+        return byteVal.byteValue();
+    }
+
+    public Short getShort(String key) throws YosException {
+        fieldContainsCheck(key, "Short");
+        Object value = get(key);
+
+        return castToShort(value);
+    }
+
+    public short getShortValue(String key) {
+        Object value = get(key);
+
+        Short shortVal = castToShort(value);
+        if (shortVal == null) {
+            return 0;
+        }
+
+        return shortVal.shortValue();
+    }
+
+    public Integer getInteger(String key) throws YosException {
+        fieldContainsCheck(key, "Integer");
+        Object value = get(key);
+
+        return castToInt(value);
+    }
+
+    public int getIntValue(String key) {
+        Object value = get(key);
+
+        Integer intVal = castToInt(value);
+        if (intVal == null) {
+            return 0;
+        }
+
+        return intVal.intValue();
+    }
+
+    public int getIntValue(String key, int defaultvalue) {
+        Object value = get(key);
+
+        Integer intVal = castToInt(value);
+        if (intVal == null) {
+            return defaultvalue;
+        }
+
+        return intVal.intValue();
+    }
+
+    public Long getLong(String key) throws YosException {
+        if (BaseClass.isTableUniqueColumnName(key)) {
+            return getLongValue(key, -1L);
+        } else {
+            fieldContainsCheck(key, "Long");
+            Object value = get(key);
+            return castToLong(value);
+        }
+    }
+
+    public long getLongValue(String key) {
+        Object value = get(key);
+
+        Long longVal = castToLong(value);
+        if (longVal == null) {
+            return 0L;
+        }
+
+        return longVal.longValue();
+    }
+
+    public long getLongValue(String key, Long defaultvalue) {
+        Object value = get(key);
+
+        Long longVal = castToLong(value);
+        if (longVal == null) {
+            return defaultvalue;
+        }
+
+        return longVal.longValue();
+    }
+
+    public Float getFloat(String key) throws YosException {
+        fieldContainsCheck(key, "Float");
+        Object value = get(key);
+
+        return castToFloat(value);
+    }
+
+    public float getFloatValue(String key) {
+        Object value = get(key);
+
+        Float floatValue = castToFloat(value);
+        if (floatValue == null) {
+            return 0F;
+        }
+
+        return floatValue.floatValue();
+    }
+
+    public Double getDouble(String key) throws YosException {
+        fieldContainsCheck(key, "Double");
+        Object value = get(key);
+
+        return castToDouble(value);
+    }
+
+    public double getDoubleValue(String key) {
+        Object value = get(key);
+
+        Double doubleValue = castToDouble(value);
+
+        if (doubleValue == null) {
+            return 0D;
+        }
+
+        return doubleValue.doubleValue();
+    }
+
+    public BigDecimal getBigDecimal(String key) throws YosException {
+        fieldContainsCheck(key, "BigDecimal");
+        Object value = get(key);
+
+        return castToBigDecimal(value);
+    }
+
+    public BigDecimal getBigDecimalValue(String key) throws YosException {
+
+        Object value = get(key);
+
+        if (value == null || value.equals("")) {
+            return castToBigDecimal(0);
+        }
+        fieldContainsCheck(key, "BigDecimal");
+        return castToBigDecimal(value);
+    }
+
+    public BigDecimal getBigDecimalValue(String key, int defaultvalue) throws YosException {
+
+        Object value = get(key);
+
+        if (value == null || value.equals("")) {
+            return castToBigDecimal(defaultvalue);
+        }
+        fieldContainsCheck(key, "BigDecimal");
+        return castToBigDecimal(value);
+    }
+
+    public BigInteger getBigInteger(String key) throws YosException {
+        fieldContainsCheck(key, "BigInteger");
+        Object value = get(key);
+
+        return castToBigInteger(value);
+    }
+
+    public String getStringValue(String key) {
+        return getStringValue(key, false);
+    }
+
+    public String getStringValue(String key, boolean Keepspecialcharacters, String defValue) {
+        Object value = get(key);
+        if (value == null || value.toString().isEmpty()) {
+            return defValue;
+        }
+        if (!Keepspecialcharacters) {
+            value = value.toString().replaceAll("([';])+|(--)+", "");//去除特殊字符，防止sql注入
+        } else {
+            value = value.toString().replace("'", "\\'");
+        }
+        return value.toString();
+    }
+
+    /**
+     * 验证是否为时间格式
+     *
+     * @param key
+     * @param pattern
+     * @param defValue
+     * @return
+     */
+    public String getStringValueForDate(String key, String pattern, String defValue) {
+        Object value = get(key);
+        if (value == null || value.toString().isEmpty()) {
+            return defValue;
+        }
+        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
+        try {
+            sdf.parse(value.toString());
+        } catch (ParseException e) {
+            e.printStackTrace();
+            return defValue;
+        }
+        return value.toString();
+    }
+
+    public String getStringValue(String key, boolean Keepspecialcharacters) {
+        Object value = get(key);
+        if (value == null) {
+            return "";
+        }
+        if (!Keepspecialcharacters) {
+            value = value.toString().replaceAll("([';])+|(--)+", "");//去除特殊字符，防止sql注入
+        } else {
+            value = value.toString().replace("'", "\\'");
+        }
+        return value.toString();
+    }
+
+    public String getString(String key) throws YosException {
+        return getString(key, false);
+    }
+
+    public String getString(String key, boolean Keepspecialcharacters) throws YosException {
+        fieldContainsCheck(key, "String");
+        Object value = get(key);
+        if (value == null) {
+            return null;
+        }
+        if (!Keepspecialcharacters) {
+            value = value.toString().replaceAll("([';])+|(--)+", "");//去除特殊字符，防止sql注入
+        } else {
+            value = value.toString().replace("'", "\\'");
+        }
+        return value.toString();
+    }
+
+    public static HashMap<String, HashMap<String, Integer>> table_field_length_Map = new HashMap<String, HashMap<String, Integer>>();
+
+    /**
+     * 获取String类型的值，并进行长度校验
+     *
+     * @param key
+     * @param table_fieldname 数据库表名.字段名
+     * @return
+     */
+    public String getString(String key, String table_fieldname) throws YosException {
+        return getString(key, table_fieldname, false);
+    }
+
+    public String getStringValue(String key, String table_fieldname) throws YosException {
+        Object value = get(key);
+        if (value == null) {
+            return "";
+        }
+        return getString(key, table_fieldname, false);
+    }
+
+    /**
+     * 获取String类型的值，并进行长度校验
+     *
+     * @param key
+     * @param table_fieldname 数据库表名.字段名,如果字段名和key值相同，则可省略字段名
+     * @return
+     */
+    public String getString(String key, String table_fieldname, boolean Keepspecialcharacters) throws YosException {
+        String[] split = table_fieldname.toUpperCase().split("[.]");
+        String tablename = split[0];
+        if (!table_field_length_Map.containsKey(tablename)) {
+            HashMap<String, Integer> map = new HashMap<String, Integer>();
+            DBConnect dbConnect = new DBConnect();
+            Rows rows = dbConnect.runSqlQuery("select column_name,numeric_precision from sys_objectcols where table_name='" + tablename + "'");
+            for (Row row : rows) {
+                map.put(row.getString("column_name").toUpperCase(), row.getInteger("numeric_precision"));
+            }
+            table_field_length_Map.put(tablename, map);
+        }
+        String fieldname = split.length == 1 ? key.toUpperCase() : split[1];
+        int maxlength = table_field_length_Map.get(tablename).getOrDefault(fieldname, 0);
+        return getString(key, maxlength, Keepspecialcharacters);
+    }
+
+    public String getStringValue(String key, String table_fieldname, boolean Keepspecialcharacters) throws YosException {
+        Object value = get(key);
+        if (value == null) {
+            return "";
+        }
+        return getString(key, table_fieldname, Keepspecialcharacters);
+    }
+
+
+    /**
+     * 获取String类型的值，并进行长度校验
+     *
+     * @param key
+     * @param maxlength 最大长度限制
+     * @return
+     */
+    public String getString(String key, int maxlength) throws YosException {
+        return getString(key, maxlength, false);
+    }
+
+    public String getStringValue(String key, int maxlength) throws YosException {
+        return getStringValue(key, maxlength, false);
+    }
+
+    /**
+     * 获取String类型的值，并进行长度校验
+     *
+     * @param key
+     * @param maxlength 最大长度限制
+     * @return
+     */
+    public String getString(String key, int maxlength, boolean Keepspecialcharacters) throws YosException {
+        fieldContainsCheck(key, "String");
+        String fieldvalue = getString(key);
+        if (fieldvalue != null) {
+            if (maxlength > 0 && fieldvalue.length() > maxlength) {
+                throw new YosException("[" + key + "] 内容超过最大字数" + maxlength + "限制");
+            }
+            if (!Keepspecialcharacters) {
+                fieldvalue = fieldvalue.replaceAll("([';])+|(--)+", "");//去除特殊字符，防止sql注入
+            }
+        }
+        return fieldvalue;
+    }
+
+    /**
+     * 获取String类型的值，并进行长度校验
+     *
+     * @param key
+     * @param maxlength 最大长度限制
+     * @return
+     */
+    public String getStringValue(String key, int maxlength, boolean Keepspecialcharacters) throws YosException {
+        Object value = get(key);
+        if (value == null) {
+            return "";
+        }
+        return getString(key, maxlength, Keepspecialcharacters);
+    }
+
+    public Date getDate(String key) throws YosException {
+        fieldContainsCheck(key, "Date");
+
+        Object value = get(key);
+        return castToDate(value);
+    }
+
+    public java.sql.Date getSqlDate(String key) throws YosException {
+        fieldContainsCheck(key, "SqlDate");
+        Object value = get(key);
+
+        return castToSqlDate(value);
+    }
+
+    public java.sql.Timestamp getTimestamp(String key) throws YosException {
+        fieldContainsCheck(key, "Timestamp");
+        Object value = get(key);
+
+        return castToTimestamp(value);
+    }
+
+    public Object put(String key, Object value) {
+        return map.put(key, value);
+    }
+
+    public JSONObject fluentPut(String key, Object value) {
+        map.put(key, value);
+        return this;
+    }
+
+    public void putAll(Map<? extends String, ? extends Object> m) {
+        map.putAll(m);
+    }
+
+    public JSONObject fluentPutAll(Map<? extends String, ? extends Object> m) {
+        map.putAll(m);
+        return this;
+    }
+
+    public void clear() {
+        map.clear();
+    }
+
+    public JSONObject fluentClear() {
+        map.clear();
+        return this;
+    }
+
+    public Object remove(Object key) {
+        return map.remove(key);
+    }
+
+    public JSONObject fluentRemove(Object key) {
+        map.remove(key);
+        return this;
+    }
+
+    public Set<String> keySet() {
+        return map.keySet();
+    }
+
+    public Collection<Object> values() {
+        return map.values();
+    }
+
+    public Set<Entry<String, Object>> entrySet() {
+        return map.entrySet();
+    }
+
+    @Override
+    public Object clone() {
+        return new JSONObject(map instanceof LinkedHashMap //
+                ? new LinkedHashMap<String, Object>(map) //
+                : new HashMap<String, Object>(map)
+        );
+    }
+
+    public boolean equals(Object obj) {
+        return this.map.equals(obj);
+    }
+
+    public int hashCode() {
+        return this.map.hashCode();
+    }
+
+    public Object invoke(Object proxy, Method method, Object[] args) {
+        Class<?>[] parameterTypes = method.getParameterTypes();
+        if (parameterTypes.length == 1) {
+            if (method.getName().equals("equals")) {
+                return this.equals(args[0]);
+            }
+
+            Class<?> returnType = method.getReturnType();
+            if (returnType != void.class) {
+                throw new JSONException("illegal setter");
+            }
+
+            String name = null;
+            JSONField annotation = TypeUtils.getAnnotation(method, JSONField.class);
+            if (annotation != null) {
+                if (annotation.name().length() != 0) {
+                    name = annotation.name();
+                }
+            }
+
+            if (name == null) {
+                name = method.getName();
+
+                if (!name.startsWith("set")) {
+                    throw new JSONException("illegal setter");
+                }
+
+                name = name.substring(3);
+                if (name.length() == 0) {
+                    throw new JSONException("illegal setter");
+                }
+                name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
+            }
+
+            map.put(name, args[0]);
+            return null;
+        }
+
+        if (parameterTypes.length == 0) {
+            Class<?> returnType = method.getReturnType();
+            if (returnType == void.class) {
+                throw new JSONException("illegal getter");
+            }
+
+            String name = null;
+            JSONField annotation = TypeUtils.getAnnotation(method, JSONField.class);
+            if (annotation != null) {
+                if (annotation.name().length() != 0) {
+                    name = annotation.name();
+                }
+            }
+
+            if (name == null) {
+                name = method.getName();
+                if (name.startsWith("get")) {
+                    name = name.substring(3);
+                    if (name.length() == 0) {
+                        throw new JSONException("illegal getter");
+                    }
+                    name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
+                } else if (name.startsWith("is")) {
+                    name = name.substring(2);
+                    if (name.length() == 0) {
+                        throw new JSONException("illegal getter");
+                    }
+                    name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
+                } else if (name.startsWith("hashCode")) {
+                    return this.hashCode();
+                } else if (name.startsWith("toString")) {
+                    return this.toString();
+                } else {
+                    throw new JSONException("illegal getter");
+                }
+            }
+
+            Object value = map.get(name);
+            return TypeUtils.cast(value, method.getGenericReturnType(), ParserConfig.getGlobalInstance());
+        }
+
+        throw new UnsupportedOperationException(method.toGenericString());
+    }
+
+    public Map<String, Object> getInnerMap() {
+        return this.map;
+    }
+
+
+    private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException {
+        SecureObjectInputStream.ensureFields();
+        if (SecureObjectInputStream.fields != null && !SecureObjectInputStream.fields_error) {
+            ObjectInputStream secIn = new SecureObjectInputStream(in);
+            try {
+                secIn.defaultReadObject();
+                return;
+            } catch (NotActiveException e) {
+                // skip
+            }
+        }
+
+        in.defaultReadObject();
+        for (Entry entry : map.entrySet()) {
+            final Object key = entry.getKey();
+            if (key != null) {
+                ParserConfig.global.checkAutoType(key.getClass());
+            }
+
+            final Object value = entry.getValue();
+            if (value != null) {
+                ParserConfig.global.checkAutoType(value.getClass());
+            }
+        }
+    }
+
+    static class SecureObjectInputStream extends ObjectInputStream {
+        static Field[] fields;
+        static volatile boolean fields_error;
+
+        static void ensureFields() {
+            if (fields == null && !fields_error) {
+                try {
+                    final Field[] declaredFields = ObjectInputStream.class.getDeclaredFields();
+                    String[] fieldnames = new String[]{"bin", "passHandle", "handles", "curContext"};
+                    Field[] array = new Field[fieldnames.length];
+                    for (int i = 0; i < fieldnames.length; i++) {
+                        Field field = TypeUtils
+                                .getField(ObjectInputStream.class
+                                        , fieldnames[i]
+                                        , declaredFields
+                                );
+                        field.setAccessible(true);
+                        array[i] = field;
+                    }
+                    fields = array;
+                } catch (Throwable error) {
+                    fields_error = true;
+                }
+            }
+        }
+
+        public SecureObjectInputStream(ObjectInputStream in) throws IOException {
+            super(in);
+            try {
+                for (int i = 0; i < fields.length; i++) {
+                    final Field field = fields[i];
+                    final Object value = field.get(in);
+                    field.set(this, value);
+                }
+            } catch (IllegalAccessException e) {
+                fields_error = true;
+            }
+        }
+
+        protected Class<?> resolveClass(ObjectStreamClass desc)
+                throws IOException, ClassNotFoundException {
+            String name = desc.getName();
+            if (name.length() > 2) {
+                int index = name.lastIndexOf('[');
+                if (index != -1) {
+                    name = name.substring(index + 1);
+                }
+                if (name.length() > 2 && name.charAt(0) == 'L' && name.charAt(name.length() - 1) == ';') {
+                    name = name.substring(1, name.length() - 1);
+                }
+                ParserConfig.global.checkAutoType(name, null, Feature.SupportAutoType.mask);
+            }
+            return super.resolveClass(desc);
+        }
+
+        protected Class<?> resolveProxyClass(String[] interfaces)
+                throws IOException, ClassNotFoundException {
+            for (String interfacename : interfaces) {
+                //检查是否处于黑名单
+                ParserConfig.global.checkAutoType(interfacename, null);
+            }
+            return super.resolveProxyClass(interfaces);
+        }
+
+        //Hack:默认构造方法会调用这个方法，重写此方法使用反射还原部分关键属性
+        protected void readStreamHeader() {
+
+        }
+    }
+
+    public <T> T toJavaObject(Class<T> clazz) {
+        if (clazz == Map.class || clazz == JSONObject.class || clazz == JSON.class) {
+            return (T) this;
+        }
+
+        if (clazz == Object.class && !containsKey(JSON.DEFAULT_TYPE_KEY)) {
+            return (T) this;
+        }
+
+        return TypeUtils.castToJavaBean(this, clazz, ParserConfig.getGlobalInstance());
+    }
+
+    public <T> T toJavaObject(Class<T> clazz, ParserConfig config, int features) {
+        if (clazz == Map.class) {
+            return (T) this;
+        }
+
+        if (clazz == Object.class && !containsKey(JSON.DEFAULT_TYPE_KEY)) {
+            return (T) this;
+        }
+
+        return TypeUtils.castToJavaBean(this, clazz, config);
+    }
+
+    /**
+     * 字段栏位是否存在判断
+     *
+     * @param key
+     * @throws YosException
+     */
+    public void fieldContainsCheck(String key, String classname) throws YosException {
+        if (!this.containsKey(key)) {
+            throw new YosException(this.getClass().getSimpleName() + "对象中找不到名为" + key + "的" + classname + "类型参数信息");
+        }
+    }
+}

src/override/com/alibaba/fastjson/util/TypeUtils.java

@@ -0,0 +1,3124 @@
+/*
+ * Copyright 1999-2017 Alibaba Group.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.fastjson.util;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONException;
+import com.alibaba.fastjson.JSONObject;
+import com.alibaba.fastjson.PropertyNamingStrategy;
+import com.alibaba.fastjson.annotation.JSONField;
+import com.alibaba.fastjson.annotation.JSONType;
+import com.alibaba.fastjson.parser.DefaultJSONParser;
+import com.alibaba.fastjson.parser.Feature;
+import com.alibaba.fastjson.parser.JSONScanner;
+import com.alibaba.fastjson.parser.ParserConfig;
+import com.alibaba.fastjson.parser.deserializer.EnumDeserializer;
+import com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer;
+import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
+import com.alibaba.fastjson.serializer.CalendarCodec;
+import com.alibaba.fastjson.serializer.SerializeBeanInfo;
+import com.alibaba.fastjson.serializer.SerializerFeature;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.*;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.security.AccessControlException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+/**
+ * @author wenshao[szujobs@hotmail.com]
+ */
+public class TypeUtils{
+
+    public static boolean compatibleWithJavaBean = false;
+    /** 根据field name的大小写输出输入数据 */
+    public static boolean compatibleWithFieldName = false;
+    private static boolean setAccessibleEnable = true;
+    private static boolean oracleTimestampMethodInited = false;
+    private static Method oracleTimestampMethod;
+    private static boolean oracleDateMethodInited = false;
+    private static Method oracleDateMethod;
+    private static boolean optionalClassInited = false;
+    private static Class<?> optionalClass;
+    private static boolean transientClassInited = false;
+    private static Class<? extends Annotation> transientClass;
+
+    private static Class<? extends Annotation> class_OneToMany = null;
+    private static boolean class_OneToMany_error = false;
+    private static Class<? extends Annotation> class_ManyToMany = null;
+    private static boolean class_ManyToMany_error = false;
+
+    private static Method method_HibernateIsInitialized = null;
+    private static boolean method_HibernateIsInitialized_error = false;
+    private static volatile Class kotlin_metadata;
+    private static volatile boolean kotlin_metadata_error;
+    private static volatile boolean kotlin_class_klass_error;
+    private static volatile Constructor kotlin_kclass_constructor;
+    private static volatile Method kotlin_kclass_getConstructors;
+    private static volatile Method kotlin_kfunction_getParameters;
+    private static volatile Method kotlin_kparameter_getName;
+    private static volatile boolean kotlin_error;
+    private static volatile Map<Class,String[]> kotlinIgnores;
+    private static volatile boolean kotlinIgnores_error;
+    private static ConcurrentMap<String,Class<?>> mappings = new ConcurrentHashMap<String,Class<?>>(256, 0.75f, 1);
+    private static Class<?> pathClass;
+    private static boolean pathClass_error = false;
+
+    private static Class<? extends Annotation> class_JacksonCreator = null;
+    private static boolean class_JacksonCreator_error = false;
+
+    private static volatile Class class_Clob = null;
+    private static volatile boolean class_Clob_error = false;
+
+    private static volatile Class class_XmlAccessType = null;
+    private static volatile Class class_XmlAccessorType = null;
+    private static volatile boolean classXmlAccessorType_error = false;
+    private static volatile Method method_XmlAccessorType_value = null;
+    private static volatile Field field_XmlAccessType_FIELD = null;
+    private static volatile Object field_XmlAccessType_FIELD_VALUE = null;
+
+    static{
+        try{
+            TypeUtils.compatibleWithJavaBean = "true".equals(IOUtils.getStringProperty(IOUtils.FASTJSON_COMPATIBLEWITHJAVABEAN));
+            TypeUtils.compatibleWithFieldName = "true".equals(IOUtils.getStringProperty(IOUtils.FASTJSON_COMPATIBLEWITHFIELDNAME));
+        } catch(Throwable e){
+            // skip
+        }
+    }
+
+    static{
+        addBaseClassMappings();
+    }
+
+
+    public static boolean isXmlField(Class clazz) {
+        if (class_XmlAccessorType == null && !classXmlAccessorType_error) {
+            try {
+                class_XmlAccessorType = Class.forName("javax.xml.bind.annotation.XmlAccessorType");
+            } catch(Throwable ex){
+                classXmlAccessorType_error = true;
+            }
+        }
+
+        if (class_XmlAccessorType == null) {
+            return false;
+        }
+
+        Annotation annotation = TypeUtils.getAnnotation(clazz, class_XmlAccessorType);
+        if (annotation == null) {
+            return false;
+        }
+
+        if (method_XmlAccessorType_value == null && !classXmlAccessorType_error) {
+            try {
+                method_XmlAccessorType_value = class_XmlAccessorType.getMethod("value");
+            } catch(Throwable ex){
+                classXmlAccessorType_error = true;
+            }
+        }
+
+        if (method_XmlAccessorType_value == null) {
+            return false;
+        }
+
+        Object value = null;
+        if (!classXmlAccessorType_error) {
+            try {
+                value = method_XmlAccessorType_value.invoke(annotation);
+            } catch (Throwable ex) {
+                classXmlAccessorType_error = true;
+            }
+        }
+        if (value == null) {
+            return false;
+        }
+
+        if (class_XmlAccessType == null && !classXmlAccessorType_error) {
+            try {
+                class_XmlAccessType = Class.forName("javax.xml.bind.annotation.XmlAccessType");
+                field_XmlAccessType_FIELD = class_XmlAccessType.getField("FIELD");
+                field_XmlAccessType_FIELD_VALUE = field_XmlAccessType_FIELD.get(null);
+            } catch(Throwable ex){
+                classXmlAccessorType_error = true;
+            }
+        }
+
+        return value == field_XmlAccessType_FIELD_VALUE;
+    }
+
+    public static Annotation getXmlAccessorType(Class clazz) {
+        if (class_XmlAccessorType == null && !classXmlAccessorType_error) {
+
+            try{
+                class_XmlAccessorType = Class.forName("javax.xml.bind.annotation.XmlAccessorType");
+            } catch(Throwable ex){
+                classXmlAccessorType_error = true;
+            }
+        }
+
+        if (class_XmlAccessorType == null) {
+            return null;
+        }
+
+        return  TypeUtils.getAnnotation(clazz, class_XmlAccessorType);
+    }
+
+//
+//    public static boolean isXmlAccessType(Class clazz) {
+//        if (class_XmlAccessType == null && !class_XmlAccessType_error) {
+//
+//            try{
+//                class_XmlAccessType = Class.forName("javax.xml.bind.annotation.XmlAccessType");
+//            } catch(Throwable ex){
+//                class_XmlAccessType_error = true;
+//            }
+//        }
+//
+//        if (class_XmlAccessType == null) {
+//            return false;
+//        }
+//
+//        return  class_XmlAccessType.isAssignableFrom(clazz);
+//    }
+
+    public static boolean isClob(Class clazz) {
+        if (class_Clob == null && !class_Clob_error) {
+
+            try{
+                class_Clob = Class.forName("java.sql.Clob");
+            } catch(Throwable ex){
+                class_Clob_error = true;
+            }
+        }
+
+        if (class_Clob == null) {
+            return false;
+        }
+
+        return  class_Clob.isAssignableFrom(clazz);
+    }
+
+    public static String castToString(Object value){
+        if(value == null){
+            return null;
+        }
+        return value.toString();
+    }
+
+    public static Byte castToByte(Object value){
+        if(value == null){
+            return null;
+        }
+
+        if(value instanceof BigDecimal){
+            return byteValue((BigDecimal) value);
+        }
+
+        if(value instanceof Number){
+            return ((Number) value).byteValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            return Byte.parseByte(strVal);
+        }
+        throw new JSONException("can not cast to byte, value : " + value);
+    }
+
+    public static Character castToChar(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof Character){
+            return (Character) value;
+        }
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0){
+                return null;
+            }
+            if(strVal.length() != 1){
+                throw new JSONException("can not cast to char, value : " + value);
+            }
+            return strVal.charAt(0);
+        }
+        throw new JSONException("can not cast to char, value : " + value);
+    }
+
+    public static Short castToShort(Object value){
+        if(value == null){
+            return null;
+        }
+
+        if(value instanceof BigDecimal){
+            return shortValue((BigDecimal) value);
+        }
+
+        if(value instanceof Number){
+            return ((Number) value).shortValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            try {
+                return Short.parseShort(strVal);
+            }catch (Exception e){
+                throw new JSONException("值：" + value+" 不是有效的短整数类型");
+            }
+        }
+
+        //throw new JSONException("can not cast to short, value : " + value);
+        throw new JSONException("值：" + value+" 不是有效的短整数类型");
+    }
+
+    public static BigDecimal castToBigDecimal(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof BigDecimal){
+            return (BigDecimal) value;
+        }
+        if(value instanceof BigInteger){
+            return new BigDecimal((BigInteger) value);
+        }
+        String strVal = value.toString();
+        if(strVal.length() == 0){
+            return null;
+        }
+        if(value instanceof Map && ((Map) value).size() == 0){
+            return null;
+        }
+        return new BigDecimal(strVal);
+    }
+
+    public static BigInteger castToBigInteger(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof BigInteger){
+            return (BigInteger) value;
+        }
+        if(value instanceof Float || value instanceof Double){
+            return BigInteger.valueOf(((Number) value).longValue());
+        }
+        if(value instanceof BigDecimal){
+            BigDecimal decimal = (BigDecimal) value;
+            int scale = decimal.scale();
+            if (scale > -1000 && scale < 1000) {
+                return ((BigDecimal) value).toBigInteger();
+            }
+        }
+        String strVal = value.toString();
+        if(strVal.length() == 0 //
+                || "null".equals(strVal) //
+                || "NULL".equals(strVal)){
+            return null;
+        }
+        return new BigInteger(strVal);
+    }
+
+    public static Float castToFloat(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof Number){
+            return ((Number) value).floatValue();
+        }
+        if(value instanceof String){
+            String strVal = value.toString();
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(strVal.indexOf(',') != 0){
+                strVal = strVal.replaceAll(",", "");
+            }
+            try {
+                return Float.parseFloat(strVal);
+            }catch (Exception e){
+                throw new JSONException("值：" + value+" 不是有效的数字类型");
+            }
+        }
+        // throw new JSONException("can not cast to float, value : " + value);
+        throw new JSONException("值：" + value+" 不是有效的数字类型");
+    }
+
+    public static Double castToDouble(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof Number){
+            return ((Number) value).doubleValue();
+        }
+        if(value instanceof String){
+
+            String strVal = value.toString();
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(strVal.indexOf(',') != 0){
+                strVal = strVal.replaceAll(",", "");
+            }
+            try {
+                return Double.parseDouble(strVal);
+            }catch (Exception e){
+                throw new JSONException("值：" + value+" 不是有效的数字类型");
+            }
+
+        }
+        //throw new JSONException("can not cast to double, value : " + value);
+        throw new JSONException("值：" + value+" 不是有效的数字类型");
+    }
+
+    public static Date castToDate(Object value){
+        return castToDate(value, null);
+    }
+
+    public static Date castToDate(Object value, String format){
+        if(value == null){
+            return null;
+        }
+
+        if(value instanceof Date){ // 使用频率最高的，应优先处理
+            return (Date) value;
+        }
+
+        if(value instanceof Calendar){
+            return ((Calendar) value).getTime();
+        }
+
+        long longValue = -1;
+
+        if(value instanceof BigDecimal){
+            longValue = longValue((BigDecimal) value);
+            return new Date(longValue);
+        }
+
+        if(value instanceof Number){
+            longValue = ((Number) value).longValue();
+            if ("unixtime".equals(format)) {
+                longValue *= 1000;
+            }
+            return new Date(longValue);
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            JSONScanner dateLexer = new JSONScanner(strVal);
+            try{
+                if(dateLexer.scanISO8601DateIfMatch(false)){
+                    Calendar calendar = dateLexer.getCalendar();
+                    return calendar.getTime();
+                }
+            } finally{
+                dateLexer.close();
+            }
+
+            if (strVal.startsWith("/Date(") && strVal.endsWith(")/")) {
+                strVal = strVal.substring(6, strVal.length() - 2);
+            }
+
+            if (strVal.indexOf('-') > 0 || strVal.indexOf('+') > 0) {
+                if (format == null) {
+                    if (strVal.length() == JSON.DEFFAULT_DATE_FORMAT.length()
+                            || (strVal.length() == 22 && JSON.DEFFAULT_DATE_FORMAT.equals("yyyyMMddHHmmssSSSZ"))) {
+                        format = JSON.DEFFAULT_DATE_FORMAT;
+                    } else if (strVal.length() == 10) {
+                        format = "yyyy-MM-dd";
+                    } else if (strVal.length() == "yyyy-MM-dd HH:mm:ss".length()) {
+                        format = "yyyy-MM-dd HH:mm:ss";
+                    } else if (strVal.length() == 29
+                            && strVal.charAt(26) == ':'
+                            && strVal.charAt(28) == '0') {
+                        format = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
+                    } else if (strVal.length() == 23 && strVal.charAt(19) == ',') {
+                        format = "yyyy-MM-dd HH:mm:ss,SSS";
+                    } else {
+                        format = "yyyy-MM-dd HH:mm:ss.SSS";
+                    }
+                }
+
+                SimpleDateFormat dateFormat = new SimpleDateFormat(format, JSON.defaultLocale);
+                dateFormat.setTimeZone(JSON.defaultTimeZone);
+                try{
+                    return dateFormat.parse(strVal);
+                } catch(ParseException e){
+                    throw new JSONException("不是有效的日期格式 : " + strVal);
+                }
+            }
+            if(strVal.length() == 0){
+                return null;
+            }
+            longValue = Long.parseLong(strVal);
+        }
+
+        if (longValue == -1) {
+            Class<?> clazz = value.getClass();
+            if("oracle.sql.TIMESTAMP".equals(clazz.getName())){
+                if(oracleTimestampMethod == null && !oracleTimestampMethodInited){
+                    try{
+                        oracleTimestampMethod = clazz.getMethod("toJdbc");
+                    } catch(NoSuchMethodException e){
+                        // skip
+                    } finally{
+                        oracleTimestampMethodInited = true;
+                    }
+                }
+                Object result;
+                try{
+                    result = oracleTimestampMethod.invoke(value);
+                } catch(Exception e){
+                    throw new JSONException("can not cast oracle.sql.TIMESTAMP to Date", e);
+                }
+                return (Date) result;
+            }
+            if("oracle.sql.DATE".equals(clazz.getName())){
+                if(oracleDateMethod == null && !oracleDateMethodInited){
+                    try{
+                        oracleDateMethod = clazz.getMethod("toJdbc");
+                    } catch(NoSuchMethodException e){
+                        // skip
+                    } finally{
+                        oracleDateMethodInited = true;
+                    }
+                }
+                Object result;
+                try{
+                    result = oracleDateMethod.invoke(value);
+                } catch(Exception e){
+                    throw new JSONException("can not cast oracle.sql.DATE to Date", e);
+                }
+                return (Date) result;
+            }
+
+            throw new JSONException("不是有效的日期格式: " + value);
+        }
+
+        return new Date(longValue);
+    }
+
+    public static java.sql.Date castToSqlDate(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof java.sql.Date){
+            return (java.sql.Date) value;
+        }
+        if(value instanceof Date){
+            return new java.sql.Date(((Date) value).getTime());
+        }
+        if(value instanceof Calendar){
+            return new java.sql.Date(((Calendar) value).getTimeInMillis());
+        }
+
+        long longValue = 0;
+        if(value instanceof BigDecimal){
+            longValue = longValue((BigDecimal) value);
+        } else if(value instanceof Number){
+            longValue = ((Number) value).longValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(isNumber(strVal)){
+                longValue = Long.parseLong(strVal);
+            } else{
+                JSONScanner scanner = new JSONScanner(strVal);
+                if(scanner.scanISO8601DateIfMatch(false)){
+                    longValue = scanner.getCalendar().getTime().getTime();
+                } else{
+                    throw new JSONException("can not cast to Timestamp, value : " + strVal);
+                }
+            }
+        }
+        if(longValue <= 0){
+            throw new JSONException("can not cast to Date, value : " + value);
+        }
+        return new java.sql.Date(longValue);
+    }
+
+    public static long longExtractValue(Number number) {
+        if (number instanceof BigDecimal) {
+            return ((BigDecimal) number).longValueExact();
+        }
+
+        return number.longValue();
+    }
+
+    public static java.sql.Time castToSqlTime(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof java.sql.Time){
+            return (java.sql.Time) value;
+        }
+        if(value instanceof Date){
+            return new java.sql.Time(((Date) value).getTime());
+        }
+        if(value instanceof Calendar){
+            return new java.sql.Time(((Calendar) value).getTimeInMillis());
+        }
+
+        long longValue = 0;
+        if(value instanceof BigDecimal){
+            longValue = longValue((BigDecimal) value);
+        } else if(value instanceof Number){
+            longValue = ((Number) value).longValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equalsIgnoreCase(strVal)){
+                return null;
+            }
+            if(isNumber(strVal)){
+                longValue = Long.parseLong(strVal);
+            } else{
+                JSONScanner scanner = new JSONScanner(strVal);
+                if(scanner.scanISO8601DateIfMatch(false)){
+                    longValue = scanner.getCalendar().getTime().getTime();
+                } else{
+                    throw new JSONException("can not cast to Timestamp, value : " + strVal);
+                }
+            }
+        }
+        if(longValue <= 0){
+            throw new JSONException("can not cast to Date, value : " + value);
+        }
+        return new java.sql.Time(longValue);
+    }
+
+    public static java.sql.Timestamp castToTimestamp(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof Calendar){
+            return new java.sql.Timestamp(((Calendar) value).getTimeInMillis());
+        }
+        if(value instanceof java.sql.Timestamp){
+            return (java.sql.Timestamp) value;
+        }
+        if(value instanceof Date){
+            return new java.sql.Timestamp(((Date) value).getTime());
+        }
+        long longValue = 0;
+        if(value instanceof BigDecimal){
+            longValue = longValue((BigDecimal) value);
+        } else if(value instanceof Number){
+            longValue = ((Number) value).longValue();
+        }
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(strVal.endsWith(".000000000")){
+                strVal = strVal.substring(0, strVal.length() - 10);
+            } else if(strVal.endsWith(".000000")){
+                strVal = strVal.substring(0, strVal.length() - 7);
+            }
+            if(isNumber(strVal)){
+                longValue = Long.parseLong(strVal);
+            } else{
+                JSONScanner scanner = new JSONScanner(strVal);
+                if(scanner.scanISO8601DateIfMatch(false)){
+                    longValue = scanner.getCalendar().getTime().getTime();
+                } else{
+                    throw new JSONException("can not cast to Timestamp, value : " + strVal);
+                }
+            }
+        }
+        if(longValue <= 0){
+            throw new JSONException("can not cast to Timestamp, value : " + value);
+        }
+        return new java.sql.Timestamp(longValue);
+    }
+
+    public static boolean isNumber(String str){
+        for(int i = 0; i < str.length(); ++i){
+            char ch = str.charAt(i);
+            if(ch == '+' || ch == '-'){
+                if(i != 0){
+                    return false;
+                }
+            } else if(ch < '0' || ch > '9'){
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public static Long castToLong(Object value){
+        if(value == null){
+            return null;
+        }
+
+        if(value instanceof BigDecimal){
+            return longValue((BigDecimal) value);
+        }
+
+        if(value instanceof Number){
+            return ((Number) value).longValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(strVal.indexOf(',') != 0){
+                strVal = strVal.replaceAll(",", "");
+            }
+            try{
+                return Long.parseLong(strVal);
+            } catch(NumberFormatException ex){
+                //
+            }
+            JSONScanner dateParser = new JSONScanner(strVal);
+            Calendar calendar = null;
+            if(dateParser.scanISO8601DateIfMatch(false)){
+                calendar = dateParser.getCalendar();
+            }
+            dateParser.close();
+            if(calendar != null){
+                return calendar.getTimeInMillis();
+            }
+        }
+
+        if(value instanceof Map){
+            Map map = (Map) value;
+            if(map.size() == 2
+                    && map.containsKey("andIncrement")
+                    && map.containsKey("andDecrement")){
+                Iterator iter = map.values().iterator();
+                iter.next();
+                Object value2 = iter.next();
+                try {
+                    return castToLong(value2);
+                }catch (Exception e){
+                    throw new JSONException("值：" + value+" 不是有效的数字类型");
+                }
+            }
+        }
+        //throw new JSONException("can not cast to long, value : " + value);
+        throw new JSONException("值：" + value+" 不是有效的数字类型");
+    }
+
+    public static byte byteValue(BigDecimal decimal) {
+        if (decimal == null) {
+            return 0;
+        }
+
+        int scale = decimal.scale();
+        if (scale >= -100 && scale <= 100) {
+            return decimal.byteValue();
+        }
+
+        return decimal.byteValueExact();
+    }
+
+    public static short shortValue(BigDecimal decimal) {
+        if (decimal == null) {
+            return 0;
+        }
+
+        int scale = decimal.scale();
+        if (scale >= -100 && scale <= 100) {
+            return decimal.shortValue();
+        }
+
+        return decimal.shortValueExact();
+    }
+
+    public static int intValue(BigDecimal decimal) {
+        if (decimal == null) {
+            return 0;
+        }
+
+        int scale = decimal.scale();
+        if (scale >= -100 && scale <= 100) {
+            return decimal.intValue();
+        }
+
+        return decimal.intValueExact();
+    }
+
+    public static long longValue(BigDecimal decimal) {
+        if (decimal == null) {
+            return 0;
+        }
+
+        int scale = decimal.scale();
+        if (scale >= -100 && scale <= 100) {
+            return decimal.longValue();
+        }
+
+        return decimal.longValueExact();
+    }
+
+    public static Integer castToInt(Object value){
+        if(value == null){
+            return null;
+        }
+
+        if(value instanceof Integer){
+            return (Integer) value;
+        }
+
+        if(value instanceof BigDecimal){
+            return intValue((BigDecimal) value);
+        }
+
+        if(value instanceof Number){
+            return ((Number) value).intValue();
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if(strVal.indexOf(',') != 0){
+                strVal = strVal.replaceAll(",", "");
+            }
+            return Integer.parseInt(strVal);
+        }
+
+        if(value instanceof Boolean){
+            return ((Boolean) value).booleanValue() ? 1 : 0;
+        }
+        if(value instanceof Map){
+            Map map = (Map) value;
+            if(map.size() == 2
+                    && map.containsKey("andIncrement")
+                    && map.containsKey("andDecrement")){
+                Iterator iter = map.values().iterator();
+                iter.next();
+                Object value2 = iter.next();
+                try {
+                    return castToInt(value2);
+                }catch (Exception e){
+                    throw new JSONException("值：" + value+" 不是有效的整数类型");
+                }
+            }
+        }
+        //throw new JSONException("can not cast to int, value : " + value);
+        throw new JSONException("值：" + value+" 不是有效的整数类型");
+    }
+
+    public static byte[] castToBytes(Object value){
+        if(value instanceof byte[]){
+            return (byte[]) value;
+        }
+        if(value instanceof String){
+            return IOUtils.decodeBase64((String) value);
+        }
+        throw new JSONException("can not cast to byte[], value : " + value);
+    }
+
+    public static Boolean castToBoolean(Object value){
+        if(value == null){
+            return null;
+        }
+        if(value instanceof Boolean){
+            return (Boolean) value;
+        }
+
+        if(value instanceof BigDecimal){
+            return intValue((BigDecimal) value) == 1;
+        }
+
+        if(value instanceof Number){
+            return ((Number) value).intValue() == 1;
+        }
+
+        if(value instanceof String){
+            String strVal = (String) value;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+            if("true".equalsIgnoreCase(strVal) //
+                    || "1".equals(strVal)){
+                return Boolean.TRUE;
+            }
+            if("false".equalsIgnoreCase(strVal) //
+                    || "0".equals(strVal)){
+                return Boolean.FALSE;
+            }
+            if("Y".equalsIgnoreCase(strVal) //
+                    || "T".equals(strVal)){
+                return Boolean.TRUE;
+            }
+            if("F".equalsIgnoreCase(strVal) //
+                    || "N".equals(strVal)){
+                return Boolean.FALSE;
+            }
+        }
+        throw new JSONException("can not cast to boolean, value : " + value);
+    }
+
+    public static <T> T castToJavaBean(Object obj, Class<T> clazz){
+        return cast(obj, clazz, ParserConfig.getGlobalInstance());
+    }
+
+    @SuppressWarnings({"unchecked", "rawtypes"})
+    public static <T> T cast(Object obj, Class<T> clazz, ParserConfig config){
+        if(obj == null){
+            if(clazz == int.class){
+                return (T) Integer.valueOf(0);
+            } else if(clazz == long.class){
+                return (T) Long.valueOf(0);
+            } else if(clazz == short.class){
+                return (T) Short.valueOf((short) 0);
+            } else if(clazz == byte.class){
+                return (T) Byte.valueOf((byte) 0);
+            } else if(clazz == float.class){
+                return (T) Float.valueOf(0);
+            } else if(clazz == double.class){
+                return (T) Double.valueOf(0);
+            } else if(clazz == boolean.class){
+                return (T) Boolean.FALSE;
+            }
+            return null;
+        }
+
+        if(clazz == null){
+            throw new IllegalArgumentException("clazz is null");
+        }
+
+        if(clazz == obj.getClass()){
+            return (T) obj;
+        }
+
+        if(obj instanceof Map){
+            if(clazz == Map.class){
+                return (T) obj;
+            }
+
+            Map map = (Map) obj;
+            if(clazz == Object.class && !map.containsKey(JSON.DEFAULT_TYPE_KEY)){
+                return (T) obj;
+            }
+            return castToJavaBean((Map<String,Object>) obj, clazz, config);
+        }
+
+        if(clazz.isArray()){
+            if(obj instanceof Collection){
+                Collection collection = (Collection) obj;
+                int index = 0;
+                Object array = Array.newInstance(clazz.getComponentType(), collection.size());
+                for(Object item : collection){
+                    Object value = cast(item, clazz.getComponentType(), config);
+                    Array.set(array, index, value);
+                    index++;
+                }
+                return (T) array;
+            }
+            if(clazz == byte[].class){
+                return (T) castToBytes(obj);
+            }
+        }
+
+        if(clazz.isAssignableFrom(obj.getClass())){
+            return (T) obj;
+        }
+
+        if(clazz == boolean.class || clazz == Boolean.class){
+            return (T) castToBoolean(obj);
+        }
+
+        if(clazz == byte.class || clazz == Byte.class){
+            return (T) castToByte(obj);
+        }
+
+        if(clazz == char.class || clazz == Character.class){
+            return (T) castToChar(obj);
+        }
+
+        if(clazz == short.class || clazz == Short.class){
+            return (T) castToShort(obj);
+        }
+
+        if(clazz == int.class || clazz == Integer.class){
+            return (T) castToInt(obj);
+        }
+
+        if(clazz == long.class || clazz == Long.class){
+            return (T) castToLong(obj);
+        }
+
+        if(clazz == float.class || clazz == Float.class){
+            return (T) castToFloat(obj);
+        }
+
+        if(clazz == double.class || clazz == Double.class){
+            return (T) castToDouble(obj);
+        }
+
+        if(clazz == String.class){
+            return (T) castToString(obj);
+        }
+
+        if(clazz == BigDecimal.class){
+            return (T) castToBigDecimal(obj);
+        }
+
+        if(clazz == BigInteger.class){
+            return (T) castToBigInteger(obj);
+        }
+
+        if(clazz == Date.class){
+            return (T) castToDate(obj);
+        }
+
+        if(clazz == java.sql.Date.class){
+            return (T) castToSqlDate(obj);
+        }
+
+        if(clazz == java.sql.Time.class){
+            return (T) castToSqlTime(obj);
+        }
+
+        if(clazz == java.sql.Timestamp.class){
+            return (T) castToTimestamp(obj);
+        }
+
+        if(clazz.isEnum()){
+            return castToEnum(obj, clazz, config);
+        }
+
+        if(Calendar.class.isAssignableFrom(clazz)){
+            Date date = castToDate(obj);
+            Calendar calendar;
+            if(clazz == Calendar.class){
+                calendar = Calendar.getInstance(JSON.defaultTimeZone, JSON.defaultLocale);
+            } else{
+                try{
+                    calendar = (Calendar) clazz.newInstance();
+                } catch(Exception e){
+                    throw new JSONException("can not cast to : " + clazz.getName(), e);
+                }
+            }
+            calendar.setTime(date);
+            return (T) calendar;
+        }
+
+        String className = clazz.getName();
+        if(className.equals("javax.xml.datatype.XMLGregorianCalendar")){
+            Date date = castToDate(obj);
+            Calendar calendar = Calendar.getInstance(JSON.defaultTimeZone, JSON.defaultLocale);
+            calendar.setTime(date);
+            return (T) CalendarCodec.instance.createXMLGregorianCalendar(calendar);
+        }
+
+        if(obj instanceof String){
+            String strVal = (String) obj;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+
+            if(clazz == Currency.class){
+                return (T) Currency.getInstance(strVal);
+            }
+
+            if(clazz == Locale.class){
+                return (T) toLocale(strVal);
+            }
+
+            if (className.startsWith("java.time.")) {
+                String json = JSON.toJSONString(strVal);
+                return JSON.parseObject(json, clazz);
+            }
+        }
+
+        final ObjectDeserializer objectDeserializer = config.get(clazz);
+        if (objectDeserializer != null) {
+            String str = JSON.toJSONString(obj);
+            return JSON.parseObject(str, clazz);
+        }
+        throw new JSONException("can not cast to : " + clazz.getName());
+    }
+
+    public static Locale toLocale(String strVal){
+        String[] items = strVal.split("_");
+        if(items.length == 1){
+            return new Locale(items[0]);
+        }
+        if(items.length == 2){
+            return new Locale(items[0], items[1]);
+        }
+        return new Locale(items[0], items[1], items[2]);
+    }
+
+    @SuppressWarnings({"unchecked", "rawtypes"})
+    public static <T> T castToEnum(Object obj, Class<T> clazz, ParserConfig mapping){
+        try{
+            if(obj instanceof String){
+                String name = (String) obj;
+                if(name.length() == 0){
+                    return null;
+                }
+
+                if (mapping == null) {
+                    mapping = ParserConfig.getGlobalInstance();
+                }
+
+                ObjectDeserializer deserializer = mapping.getDeserializer(clazz);
+                if (deserializer instanceof EnumDeserializer) {
+                    EnumDeserializer enumDeserializer = (EnumDeserializer) deserializer;
+                    return (T) enumDeserializer.getEnumByHashCode(TypeUtils.fnv1a_64(name));
+                }
+
+                return (T) Enum.valueOf((Class<? extends Enum>) clazz, name);
+            }
+
+            if(obj instanceof BigDecimal){
+                int ordinal = intValue((BigDecimal) obj);
+                Object[] values = clazz.getEnumConstants();
+                if(ordinal < values.length){
+                    return (T) values[ordinal];
+                }
+            }
+
+            if(obj instanceof Number){
+                int ordinal = ((Number) obj).intValue();
+                Object[] values = clazz.getEnumConstants();
+                if(ordinal < values.length){
+                    return (T) values[ordinal];
+                }
+            }
+        } catch(Exception ex){
+            throw new JSONException("can not cast to : " + clazz.getName(), ex);
+        }
+        throw new JSONException("can not cast to : " + clazz.getName());
+    }
+
+    @SuppressWarnings("unchecked")
+    public static <T> T cast(Object obj, Type type, ParserConfig mapping){
+        if(obj == null){
+            return null;
+        }
+        if(type instanceof Class){
+            return cast(obj, (Class<T>) type, mapping);
+        }
+        if(type instanceof ParameterizedType){
+            return (T) cast(obj, (ParameterizedType) type, mapping);
+        }
+        if(obj instanceof String){
+            String strVal = (String) obj;
+            if(strVal.length() == 0 //
+                    || "null".equals(strVal) //
+                    || "NULL".equals(strVal)){
+                return null;
+            }
+        }
+        if(type instanceof TypeVariable){
+            return (T) obj;
+        }
+        throw new JSONException("can not cast to : " + type);
+    }
+
+    @SuppressWarnings({"rawtypes", "unchecked"})
+    public static <T> T cast(Object obj, ParameterizedType type, ParserConfig mapping){
+        Type rawTye = type.getRawType();
+
+        if(rawTye == List.class || rawTye == ArrayList.class){
+            Type itemType = type.getActualTypeArguments()[0];
+            if(obj instanceof List){
+                List listObj = (List) obj;
+                List arrayList = new ArrayList(listObj.size());
+
+                for (int i = 0; i < listObj.size(); i++) {
+                    Object item = listObj.get(i);
+
+                    Object itemValue;
+                    if (itemType instanceof Class) {
+                        if (item != null && item.getClass() == JSONObject.class) {
+                            itemValue = ((JSONObject) item).toJavaObject((Class<T>) itemType, mapping, 0);
+                        } else {
+                            itemValue = cast(item, (Class<T>) itemType, mapping);
+                        }
+                    } else {
+                        itemValue = cast(item, itemType, mapping);
+                    }
+
+                    arrayList.add(itemValue);
+                }
+                return (T) arrayList;
+            }
+        }
+
+        if(rawTye == Set.class || rawTye == HashSet.class //
+                || rawTye == TreeSet.class //
+                || rawTye == Collection.class //
+                || rawTye == List.class //
+                || rawTye == ArrayList.class){
+            Type itemType = type.getActualTypeArguments()[0];
+            if(obj instanceof Iterable){
+                Collection collection;
+                if(rawTye == Set.class || rawTye == HashSet.class){
+                    collection = new HashSet();
+                } else if(rawTye == TreeSet.class){
+                    collection = new TreeSet();
+                } else{
+                    collection = new ArrayList();
+                }
+                for(Iterator it = ((Iterable) obj).iterator(); it.hasNext(); ){
+                    Object item = it.next();
+
+                    Object itemValue;
+                    if (itemType instanceof Class) {
+                        if (item != null && item.getClass() == JSONObject.class) {
+                            itemValue = ((JSONObject) item).toJavaObject((Class<T>) itemType, mapping, 0);
+                        } else {
+                            itemValue = cast(item, (Class<T>) itemType, mapping);
+                        }
+                    } else {
+                        itemValue = cast(item, itemType, mapping);
+                    }
+
+                    collection.add(itemValue);
+                }
+                return (T) collection;
+            }
+        }
+
+        if(rawTye == Map.class || rawTye == HashMap.class){
+            Type keyType = type.getActualTypeArguments()[0];
+            Type valueType = type.getActualTypeArguments()[1];
+            if(obj instanceof Map){
+                Map map = new HashMap();
+                for(Map.Entry entry : ((Map<?,?>) obj).entrySet()){
+                    Object key = cast(entry.getKey(), keyType, mapping);
+                    Object value = cast(entry.getValue(), valueType, mapping);
+                    map.put(key, value);
+                }
+                return (T) map;
+            }
+        }
+        if(obj instanceof String){
+            String strVal = (String) obj;
+            if(strVal.length() == 0){
+                return null;
+            }
+        }
+        if(type.getActualTypeArguments().length == 1){
+            Type argType = type.getActualTypeArguments()[0];
+            if(argType instanceof WildcardType){
+                return (T) cast(obj, rawTye, mapping);
+            }
+        }
+
+        if (rawTye == Map.Entry.class && obj instanceof Map && ((Map) obj).size() == 1) {
+            Map.Entry entry = (Map.Entry) ((Map) obj).entrySet().iterator().next();
+            return (T) entry;
+        }
+
+        if (rawTye instanceof Class) {
+            if (mapping == null) {
+                mapping = ParserConfig.global;
+            }
+            ObjectDeserializer deserializer = mapping.getDeserializer(rawTye);
+            if (deserializer != null) {
+                String str = JSON.toJSONString(obj);
+                DefaultJSONParser parser = new DefaultJSONParser(str, mapping);
+                return (T) deserializer.deserialze(parser, type, null);
+            }
+        }
+
+        throw new JSONException("can not cast to : " + type);
+    }
+
+    @SuppressWarnings({"unchecked"})
+    public static <T> T castToJavaBean(Map<String,Object> map, Class<T> clazz, ParserConfig config){
+        try{
+            if(clazz == StackTraceElement.class){
+                String declaringClass = (String) map.get("className");
+                String methodName = (String) map.get("methodName");
+                String fileName = (String) map.get("fileName");
+                int lineNumber;
+                {
+                    Number value = (Number) map.get("lineNumber");
+                    if(value == null) {
+                        lineNumber = 0;
+                    } else if (value instanceof BigDecimal) {
+                        lineNumber = ((BigDecimal) value).intValueExact();
+                    } else{
+                        lineNumber = value.intValue();
+                    }
+                }
+                return (T) new StackTraceElement(declaringClass, methodName, fileName, lineNumber);
+            }
+
+            {
+                Object iClassObject = map.get(JSON.DEFAULT_TYPE_KEY);
+                if(iClassObject instanceof String){
+                    String className = (String) iClassObject;
+                    Class<?> loadClazz;
+                    if(config == null){
+                        config = ParserConfig.global;
+                    }
+                    loadClazz = config.checkAutoType(className, null);
+                    if(loadClazz == null){
+                        throw new ClassNotFoundException(className + " not found");
+                    }
+                    if(!loadClazz.equals(clazz)){
+                        return (T) castToJavaBean(map, loadClazz, config);
+                    }
+                }
+            }
+
+            if(clazz.isInterface()){
+                JSONObject object;
+                if(map instanceof JSONObject){
+                    object = (JSONObject) map;
+                } else{
+                    object = new JSONObject(map);
+                }
+                if(config == null){
+                    config = ParserConfig.getGlobalInstance();
+                }
+                ObjectDeserializer deserializer = config.get(clazz);
+                if(deserializer != null){
+                    String json = JSON.toJSONString(object);
+                    return JSON.parseObject(json, clazz);
+                }
+                return (T) Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(),
+                        new Class<?>[]{clazz}, object);
+            }
+
+            if(clazz == Locale.class){
+                Object arg0 = map.get("language");
+                Object arg1 = map.get("country");
+                if(arg0 instanceof String){
+                    String language = (String) arg0;
+                    if(arg1 instanceof String){
+                        String country = (String) arg1;
+                        return (T) new Locale(language, country);
+                    } else if(arg1 == null){
+                        return (T) new Locale(language);
+                    }
+                }
+            }
+
+            if (clazz == String.class && map instanceof JSONObject) {
+                return (T) map.toString();
+            }
+
+            if (clazz == JSON.class && map instanceof JSONObject) {
+                return (T) map;
+            }
+
+            if (clazz == LinkedHashMap.class && map instanceof JSONObject) {
+                JSONObject jsonObject = (JSONObject) map;
+                Map innerMap = jsonObject.getInnerMap();
+                if (innerMap instanceof LinkedHashMap) {
+                    return (T) innerMap;
+                } else {
+                    LinkedHashMap linkedHashMap = new LinkedHashMap();
+                    linkedHashMap.putAll(innerMap);
+                }
+            }
+
+            if (clazz.isInstance(map)) {
+                return (T) map;
+            }
+
+            if (clazz == JSONObject.class) {
+                return (T) new JSONObject(map);
+            }
+
+            if (config == null) {
+                config = ParserConfig.getGlobalInstance();
+            }
+
+            JavaBeanDeserializer javaBeanDeser = null;
+            ObjectDeserializer deserializer = config.getDeserializer(clazz);
+            if (deserializer instanceof JavaBeanDeserializer) {
+                javaBeanDeser = (JavaBeanDeserializer) deserializer;
+            }
+
+            if(javaBeanDeser == null){
+                throw new JSONException("can not get javaBeanDeserializer. " + clazz.getName());
+            }
+            return (T) javaBeanDeser.createInstance(map, config);
+        } catch(Exception e){
+            throw new JSONException(e.getMessage(), e);
+        }
+    }
+
+    private static void addBaseClassMappings(){
+        mappings.put("byte", byte.class);
+        mappings.put("short", short.class);
+        mappings.put("int", int.class);
+        mappings.put("long", long.class);
+        mappings.put("float", float.class);
+        mappings.put("double", double.class);
+        mappings.put("boolean", boolean.class);
+        mappings.put("char", char.class);
+        mappings.put("[byte", byte[].class);
+        mappings.put("[short", short[].class);
+        mappings.put("[int", int[].class);
+        mappings.put("[long", long[].class);
+        mappings.put("[float", float[].class);
+        mappings.put("[double", double[].class);
+        mappings.put("[boolean", boolean[].class);
+        mappings.put("[char", char[].class);
+        mappings.put("[B", byte[].class);
+        mappings.put("[S", short[].class);
+        mappings.put("[I", int[].class);
+        mappings.put("[J", long[].class);
+        mappings.put("[F", float[].class);
+        mappings.put("[D", double[].class);
+        mappings.put("[C", char[].class);
+        mappings.put("[Z", boolean[].class);
+        Class<?>[] classes = new Class[]{
+                Object.class,
+                Cloneable.class,
+                loadClass("java.lang.AutoCloseable"),
+                Exception.class,
+                RuntimeException.class,
+                IllegalAccessError.class,
+                IllegalAccessException.class,
+                IllegalArgumentException.class,
+                IllegalMonitorStateException.class,
+                IllegalStateException.class,
+                IllegalThreadStateException.class,
+                IndexOutOfBoundsException.class,
+                InstantiationError.class,
+                InstantiationException.class,
+                InternalError.class,
+                InterruptedException.class,
+                LinkageError.class,
+                NegativeArraySizeException.class,
+                NoClassDefFoundError.class,
+                NoSuchFieldError.class,
+                NoSuchFieldException.class,
+                NoSuchMethodError.class,
+                NoSuchMethodException.class,
+                NullPointerException.class,
+                NumberFormatException.class,
+                OutOfMemoryError.class,
+                SecurityException.class,
+                StackOverflowError.class,
+                StringIndexOutOfBoundsException.class,
+                TypeNotPresentException.class,
+                VerifyError.class,
+                StackTraceElement.class,
+                HashMap.class,
+                Hashtable.class,
+                TreeMap.class,
+                java.util.IdentityHashMap.class,
+                WeakHashMap.class,
+                LinkedHashMap.class,
+                HashSet.class,
+                LinkedHashSet.class,
+                TreeSet.class,
+                ArrayList.class,
+                java.util.concurrent.TimeUnit.class,
+                ConcurrentHashMap.class,
+                java.util.concurrent.atomic.AtomicInteger.class,
+                java.util.concurrent.atomic.AtomicLong.class,
+                Collections.EMPTY_MAP.getClass(),
+                Boolean.class,
+                Character.class,
+                Byte.class,
+                Short.class,
+                Integer.class,
+                Long.class,
+                Float.class,
+                Double.class,
+                Number.class,
+                String.class,
+                BigDecimal.class,
+                BigInteger.class,
+                BitSet.class,
+                Calendar.class,
+                Date.class,
+                Locale.class,
+                UUID.class,
+                java.sql.Time.class,
+                java.sql.Date.class,
+                java.sql.Timestamp.class,
+                SimpleDateFormat.class,
+                JSONObject.class,
+                com.alibaba.fastjson.JSONPObject.class,
+                com.alibaba.fastjson.JSONArray.class,
+        };
+        for(Class clazz : classes){
+            if(clazz == null){
+                continue;
+            }
+            mappings.put(clazz.getName(), clazz);
+        }
+    }
+
+    public static void clearClassMapping(){
+        mappings.clear();
+        addBaseClassMappings();
+    }
+
+    public static void addMapping(String className, Class<?> clazz) {
+        mappings.put(className, clazz);
+    }
+
+    public static Class<?> loadClass(String className){
+        return loadClass(className, null);
+    }
+
+    public static boolean isPath(Class<?> clazz){
+        if(pathClass == null && !pathClass_error){
+            try{
+                pathClass = Class.forName("java.nio.file.Path");
+            } catch(Throwable ex){
+                pathClass_error = true;
+            }
+        }
+        if(pathClass != null){
+            return pathClass.isAssignableFrom(clazz);
+        }
+        return false;
+    }
+
+    public static Class<?> getClassFromMapping(String className){
+        return mappings.get(className);
+    }
+
+    public static Class<?> loadClass(String className, ClassLoader classLoader) {
+        return loadClass(className, classLoader, false);
+    }
+
+    public static Class<?> loadClass(String className, ClassLoader classLoader, boolean cache) {
+        if(className == null || className.length() == 0 || className.length() > 128){
+            return null;
+        }
+
+        Class<?> clazz = mappings.get(className);
+        if(clazz != null){
+            return clazz;
+        }
+
+        if(className.charAt(0) == '['){
+            Class<?> componentType = loadClass(className.substring(1), classLoader);
+            return Array.newInstance(componentType, 0).getClass();
+        }
+
+        if(className.startsWith("L") && className.endsWith(";")){
+            String newClassName = className.substring(1, className.length() - 1);
+            return loadClass(newClassName, classLoader);
+        }
+
+        try{
+            if(classLoader != null){
+                clazz = classLoader.loadClass(className);
+                if (cache) {
+                    mappings.put(className, clazz);
+                }
+                return clazz;
+            }
+        } catch(Throwable e){
+            e.printStackTrace();
+            // skip
+        }
+        try{
+            ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
+            if(contextClassLoader != null && contextClassLoader != classLoader){
+                clazz = contextClassLoader.loadClass(className);
+                if (cache) {
+                    mappings.put(className, clazz);
+                }
+                return clazz;
+            }
+        } catch(Throwable e){
+            // skip
+        }
+        try{
+            clazz = Class.forName(className);
+            if (cache) {
+                mappings.put(className, clazz);
+            }
+            return clazz;
+        } catch(Throwable e){
+            // skip
+        }
+        return clazz;
+    }
+
+    public static SerializeBeanInfo buildBeanInfo(Class<?> beanType //
+            , Map<String,String> aliasMap //
+            , PropertyNamingStrategy propertyNamingStrategy){
+        return buildBeanInfo(beanType, aliasMap, propertyNamingStrategy, false);
+    }
+
+    public static SerializeBeanInfo buildBeanInfo(Class<?> beanType //
+            , Map<String,String> aliasMap //
+            , PropertyNamingStrategy propertyNamingStrategy //
+            , boolean fieldBased //
+    ){
+        JSONType jsonType = TypeUtils.getAnnotation(beanType,JSONType.class);
+        String[] orders = null;
+        final int features;
+        String typeName = null, typeKey = null;
+        if(jsonType != null){
+            orders = jsonType.orders();
+
+            typeName = jsonType.typeName();
+            if(typeName.length() == 0){
+                typeName = null;
+            }
+
+            PropertyNamingStrategy jsonTypeNaming = jsonType.naming();
+            if (jsonTypeNaming != PropertyNamingStrategy.CamelCase) {
+                propertyNamingStrategy = jsonTypeNaming;
+            }
+
+            features = SerializerFeature.of(jsonType.serialzeFeatures());
+            for(Class<?> supperClass = beanType.getSuperclass()
+                ; supperClass != null && supperClass != Object.class
+                    ; supperClass = supperClass.getSuperclass()){
+                JSONType superJsonType = TypeUtils.getAnnotation(supperClass,JSONType.class);
+                if(superJsonType == null){
+                    break;
+                }
+                typeKey = superJsonType.typeKey();
+                if(typeKey.length() != 0){
+                    break;
+                }
+            }
+
+            for(Class<?> interfaceClass : beanType.getInterfaces()){
+                JSONType superJsonType = TypeUtils.getAnnotation(interfaceClass,JSONType.class);
+                if(superJsonType != null){
+                    typeKey = superJsonType.typeKey();
+                    if(typeKey.length() != 0){
+                        break;
+                    }
+                }
+            }
+
+            if(typeKey != null && typeKey.length() == 0){
+                typeKey = null;
+            }
+        } else{
+            features = 0;
+        }
+        // fieldName,field ，先生成fieldName的快照，减少之后的findField的轮询
+        Map<String,Field> fieldCacheMap = new HashMap<String,Field>();
+        ParserConfig.parserAllFieldToCache(beanType, fieldCacheMap);
+        List<FieldInfo> fieldInfoList = fieldBased
+                ? computeGettersWithFieldBase(beanType, aliasMap, false, propertyNamingStrategy) //
+                : computeGetters(beanType, jsonType, aliasMap, fieldCacheMap, false, propertyNamingStrategy);
+        FieldInfo[] fields = new FieldInfo[fieldInfoList.size()];
+        fieldInfoList.toArray(fields);
+        FieldInfo[] sortedFields;
+        List<FieldInfo> sortedFieldList;
+        if(orders != null && orders.length != 0){
+            sortedFieldList = fieldBased
+                    ? computeGettersWithFieldBase(beanType, aliasMap, true, propertyNamingStrategy) //
+                    : computeGetters(beanType, jsonType, aliasMap, fieldCacheMap, true, propertyNamingStrategy);
+        } else{
+            sortedFieldList = new ArrayList<FieldInfo>(fieldInfoList);
+            Collections.sort(sortedFieldList);
+        }
+        sortedFields = new FieldInfo[sortedFieldList.size()];
+        sortedFieldList.toArray(sortedFields);
+        if(Arrays.equals(sortedFields, fields)){
+            sortedFields = fields;
+        }
+        return new SerializeBeanInfo(beanType, jsonType, typeName, typeKey, features, fields, sortedFields);
+    }
+
+    public static List<FieldInfo> computeGettersWithFieldBase(
+            Class<?> clazz, //
+            Map<String,String> aliasMap, //
+            boolean sorted, //
+            PropertyNamingStrategy propertyNamingStrategy){
+        Map<String,FieldInfo> fieldInfoMap = new LinkedHashMap<String,FieldInfo>();
+        for(Class<?> currentClass = clazz; currentClass != null; currentClass = currentClass.getSuperclass()){
+            Field[] fields = currentClass.getDeclaredFields();
+            computeFields(currentClass, aliasMap, propertyNamingStrategy, fieldInfoMap, fields);
+        }
+        return getFieldInfos(clazz, sorted, fieldInfoMap);
+    }
+
+    public static List<FieldInfo> computeGetters(Class<?> clazz, Map<String,String> aliasMap){
+        return computeGetters(clazz, aliasMap, true);
+    }
+
+    public static List<FieldInfo> computeGetters(Class<?> clazz, Map<String,String> aliasMap, boolean sorted){
+        JSONType jsonType = TypeUtils.getAnnotation(clazz,JSONType.class);
+        Map<String,Field> fieldCacheMap = new HashMap<String,Field>();
+        ParserConfig.parserAllFieldToCache(clazz, fieldCacheMap);
+        return computeGetters(clazz, jsonType, aliasMap, fieldCacheMap, sorted, PropertyNamingStrategy.CamelCase);
+    }
+
+    public static List<FieldInfo> computeGetters(Class<?> clazz, //
+                                                 JSONType jsonType, //
+                                                 Map<String,String> aliasMap, //
+                                                 Map<String,Field> fieldCacheMap, //
+                                                 boolean sorted, //
+                                                 PropertyNamingStrategy propertyNamingStrategy //
+    ){
+        Map<String,FieldInfo> fieldInfoMap = new LinkedHashMap<String,FieldInfo>();
+        boolean kotlin = TypeUtils.isKotlin(clazz);
+        // for kotlin
+        Constructor[] constructors = null;
+        Annotation[][] paramAnnotationArrays = null;
+        String[] paramNames = null;
+        short[] paramNameMapping = null;
+        Method[] methods = clazz.getMethods();
+        for(Method method : methods){
+            String methodName = method.getName();
+            int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
+            String label = null;
+            if(Modifier.isStatic(method.getModifiers())){
+                continue;
+            }
+            if(method.getReturnType().equals(Void.TYPE)){
+                continue;
+            }
+            if(method.getParameterTypes().length != 0){
+                continue;
+            }
+            if(method.getReturnType() == ClassLoader.class){
+                continue;
+            }
+
+            if(methodName.equals("getMetaClass")
+                    && method.getReturnType().getName().equals("groovy.lang.MetaClass")){
+                continue;
+            }
+            if(methodName.equals("getSuppressed")
+                    && method.getDeclaringClass() == Throwable.class){
+                continue;
+            }
+
+            if(kotlin && isKotlinIgnore(clazz, methodName)){
+                continue;
+            }
+            /**
+             *  如果在属性或者方法上存在JSONField注解，并且定制了name属性，不以类上的propertyNamingStrategy设置为准，以此字段的JSONField的name定制为准。
+             */
+            Boolean fieldAnnotationAndNameExists = false;
+            JSONField annotation = TypeUtils.getAnnotation(method, JSONField.class);
+            if(annotation == null){
+                annotation = getSuperMethodAnnotation(clazz, method);
+            }
+            if(annotation == null && kotlin){
+                if(constructors == null){
+                    constructors = clazz.getDeclaredConstructors();
+                    Constructor creatorConstructor = TypeUtils.getKoltinConstructor(constructors);
+                    if(creatorConstructor != null){
+                        paramAnnotationArrays = TypeUtils.getParameterAnnotations(creatorConstructor);
+                        paramNames = TypeUtils.getKoltinConstructorParameters(clazz);
+                        if(paramNames != null){
+                            String[] paramNames_sorted = new String[paramNames.length];
+                            System.arraycopy(paramNames, 0, paramNames_sorted, 0, paramNames.length);
+
+                            Arrays.sort(paramNames_sorted);
+                            paramNameMapping = new short[paramNames.length];
+                            for(short p = 0; p < paramNames.length; p++){
+                                int index = Arrays.binarySearch(paramNames_sorted, paramNames[p]);
+                                paramNameMapping[index] = p;
+                            }
+                            paramNames = paramNames_sorted;
+                        }
+                    }
+                }
+                if(paramNames != null && paramNameMapping != null && methodName.startsWith("get")){
+                    String propertyName = decapitalize(methodName.substring(3));
+                    int p = Arrays.binarySearch(paramNames, propertyName);
+                    if (p < 0) {
+                        for (int i = 0; i < paramNames.length; i++) {
+                            if (propertyName.equalsIgnoreCase(paramNames[i])) {
+                                p = i;
+                                break;
+                            }
+                        }
+                    }
+                    if(p >= 0){
+                        short index = paramNameMapping[p];
+                        Annotation[] paramAnnotations = paramAnnotationArrays[index];
+                        if(paramAnnotations != null){
+                            for(Annotation paramAnnotation : paramAnnotations){
+                                if(paramAnnotation instanceof JSONField){
+                                    annotation = (JSONField) paramAnnotation;
+                                    break;
+                                }
+                            }
+                        }
+                        if(annotation == null){
+                            Field field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                            if(field != null){
+                                annotation = TypeUtils.getAnnotation(field, JSONField.class);
+                            }
+                        }
+                    }
+                }
+            }
+            if(annotation != null){
+                if(!annotation.serialize()){
+                    continue;
+                }
+                ordinal = annotation.ordinal();
+                serialzeFeatures = SerializerFeature.of(annotation.serialzeFeatures());
+                parserFeatures = Feature.of(annotation.parseFeatures());
+                if(annotation.name().length() != 0){
+                    String propertyName = annotation.name();
+                    if(aliasMap != null){
+                        propertyName = aliasMap.get(propertyName);
+                        if(propertyName == null){
+                            continue;
+                        }
+                    }
+                    FieldInfo fieldInfo = new FieldInfo(propertyName, method, null, clazz, null, ordinal,
+                            serialzeFeatures, parserFeatures, annotation, null, label);
+                    fieldInfoMap.put(propertyName, fieldInfo);
+                    continue;
+                }
+                if(annotation.label().length() != 0){
+                    label = annotation.label();
+                }
+            }
+            if(methodName.startsWith("get")){
+                if(methodName.length() < 4){
+                    continue;
+                }
+                if(methodName.equals("getClass")){
+                    continue;
+                }
+                if(methodName.equals("getDeclaringClass") && clazz.isEnum()){
+                    continue;
+                }
+                char c3 = methodName.charAt(3);
+                String propertyName;
+                Field field = null;
+                if(Character.isUpperCase(c3) //
+                        || c3 > 512 // for unicode method name
+                ){
+                    if(compatibleWithJavaBean){
+                        propertyName = decapitalize(methodName.substring(3));
+                    } else{
+                        propertyName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
+                    }
+                    propertyName = getPropertyNameByCompatibleFieldName(fieldCacheMap, methodName, propertyName, 3);
+                } else if(c3 == '_'){
+                    propertyName = methodName.substring(4);
+                    field = fieldCacheMap.get(propertyName);
+                    if (field == null) {
+                        String temp = propertyName;
+                        propertyName = methodName.substring(3);
+                        field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                        if (field == null) {
+                            propertyName = temp; //减少修改代码带来的影响
+                        }
+                    }
+                } else if(c3 == 'f'){
+                    propertyName = methodName.substring(3);
+                } else if(methodName.length() >= 5 && Character.isUpperCase(methodName.charAt(4))){
+                    propertyName = decapitalize(methodName.substring(3));
+                } else{
+                    propertyName = methodName.substring(3);
+                    field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                    if (field == null) {
+                        continue;
+                    }
+                }
+                boolean ignore = isJSONTypeIgnore(clazz, propertyName);
+                if(ignore){
+                    continue;
+                }
+
+                if (field == null) {
+                    // 假如bean的field很多的情况一下，轮询时将大大降低效率
+                    field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                }
+
+                if(field == null && propertyName.length() > 1){
+                    char ch = propertyName.charAt(1);
+                    if(ch >= 'A' && ch <= 'Z'){
+                        String javaBeanCompatiblePropertyName = decapitalize(methodName.substring(3));
+                        field = ParserConfig.getFieldFromCache(javaBeanCompatiblePropertyName, fieldCacheMap);
+                    }
+                }
+                JSONField fieldAnnotation = null;
+                if(field != null){
+                    fieldAnnotation = TypeUtils.getAnnotation(field, JSONField.class);
+                    if(fieldAnnotation != null){
+                        if(!fieldAnnotation.serialize()){
+                            continue;
+                        }
+                        ordinal = fieldAnnotation.ordinal();
+                        serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
+                        parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
+                        if(fieldAnnotation.name().length() != 0){
+                            fieldAnnotationAndNameExists = true;
+                            propertyName = fieldAnnotation.name();
+                            if(aliasMap != null){
+                                propertyName = aliasMap.get(propertyName);
+                                if(propertyName == null){
+                                    continue;
+                                }
+                            }
+                        }
+                        if(fieldAnnotation.label().length() != 0){
+                            label = fieldAnnotation.label();
+                        }
+                    }
+                }
+                if(aliasMap != null){
+                    propertyName = aliasMap.get(propertyName);
+                    if(propertyName == null){
+                        continue;
+                    }
+                }
+                if(propertyNamingStrategy != null && !fieldAnnotationAndNameExists){
+                    propertyName = propertyNamingStrategy.translate(propertyName);
+                }
+                FieldInfo fieldInfo = new FieldInfo(propertyName, method, field, clazz, null, ordinal, serialzeFeatures, parserFeatures,
+                        annotation, fieldAnnotation, label);
+                fieldInfoMap.put(propertyName, fieldInfo);
+            }
+            if(methodName.startsWith("is")){
+                if(methodName.length() < 3){
+                    continue;
+                }
+                if(method.getReturnType() != Boolean.TYPE
+                        && method.getReturnType() != Boolean.class){
+                    continue;
+                }
+                char c2 = methodName.charAt(2);
+                String propertyName;
+                Field field = null;
+                if(Character.isUpperCase(c2)){
+                    if(compatibleWithJavaBean){
+                        propertyName = decapitalize(methodName.substring(2));
+                    } else{
+                        propertyName = Character.toLowerCase(methodName.charAt(2)) + methodName.substring(3);
+                    }
+                    propertyName = getPropertyNameByCompatibleFieldName(fieldCacheMap, methodName, propertyName, 2);
+                } else if(c2 == '_'){
+                    propertyName = methodName.substring(3);
+                    field = fieldCacheMap.get(propertyName);
+                    if (field == null) {
+                        String temp = propertyName;
+                        propertyName = methodName.substring(2);
+                        field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                        if (field == null) {
+                            propertyName = temp;
+                        }
+                    }
+                } else if(c2 == 'f'){
+                    propertyName = methodName.substring(2);
+                } else{
+                    propertyName = methodName.substring(2);
+                    field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                    if (field == null) {
+                        continue;
+                    }
+                }
+                boolean ignore = isJSONTypeIgnore(clazz, propertyName);
+                if(ignore){
+                    continue;
+                }
+
+                if(field == null) {
+                    field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
+                }
+
+                if(field == null){
+                    field = ParserConfig.getFieldFromCache(methodName, fieldCacheMap);
+                }
+                JSONField fieldAnnotation = null;
+                if(field != null){
+                    fieldAnnotation = TypeUtils.getAnnotation(field, JSONField.class);
+                    if(fieldAnnotation != null){
+                        if(!fieldAnnotation.serialize()){
+                            continue;
+                        }
+                        ordinal = fieldAnnotation.ordinal();
+                        serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
+                        parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
+                        if(fieldAnnotation.name().length() != 0){
+                            propertyName = fieldAnnotation.name();
+                            if(aliasMap != null){
+                                propertyName = aliasMap.get(propertyName);
+                                if(propertyName == null){
+                                    continue;
+                                }
+                            }
+                        }
+                        if(fieldAnnotation.label().length() != 0){
+                            label = fieldAnnotation.label();
+                        }
+                    }
+                }
+                if(aliasMap != null){
+                    propertyName = aliasMap.get(propertyName);
+                    if(propertyName == null){
+                        continue;
+                    }
+                }
+                if(propertyNamingStrategy != null){
+                    propertyName = propertyNamingStrategy.translate(propertyName);
+                }
+                //优先选择get
+                if(fieldInfoMap.containsKey(propertyName)){
+                    continue;
+                }
+                FieldInfo fieldInfo = new FieldInfo(propertyName, method, field, clazz, null, ordinal, serialzeFeatures, parserFeatures,
+                        annotation, fieldAnnotation, label);
+                fieldInfoMap.put(propertyName, fieldInfo);
+            }
+        }
+        Field[] fields = clazz.getFields();
+        computeFields(clazz, aliasMap, propertyNamingStrategy, fieldInfoMap, fields);
+        return getFieldInfos(clazz, sorted, fieldInfoMap);
+    }
+
+    private static List<FieldInfo> getFieldInfos(Class<?> clazz, boolean sorted, Map<String,FieldInfo> fieldInfoMap){
+        List<FieldInfo> fieldInfoList = new ArrayList<FieldInfo>();
+        String[] orders = null;
+        JSONType annotation = TypeUtils.getAnnotation(clazz,JSONType.class);
+        if(annotation != null){
+            orders = annotation.orders();
+        }
+        if(orders != null && orders.length > 0){
+            LinkedHashMap<String,FieldInfo> map = new LinkedHashMap<String,FieldInfo>(fieldInfoList.size());
+            for(FieldInfo field : fieldInfoMap.values()){
+                map.put(field.name, field);
+            }
+            int i = 0;
+            for(String item : orders){
+                FieldInfo field = map.get(item);
+                if(field != null){
+                    fieldInfoList.add(field);
+                    map.remove(item);
+                }
+            }
+            for(FieldInfo field : map.values()){
+                fieldInfoList.add(field);
+            }
+        } else{
+            for(FieldInfo fieldInfo : fieldInfoMap.values()){
+                fieldInfoList.add(fieldInfo);
+            }
+            if(sorted){
+                Collections.sort(fieldInfoList);
+            }
+        }
+        return fieldInfoList;
+    }
+
+    private static void computeFields(
+            Class<?> clazz, //
+            Map<String,String> aliasMap, //
+            PropertyNamingStrategy propertyNamingStrategy, //
+            Map<String,FieldInfo> fieldInfoMap, //
+            Field[] fields){
+        for(Field field : fields){
+            if(Modifier.isStatic(field.getModifiers())){
+                continue;
+            }
+            JSONField fieldAnnotation = TypeUtils.getAnnotation(field, JSONField.class);
+            int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
+            String propertyName = field.getName();
+            String label = null;
+            if(fieldAnnotation != null){
+                if(!fieldAnnotation.serialize()){
+                    continue;
+                }
+                ordinal = fieldAnnotation.ordinal();
+                serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
+                parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
+                if(fieldAnnotation.name().length() != 0){
+                    propertyName = fieldAnnotation.name();
+                }
+                if(fieldAnnotation.label().length() != 0){
+                    label = fieldAnnotation.label();
+                }
+            }
+            if(aliasMap != null){
+                propertyName = aliasMap.get(propertyName);
+                if(propertyName == null){
+                    continue;
+                }
+            }
+            if(propertyNamingStrategy != null){
+                propertyName = propertyNamingStrategy.translate(propertyName);
+            }
+            if(!fieldInfoMap.containsKey(propertyName)){
+                FieldInfo fieldInfo = new FieldInfo(propertyName, null, field, clazz, null, ordinal, serialzeFeatures, parserFeatures,
+                        null, fieldAnnotation, label);
+                fieldInfoMap.put(propertyName, fieldInfo);
+            }
+        }
+    }
+
+    private static String getPropertyNameByCompatibleFieldName(Map<String,Field> fieldCacheMap, String methodName,
+                                                               String propertyName, int fromIdx){
+        if(compatibleWithFieldName){
+            if(!fieldCacheMap.containsKey(propertyName)){
+                String tempPropertyName = methodName.substring(fromIdx);
+                return fieldCacheMap.containsKey(tempPropertyName) ? tempPropertyName : propertyName;
+            }
+        }
+        return propertyName;
+    }
+
+    public static JSONField getSuperMethodAnnotation(final Class<?> clazz, final Method method){
+        Class<?>[] interfaces = clazz.getInterfaces();
+        if(interfaces.length > 0){
+            Class<?>[] types = method.getParameterTypes();
+            for(Class<?> interfaceClass : interfaces){
+                for(Method interfaceMethod : interfaceClass.getMethods()){
+                    Class<?>[] interfaceTypes = interfaceMethod.getParameterTypes();
+                    if(interfaceTypes.length != types.length){
+                        continue;
+                    }
+                    if(!interfaceMethod.getName().equals(method.getName())){
+                        continue;
+                    }
+                    boolean match = true;
+                    for(int i = 0; i < types.length; ++i){
+                        if(!interfaceTypes[i].equals(types[i])){
+                            match = false;
+                            break;
+                        }
+                    }
+                    if(!match){
+                        continue;
+                    }
+                    JSONField annotation = TypeUtils.getAnnotation(interfaceMethod, JSONField.class);
+                    if(annotation != null){
+                        return annotation;
+                    }
+                }
+            }
+        }
+        Class<?> superClass = clazz.getSuperclass();
+        if(superClass == null){
+            return null;
+        }
+        if(Modifier.isAbstract(superClass.getModifiers())){
+            Class<?>[] types = method.getParameterTypes();
+            for(Method interfaceMethod : superClass.getMethods()){
+                Class<?>[] interfaceTypes = interfaceMethod.getParameterTypes();
+                if(interfaceTypes.length != types.length){
+                    continue;
+                }
+                if(!interfaceMethod.getName().equals(method.getName())){
+                    continue;
+                }
+                boolean match = true;
+                for(int i = 0; i < types.length; ++i){
+                    if(!interfaceTypes[i].equals(types[i])){
+                        match = false;
+                        break;
+                    }
+                }
+                if(!match){
+                    continue;
+                }
+                JSONField annotation = TypeUtils.getAnnotation(interfaceMethod, JSONField.class);
+                if(annotation != null){
+                    return annotation;
+                }
+            }
+        }
+        return null;
+    }
+
+    private static boolean isJSONTypeIgnore(Class<?> clazz, String propertyName){
+        JSONType jsonType = TypeUtils.getAnnotation(clazz,JSONType.class);
+        if(jsonType != null){
+            // 1、新增 includes 支持，如果 JSONType 同时设置了includes 和 ignores 属性，则以includes为准。
+            // 2、个人认为对于大小写敏感的Java和JS而言，使用 equals() 比 equalsIgnoreCase() 更好，改动的唯一风险就是向后兼容性的问题
+            // 不过，相信开发者应该都是严格按照大小写敏感的方式进行属性设置的
+            String[] fields = jsonType.includes();
+            if(fields.length > 0){
+                for(int i = 0; i < fields.length; i++){
+                    if(propertyName.equals(fields[i])){
+                        return false;
+                    }
+                }
+                return true;
+            } else{
+                fields = jsonType.ignores();
+                for(int i = 0; i < fields.length; i++){
+                    if(propertyName.equals(fields[i])){
+                        return true;
+                    }
+                }
+            }
+        }
+        if(clazz.getSuperclass() != Object.class && clazz.getSuperclass() != null){
+            return isJSONTypeIgnore(clazz.getSuperclass(), propertyName);
+        }
+        return false;
+    }
+
+    public static boolean isGenericParamType(Type type){
+        if(type instanceof ParameterizedType){
+            return true;
+        }
+        if(type instanceof Class) {
+            Type superType = ((Class<?>) type).getGenericSuperclass();
+            return superType != Object.class && isGenericParamType(superType);
+        }
+        return false;
+    }
+
+    public static Type getGenericParamType(Type type){
+        if(type instanceof ParameterizedType){
+            return type;
+        }
+        if(type instanceof Class){
+            return getGenericParamType(((Class<?>) type).getGenericSuperclass());
+        }
+        return type;
+    }
+
+    public static Type unwrapOptional(Type type){
+        if(!optionalClassInited){
+            try{
+                optionalClass = Class.forName("java.util.Optional");
+            } catch(Exception e){
+                // skip
+            } finally{
+                optionalClassInited = true;
+            }
+        }
+        if(type instanceof ParameterizedType){
+            ParameterizedType parameterizedType = (ParameterizedType) type;
+            if(parameterizedType.getRawType() == optionalClass){
+                return parameterizedType.getActualTypeArguments()[0];
+            }
+        }
+        return type;
+    }
+
+    public static Class<?> getClass(Type type){
+        if(type.getClass() == Class.class){
+            return (Class<?>) type;
+        }
+
+        if(type instanceof ParameterizedType){
+            return getClass(((ParameterizedType) type).getRawType());
+        }
+
+        if(type instanceof TypeVariable){
+            Type boundType = ((TypeVariable<?>) type).getBounds()[0];
+            if (boundType instanceof Class) {
+                return (Class) boundType;
+            }
+            return getClass(boundType);
+        }
+
+        if(type instanceof WildcardType){
+            Type[] upperBounds = ((WildcardType) type).getUpperBounds();
+            if (upperBounds.length == 1) {
+                return getClass(upperBounds[0]);
+            }
+        }
+
+        return Object.class;
+    }
+
+    public static Field getField(Class<?> clazz, String fieldName, Field[] declaredFields){
+        for(Field field : declaredFields){
+            String itemName = field.getName();
+            if(fieldName.equals(itemName)){
+                return field;
+            }
+
+            char c0, c1;
+            if (fieldName.length() > 2
+                    && (c0 = fieldName.charAt(0)) >= 'a' && c0 <= 'z'
+                    && (c1 = fieldName.charAt(1)) >= 'A' && c1 <= 'Z'
+                    && fieldName.equalsIgnoreCase(itemName)) {
+                return field;
+            }
+        }
+        Class<?> superClass = clazz.getSuperclass();
+        if(superClass != null && superClass != Object.class){
+            return getField(superClass, fieldName, superClass.getDeclaredFields());
+        }
+        return null;
+    }
+
+    /**
+     * @deprecated
+     */
+    public static int getSerializeFeatures(Class<?> clazz){
+        JSONType annotation = TypeUtils.getAnnotation(clazz,JSONType.class);
+        if(annotation == null){
+            return 0;
+        }
+        return SerializerFeature.of(annotation.serialzeFeatures());
+    }
+
+    public static int getParserFeatures(Class<?> clazz){
+        JSONType annotation = TypeUtils.getAnnotation(clazz,JSONType.class);
+        if(annotation == null){
+            return 0;
+        }
+        return Feature.of(annotation.parseFeatures());
+    }
+
+    public static String decapitalize(String name){
+        if(name == null || name.length() == 0){
+            return name;
+        }
+        if(name.length() > 1 && Character.isUpperCase(name.charAt(1)) && Character.isUpperCase(name.charAt(0))){
+            return name;
+        }
+        char[] chars = name.toCharArray();
+        chars[0] = Character.toLowerCase(chars[0]);
+        return new String(chars);
+    }
+
+    static void setAccessible(AccessibleObject obj){
+        if(!setAccessibleEnable){
+            return;
+        }
+        if(obj.isAccessible()){
+            return;
+        }
+        try{
+            obj.setAccessible(true);
+        } catch(AccessControlException error){
+            setAccessibleEnable = false;
+        }
+    }
+
+    public static Type getCollectionItemType(Type fieldType) {
+        if (fieldType instanceof ParameterizedType) {
+            return getCollectionItemType((ParameterizedType) fieldType);
+        }
+        if (fieldType instanceof Class<?>) {
+            return getCollectionItemType((Class<?>) fieldType);
+        }
+        return Object.class;
+    }
+
+    private static Type getCollectionItemType(Class<?> clazz) {
+        return clazz.getName().startsWith("java.")
+                ? Object.class
+                : getCollectionItemType(getCollectionSuperType(clazz));
+    }
+
+    private static Type getCollectionItemType(ParameterizedType parameterizedType) {
+        Type rawType = parameterizedType.getRawType();
+        Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
+        if (rawType == Collection.class) {
+            return getWildcardTypeUpperBounds(actualTypeArguments[0]);
+        }
+        Class<?> rawClass = (Class<?>) rawType;
+        Map<TypeVariable, Type> actualTypeMap = createActualTypeMap(rawClass.getTypeParameters(), actualTypeArguments);
+        Type superType = getCollectionSuperType(rawClass);
+        if (superType instanceof ParameterizedType) {
+            Class<?> superClass = getRawClass(superType);
+            Type[] superClassTypeParameters = ((ParameterizedType) superType).getActualTypeArguments();
+            return superClassTypeParameters.length > 0
+                    ? getCollectionItemType(makeParameterizedType(superClass, superClassTypeParameters, actualTypeMap))
+                    : getCollectionItemType(superClass);
+        }
+        return getCollectionItemType((Class<?>) superType);
+    }
+
+    private static Type getCollectionSuperType(Class<?> clazz) {
+        Type assignable = null;
+        for (Type type : clazz.getGenericInterfaces()) {
+            Class<?> rawClass = getRawClass(type);
+            if (rawClass == Collection.class) {
+                return type;
+            }
+            if (Collection.class.isAssignableFrom(rawClass)) {
+                assignable = type;
+            }
+        }
+        return assignable == null ? clazz.getGenericSuperclass() : assignable;
+    }
+
+    private static Map<TypeVariable, Type> createActualTypeMap(TypeVariable[] typeParameters, Type[] actualTypeArguments) {
+        int length = typeParameters.length;
+        Map<TypeVariable, Type> actualTypeMap = new HashMap<TypeVariable, Type>(length);
+        for (int i = 0; i < length; i++) {
+            actualTypeMap.put(typeParameters[i], actualTypeArguments[i]);
+        }
+        return actualTypeMap;
+    }
+
+    private static ParameterizedType makeParameterizedType(Class<?> rawClass, Type[] typeParameters, Map<TypeVariable, Type> actualTypeMap) {
+        int length = typeParameters.length;
+        Type[] actualTypeArguments = new Type[length];
+        for (int i = 0; i < length; i++) {
+            actualTypeArguments[i] = getActualType(typeParameters[i], actualTypeMap);
+        }
+        return new ParameterizedTypeImpl(actualTypeArguments, null, rawClass);
+    }
+
+    private static Type getActualType(Type typeParameter, Map<TypeVariable, Type> actualTypeMap) {
+        if (typeParameter instanceof TypeVariable) {
+            return actualTypeMap.get(typeParameter);
+        } else if (typeParameter instanceof ParameterizedType) {
+            return makeParameterizedType(getRawClass(typeParameter), ((ParameterizedType) typeParameter).getActualTypeArguments(), actualTypeMap);
+        } else if (typeParameter instanceof GenericArrayType) {
+            return new GenericArrayTypeImpl(getActualType(((GenericArrayType) typeParameter).getGenericComponentType(), actualTypeMap));
+        }
+        return typeParameter;
+    }
+
+    private static Type getWildcardTypeUpperBounds(Type type) {
+        if (type instanceof WildcardType) {
+            WildcardType wildcardType = (WildcardType) type;
+            Type[] upperBounds = wildcardType.getUpperBounds();
+            return upperBounds.length > 0 ? upperBounds[0] : Object.class;
+        }
+        return type;
+    }
+
+    public static Class<?> getCollectionItemClass(Type fieldType){
+        if(fieldType instanceof ParameterizedType){
+            Class<?> itemClass;
+            Type actualTypeArgument = ((ParameterizedType) fieldType).getActualTypeArguments()[0];
+            if(actualTypeArgument instanceof WildcardType){
+                WildcardType wildcardType = (WildcardType) actualTypeArgument;
+                Type[] upperBounds = wildcardType.getUpperBounds();
+                if(upperBounds.length == 1){
+                    actualTypeArgument = upperBounds[0];
+                }
+            }
+            if(actualTypeArgument instanceof Class){
+                itemClass = (Class<?>) actualTypeArgument;
+                if(!Modifier.isPublic(itemClass.getModifiers())){
+                    throw new JSONException("can not create ASMParser");
+                }
+            } else{
+                throw new JSONException("can not create ASMParser");
+            }
+            return itemClass;
+        }
+        return Object.class;
+    }
+
+    public static Type checkPrimitiveArray(GenericArrayType genericArrayType) {
+        Type clz = genericArrayType;
+        Type genericComponentType  = genericArrayType.getGenericComponentType();
+
+        String prefix = "[";
+        while (genericComponentType instanceof GenericArrayType) {
+            genericComponentType = ((GenericArrayType) genericComponentType)
+                    .getGenericComponentType();
+            prefix += prefix;
+        }
+
+        if (genericComponentType instanceof Class<?>) {
+            Class<?> ck = (Class<?>) genericComponentType;
+            if (ck.isPrimitive()) {
+                try {
+                    if (ck == boolean.class) {
+                        clz = Class.forName(prefix + "Z");
+                    } else if (ck == char.class) {
+                        clz = Class.forName(prefix + "C");
+                    } else if (ck == byte.class) {
+                        clz = Class.forName(prefix + "B");
+                    } else if (ck == short.class) {
+                        clz = Class.forName(prefix + "S");
+                    } else if (ck == int.class) {
+                        clz = Class.forName(prefix + "I");
+                    } else if (ck == long.class) {
+                        clz = Class.forName(prefix + "J");
+                    } else if (ck == float.class) {
+                        clz = Class.forName(prefix + "F");
+                    } else if (ck == double.class) {
+                        clz = Class.forName(prefix + "D");
+                    }
+                } catch (ClassNotFoundException e) {
+                }
+            }
+        }
+
+        return clz;
+    }
+
+    @SuppressWarnings({"rawtypes", "unchecked"})
+    public static Collection createCollection(Type type) {
+        Class<?> rawClass = getRawClass(type);
+        Collection list;
+        if(rawClass == AbstractCollection.class //
+                || rawClass == Collection.class){
+            list = new ArrayList();
+        } else if(rawClass.isAssignableFrom(HashSet.class)){
+            list = new HashSet();
+        } else if(rawClass.isAssignableFrom(LinkedHashSet.class)){
+            list = new LinkedHashSet();
+        } else if(rawClass.isAssignableFrom(TreeSet.class)){
+            list = new TreeSet();
+        } else if(rawClass.isAssignableFrom(ArrayList.class)){
+            list = new ArrayList();
+        } else if(rawClass.isAssignableFrom(EnumSet.class)){
+            Type itemType;
+            if(type instanceof ParameterizedType){
+                itemType = ((ParameterizedType) type).getActualTypeArguments()[0];
+            } else{
+                itemType = Object.class;
+            }
+            list = EnumSet.noneOf((Class<Enum>) itemType);
+        } else if(rawClass.isAssignableFrom(Queue.class)){
+            list = new LinkedList();
+        } else{
+            try{
+                list = (Collection) rawClass.newInstance();
+            } catch(Exception e){
+                throw new JSONException("create instance error, class " + rawClass.getName());
+            }
+        }
+        return list;
+    }
+
+    public static Class<?> getRawClass(Type type){
+        if(type instanceof Class<?>){
+            return (Class<?>) type;
+        } else if(type instanceof ParameterizedType){
+            return getRawClass(((ParameterizedType) type).getRawType());
+        } else{
+            throw new JSONException("TODO");
+        }
+    }
+
+    public static boolean isProxy(Class<?> clazz){
+        for(Class<?> item : clazz.getInterfaces()){
+            String interfaceName = item.getName();
+            if(interfaceName.equals("net.sf.cglib.proxy.Factory") //
+                    || interfaceName.equals("org.springframework.cglib.proxy.Factory")){
+                return true;
+            }
+            if(interfaceName.equals("javassist.util.proxy.ProxyObject") //
+                    || interfaceName.equals("org.apache.ibatis.javassist.util.proxy.ProxyObject")
+            ){
+                return true;
+            }
+            if (interfaceName.equals("org.hibernate.proxy.HibernateProxy")) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static boolean isTransient(Method method){
+        if(method == null){
+            return false;
+        }
+        if(!transientClassInited){
+            try{
+                transientClass = (Class<? extends Annotation>) Class.forName("java.beans.Transient");
+            } catch(Exception e){
+                // skip
+            } finally{
+                transientClassInited = true;
+            }
+        }
+        if(transientClass != null){
+            Annotation annotation = TypeUtils.getAnnotation(method, transientClass);
+            return annotation != null;
+        }
+        return false;
+    }
+
+    public static boolean isAnnotationPresentOneToMany(Method method) {
+        if (method == null) {
+            return false;
+        }
+
+        if (class_OneToMany == null && !class_OneToMany_error) {
+            try {
+                class_OneToMany = (Class<? extends Annotation>) Class.forName("javax.persistence.OneToMany");
+            } catch (Throwable e) {
+                // skip
+                class_OneToMany_error = true;
+            }
+        }
+        return class_OneToMany != null && method.isAnnotationPresent(class_OneToMany);
+
+    }
+
+    public static boolean isAnnotationPresentManyToMany(Method method) {
+        if (method == null) {
+            return false;
+        }
+
+        if (class_ManyToMany == null && !class_ManyToMany_error) {
+            try {
+                class_ManyToMany = (Class<? extends Annotation>) Class.forName("javax.persistence.ManyToMany");
+            } catch (Throwable e) {
+                // skip
+                class_ManyToMany_error = true;
+            }
+        }
+        return class_ManyToMany != null && (method.isAnnotationPresent(class_OneToMany) || method.isAnnotationPresent(class_ManyToMany));
+
+    }
+
+    public static boolean isHibernateInitialized(Object object){
+        if(object == null){
+            return false;
+        }
+        if(method_HibernateIsInitialized == null && !method_HibernateIsInitialized_error){
+            try{
+                Class<?> class_Hibernate = Class.forName("org.hibernate.Hibernate");
+                method_HibernateIsInitialized = class_Hibernate.getMethod("isInitialized", Object.class);
+            } catch(Throwable e){
+                // skip
+                method_HibernateIsInitialized_error = true;
+            }
+        }
+        if(method_HibernateIsInitialized != null){
+            try{
+                Boolean initialized = (Boolean) method_HibernateIsInitialized.invoke(null, object);
+                return initialized.booleanValue();
+            } catch(Throwable e){
+                // skip
+            }
+        }
+        return true;
+    }
+
+    public static double parseDouble(String str) {
+        final int len = str.length();
+        if (len > 10) {
+            return Double.parseDouble(str);
+        }
+
+        boolean negative = false;
+
+        long longValue = 0;
+        int scale = 0;
+        for (int i = 0; i < len; ++i) {
+            char ch = str.charAt(i);
+            if (ch == '-' && i == 0) {
+                negative = true;
+                continue;
+            }
+
+            if (ch == '.') {
+                if (scale != 0) {
+                    return Double.parseDouble(str);
+                }
+                scale = len - i - 1;
+                continue;
+            }
+
+            if (ch >= '0' && ch <= '9') {
+                int digit = ch - '0';
+                longValue = longValue * 10 + digit;
+            } else {
+                return Double.parseDouble(str);
+            }
+        }
+
+        if (negative) {
+            longValue = -longValue;
+        }
+
+        switch (scale) {
+            case 0:
+                return (double) longValue;
+            case 1:
+                return ((double) longValue) / 10;
+            case 2:
+                return ((double) longValue) / 100;
+            case 3:
+                return ((double) longValue) / 1000;
+            case 4:
+                return ((double) longValue) / 10000;
+            case 5:
+                return ((double) longValue) / 100000;
+            case 6:
+                return ((double) longValue) / 1000000;
+            case 7:
+                return ((double) longValue) / 10000000;
+            case 8:
+                return ((double) longValue) / 100000000;
+            case 9:
+                return ((double) longValue) / 1000000000;
+        }
+
+        return Double.parseDouble(str);
+    }
+
+    public static float parseFloat(String str) {
+        final int len = str.length();
+        if (len >= 10) {
+            return Float.parseFloat(str);
+        }
+
+        boolean negative = false;
+
+        long longValue = 0;
+        int scale = 0;
+        for (int i = 0; i < len; ++i) {
+            char ch = str.charAt(i);
+            if (ch == '-' && i == 0) {
+                negative = true;
+                continue;
+            }
+
+            if (ch == '.') {
+                if (scale != 0) {
+                    return Float.parseFloat(str);
+                }
+                scale = len - i - 1;
+                continue;
+            }
+
+            if (ch >= '0' && ch <= '9') {
+                int digit = ch - '0';
+                longValue = longValue * 10 + digit;
+            } else {
+                return Float.parseFloat(str);
+            }
+        }
+
+        if (negative) {
+            longValue = -longValue;
+        }
+
+        switch (scale) {
+            case 0:
+                return (float) longValue;
+            case 1:
+                return ((float) longValue) / 10;
+            case 2:
+                return ((float) longValue) / 100;
+            case 3:
+                return ((float) longValue) / 1000;
+            case 4:
+                return ((float) longValue) / 10000;
+            case 5:
+                return ((float) longValue) / 100000;
+            case 6:
+                return ((float) longValue) / 1000000;
+            case 7:
+                return ((float) longValue) / 10000000;
+            case 8:
+                return ((float) longValue) / 100000000;
+            case 9:
+                return ((float) longValue) / 1000000000;
+        }
+
+        return Float.parseFloat(str);
+    }
+
+    public static long fnv1a_64_lower(String key){
+        long hashCode = 0xcbf29ce484222325L;
+        for(int i = 0; i < key.length(); ++i){
+            char ch = key.charAt(i);
+            if(ch == '_' || ch == '-'){
+                continue;
+            }
+            if(ch >= 'A' && ch <= 'Z'){
+                ch = (char) (ch + 32);
+            }
+            hashCode ^= ch;
+            hashCode *= 0x100000001b3L;
+        }
+        return hashCode;
+    }
+
+    public static long fnv1a_64(String key){
+        long hashCode = 0xcbf29ce484222325L;
+        for(int i = 0; i < key.length(); ++i){
+            char ch = key.charAt(i);
+            hashCode ^= ch;
+            hashCode *= 0x100000001b3L;
+        }
+        return hashCode;
+    }
+
+    public static boolean isKotlin(Class clazz) {
+        if (kotlin_metadata == null && !kotlin_metadata_error) {
+            try {
+                kotlin_metadata = Class.forName("kotlin.Metadata");
+            } catch (Throwable e) {
+                kotlin_metadata_error = true;
+            }
+        }
+        return kotlin_metadata != null && clazz.isAnnotationPresent(kotlin_metadata);
+    }
+
+    public static Constructor getKoltinConstructor(Constructor[] constructors){
+        return getKoltinConstructor(constructors, null);
+    }
+
+    public static Constructor getKoltinConstructor(Constructor[] constructors, String[] paramNames){
+        Constructor creatorConstructor = null;
+        for(Constructor<?> constructor : constructors){
+            Class<?>[] parameterTypes = constructor.getParameterTypes();
+            if (paramNames != null && parameterTypes.length != paramNames.length) {
+                continue;
+            }
+
+            if(parameterTypes.length > 0 && parameterTypes[parameterTypes.length - 1].getName().equals("kotlin.jvm.internal.DefaultConstructorMarker")){
+                continue;
+            }
+            if(creatorConstructor != null && creatorConstructor.getParameterTypes().length >= parameterTypes.length){
+                continue;
+            }
+            creatorConstructor = constructor;
+        }
+        return creatorConstructor;
+    }
+
+    public static String[] getKoltinConstructorParameters(Class clazz){
+        if(kotlin_kclass_constructor == null && !kotlin_class_klass_error){
+            try{
+                Class class_kotlin_kclass = Class.forName("kotlin.reflect.jvm.internal.KClassImpl");
+                kotlin_kclass_constructor = class_kotlin_kclass.getConstructor(Class.class);
+            } catch(Throwable e){
+                kotlin_class_klass_error = true;
+            }
+        }
+        if (kotlin_kclass_constructor == null){
+            return null;
+        }
+
+        if (kotlin_kclass_getConstructors == null && !kotlin_class_klass_error) {
+            try{
+                Class class_kotlin_kclass = Class.forName("kotlin.reflect.jvm.internal.KClassImpl");
+                kotlin_kclass_getConstructors = class_kotlin_kclass.getMethod("getConstructors");
+            } catch(Throwable e){
+                kotlin_class_klass_error = true;
+            }
+        }
+
+        if (kotlin_kfunction_getParameters == null && !kotlin_class_klass_error) {
+            try{
+                Class class_kotlin_kfunction = Class.forName("kotlin.reflect.KFunction");
+                kotlin_kfunction_getParameters = class_kotlin_kfunction.getMethod("getParameters");
+            } catch(Throwable e){
+                kotlin_class_klass_error = true;
+            }
+        }
+
+        if (kotlin_kparameter_getName == null && !kotlin_class_klass_error) {
+            try{
+                Class class_kotlinn_kparameter = Class.forName("kotlin.reflect.KParameter");
+                kotlin_kparameter_getName = class_kotlinn_kparameter.getMethod("getName");
+            } catch(Throwable e){
+                kotlin_class_klass_error = true;
+            }
+        }
+
+        if (kotlin_error){
+            return null;
+        }
+
+        try{
+            Object constructor = null;
+            Object kclassImpl = kotlin_kclass_constructor.newInstance(clazz);
+            Iterable it = (Iterable) kotlin_kclass_getConstructors.invoke(kclassImpl);
+            for(Iterator iterator = it.iterator(); iterator.hasNext(); iterator.hasNext()){
+                Object item = iterator.next();
+                List parameters = (List) kotlin_kfunction_getParameters.invoke(item);
+                if (constructor != null && parameters.size() == 0) {
+                    continue;
+                }
+                constructor = item;
+            }
+            List parameters = (List) kotlin_kfunction_getParameters.invoke(constructor);
+            String[] names = new String[parameters.size()];
+            for(int i = 0; i < parameters.size(); i++){
+                Object param = parameters.get(i);
+                names[i] = (String) kotlin_kparameter_getName.invoke(param);
+            }
+            return names;
+        } catch(Throwable e){
+            e.printStackTrace();
+            kotlin_error = true;
+        }
+        return null;
+    }
+
+    private static boolean isKotlinIgnore(Class clazz, String methodName) {
+        if (kotlinIgnores == null && !kotlinIgnores_error) {
+            try {
+                Map<Class, String[]> map = new HashMap<Class, String[]>();
+                Class charRangeClass = Class.forName("kotlin.ranges.CharRange");
+                map.put(charRangeClass, new String[]{"getEndInclusive", "isEmpty"});
+                Class intRangeClass = Class.forName("kotlin.ranges.IntRange");
+                map.put(intRangeClass, new String[]{"getEndInclusive", "isEmpty"});
+                Class longRangeClass = Class.forName("kotlin.ranges.LongRange");
+                map.put(longRangeClass, new String[]{"getEndInclusive", "isEmpty"});
+                Class floatRangeClass = Class.forName("kotlin.ranges.ClosedFloatRange");
+                map.put(floatRangeClass, new String[]{"getEndInclusive", "isEmpty"});
+                Class doubleRangeClass = Class.forName("kotlin.ranges.ClosedDoubleRange");
+                map.put(doubleRangeClass, new String[]{"getEndInclusive", "isEmpty"});
+                kotlinIgnores = map;
+            } catch (Throwable error) {
+                kotlinIgnores_error = true;
+            }
+        }
+        if (kotlinIgnores == null) {
+            return false;
+        }
+        String[] ignores = kotlinIgnores.get(clazz);
+        return ignores != null && Arrays.binarySearch(ignores, methodName) >= 0;
+    }
+
+    public static <A extends Annotation> A getAnnotation(Class<?> targetClass, Class<A> annotationClass){
+        A targetAnnotation = targetClass.getAnnotation(annotationClass);
+
+        Class<?> mixInClass = null;
+        Type type = JSON.getMixInAnnotations(targetClass);
+        if (type instanceof Class<?>) {
+            mixInClass = (Class<?>) type;
+        }
+
+        if(mixInClass != null) {
+            A mixInAnnotation = mixInClass.getAnnotation(annotationClass);
+            if(mixInAnnotation == null && mixInClass.getAnnotations().length > 0){
+                for(Annotation annotation : mixInClass.getAnnotations()){
+                    mixInAnnotation = annotation.annotationType().getAnnotation(annotationClass);
+                    if(mixInAnnotation != null){
+                        break;
+                    }
+                }
+            }
+            if (mixInAnnotation != null) {
+                return mixInAnnotation;
+            }
+        }
+
+        if(targetAnnotation == null && targetClass.getAnnotations().length > 0){
+            for(Annotation annotation : targetClass.getAnnotations()){
+                targetAnnotation = annotation.annotationType().getAnnotation(annotationClass);
+                if(targetAnnotation != null){
+                    break;
+                }
+            }
+        }
+        return targetAnnotation;
+    }
+
+    public static <A extends Annotation> A getAnnotation(Field field, Class<A> annotationClass){
+        A targetAnnotation = field.getAnnotation(annotationClass);
+
+        Class<?> clazz = field.getDeclaringClass();
+        A mixInAnnotation;
+        Class<?> mixInClass = null;
+        Type type = JSON.getMixInAnnotations(clazz);
+        if (type instanceof Class<?>) {
+            mixInClass = (Class<?>) type;
+        }
+
+        if (mixInClass != null) {
+            Field mixInField = null;
+            String fieldName = field.getName();
+            // 递归从MixIn类的父类中查找注解（如果有父类的话）
+            for (Class<?> currClass = mixInClass; currClass != null && currClass != Object.class;
+                 currClass = currClass.getSuperclass()) {
+                try {
+                    mixInField = currClass.getDeclaredField(fieldName);
+                    break;
+                } catch (NoSuchFieldException e) {
+                    // skip
+                }
+            }
+            if (mixInField == null) {
+                return targetAnnotation;
+            }
+            mixInAnnotation = mixInField.getAnnotation(annotationClass);
+            if (mixInAnnotation != null) {
+                return mixInAnnotation;
+            }
+        }
+        return targetAnnotation;
+    }
+
+    public static <A extends Annotation> A getAnnotation(Method method, Class<A> annotationClass){
+        A targetAnnotation = method.getAnnotation(annotationClass);
+
+        Class<?> clazz = method.getDeclaringClass();
+        A mixInAnnotation;
+        Class<?> mixInClass = null;
+        Type type = JSON.getMixInAnnotations(clazz);
+        if (type instanceof Class<?>) {
+            mixInClass = (Class<?>) type;
+        }
+
+        if (mixInClass != null) {
+            Method mixInMethod = null;
+            String methodName = method.getName();
+            Class<?>[] parameterTypes = method.getParameterTypes();
+            // 递归从MixIn类的父类中查找注解（如果有父类的话）
+            for (Class<?> currClass = mixInClass; currClass != null && currClass != Object.class;
+                 currClass = currClass.getSuperclass()) {
+                try {
+                    mixInMethod = currClass.getDeclaredMethod(methodName, parameterTypes);
+                    break;
+                } catch (NoSuchMethodException e) {
+                    // skip
+                }
+            }
+            if (mixInMethod == null) {
+                return targetAnnotation;
+            }
+            mixInAnnotation = mixInMethod.getAnnotation(annotationClass);
+            if (mixInAnnotation != null) {
+                return mixInAnnotation;
+            }
+        }
+        return targetAnnotation;
+    }
+
+    public static Annotation[][] getParameterAnnotations(Method method){
+        Annotation[][] targetAnnotations = method.getParameterAnnotations();
+
+        Class<?> clazz = method.getDeclaringClass();
+        Annotation[][] mixInAnnotations;
+        Class<?> mixInClass = null;
+        Type type = JSON.getMixInAnnotations(clazz);
+        if (type instanceof Class<?>) {
+            mixInClass = (Class<?>) type;
+        }
+
+        if (mixInClass != null) {
+            Method mixInMethod = null;
+            String methodName = method.getName();
+            Class<?>[] parameterTypes = method.getParameterTypes();
+            // 递归从MixIn类的父类中查找注解（如果有父类的话）
+            for (Class<?> currClass = mixInClass; currClass != null && currClass != Object.class;
+                 currClass = currClass.getSuperclass()) {
+                try {
+                    mixInMethod = currClass.getDeclaredMethod(methodName, parameterTypes);
+                    break;
+                } catch (NoSuchMethodException e) {
+                    continue;
+                }
+            }
+            if (mixInMethod == null) {
+                return targetAnnotations;
+            }
+            mixInAnnotations = mixInMethod.getParameterAnnotations();
+            if (mixInAnnotations != null) {
+                return mixInAnnotations;
+            }
+        }
+        return targetAnnotations;
+    }
+
+    public static Annotation[][] getParameterAnnotations(Constructor constructor){
+        Annotation[][] targetAnnotations = constructor.getParameterAnnotations();
+
+        Class<?> clazz = constructor.getDeclaringClass();
+        Annotation[][] mixInAnnotations;
+        Class<?> mixInClass = null;
+        Type type = JSON.getMixInAnnotations(clazz);
+        if (type instanceof Class<?>) {
+            mixInClass = (Class<?>) type;
+        }
+
+        if (mixInClass != null) {
+            Constructor mixInConstructor = null;
+            Class<?>[] parameterTypes = constructor.getParameterTypes();
+            // 构建参数列表，因为内部类的构造函数需要传入外部类的引用
+            List<Class<?>> enclosingClasses = new ArrayList<Class<?>>(2);
+            for (Class<?> enclosingClass = mixInClass.getEnclosingClass(); enclosingClass != null; enclosingClass = enclosingClass.getEnclosingClass()) {
+                enclosingClasses.add(enclosingClass);
+            }
+            int level = enclosingClasses.size();
+            // 递归从MixIn类的父类中查找注解（如果有父类的话）
+            for (Class<?> currClass = mixInClass; currClass != null && currClass != Object.class;
+                 currClass = currClass.getSuperclass()) {
+                try {
+                    if (level != 0) {
+                        Class<?>[] outerClassAndParameterTypes = new Class[level + parameterTypes.length];
+                        System.arraycopy(parameterTypes, 0, outerClassAndParameterTypes, level, parameterTypes.length);
+                        for (int i = level; i > 0 ; i--) {
+                            outerClassAndParameterTypes[i - 1] = enclosingClasses.get(i - 1);
+                        }
+                        mixInConstructor = mixInClass.getDeclaredConstructor(outerClassAndParameterTypes);
+                    } else {
+                        mixInConstructor = mixInClass.getDeclaredConstructor(parameterTypes);
+                    }
+                    break;
+                } catch (NoSuchMethodException e) {
+                    level--;
+                }
+            }
+            if (mixInConstructor == null) {
+                return targetAnnotations;
+            }
+            mixInAnnotations = mixInConstructor.getParameterAnnotations();
+            if (mixInAnnotations != null) {
+                return mixInAnnotations;
+            }
+        }
+        return targetAnnotations;
+    }
+
+    public static boolean isJacksonCreator(Method method) {
+        if (method == null) {
+            return false;
+        }
+
+        if (class_JacksonCreator == null && !class_JacksonCreator_error) {
+            try {
+                class_JacksonCreator = (Class<? extends Annotation>) Class.forName("com.fasterxml.jackson.annotation.JsonCreator");
+            } catch (Throwable e) {
+                // skip
+                class_JacksonCreator_error = true;
+            }
+        }
+        return class_JacksonCreator != null && method.isAnnotationPresent(class_JacksonCreator);
+    }
+}