bwj_server/src/dsb/com/cnd3b/utility/WebRequest.java

/**
 *
 */
package com.cnd3b.utility;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;

/**
 * @author SJW
 *
 */
public class WebRequest {
    public String doPost(String content, String url) {
        PrintWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        HttpURLConnection conn = null;
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            conn = (HttpURLConnection) realUrl.openConnection();
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setConnectTimeout(8000);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(), StandardCharsets.UTF_8));
            out.print(content);
            out.flush();
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.err.println("[POST请求]向地址：" + url + " 发送数据：发生错误!");
        } finally {// 使用finally块来关闭输出流、输入流
            if (out != null) {
                out.close();
                out = null;
            }
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                in = null;
            }
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return result.toString();
    }

    public String doPostKuJiaLe(String content, String url) {
        PrintWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        HttpURLConnection conn = null;
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            conn = (HttpURLConnection) realUrl.openConnection();
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
            conn.setConnectTimeout(8000);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(), StandardCharsets.UTF_8));
            out.print(content);
            out.flush();
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.err.println("[POST请求]向地址：" + url + " 发送数据：发生错误!");
        } finally {// 使用finally块来关闭输出流、输入流
            if (out != null) {
                out.close();
                out = null;
            }
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                in = null;
            }
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return result.toString();
    }


    public void doGet_simple(String url) {
        HttpsURLConnection conn = null;
        try {
            URL realUrl = new URL(url);

            trustAllHttpsCertificates();
            HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    // TODO Auto-generated method stub
                    System.out.println("Warning: URL Host: " + hostname + " vs. "
                            + session.getPeerHost());
                    return true;
                }
            });
            conn = (HttpsURLConnection) realUrl.openConnection();
            conn.setConnectTimeout(8000);
            conn.getResponseCode();
        } catch (Exception e) {
            e.printStackTrace();
            System.err.println("[POST请求]向地址：" + url + " 发送数据：发生错误!");
        } finally {// 使用finally块来关闭输出流、输入流
            if (conn != null) {
                conn.disconnect();
            }
        }
    }

    public String doGet(String url) {
        PrintWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        HttpsURLConnection conn = null;
        try {
            URL realUrl = new URL(url);

            trustAllHttpsCertificates();
            HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    // TODO Auto-generated method stub
                    System.out.println("Warning: URL Host: " + hostname + " vs. "
                            + session.getPeerHost());
                    return true;
                }
            });

            // 打开和URL之间的连接
            conn = (HttpsURLConnection) realUrl.openConnection();
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setConnectTimeout(8000);
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.err.println("[POST请求]向地址：" + url + " 发送数据：发生错误!");
        } finally {// 使用finally块来关闭输出流、输入流
            if (out != null) {
                out.close();
                out = null;
            }
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                in = null;
            }
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return result.toString();
    }


    private static void trustAllHttpsCertificates() throws Exception {
        javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];
        javax.net.ssl.TrustManager tm = new miTM();
        trustAllCerts[0] = tm;
        javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext.getInstance("SSL");
        sc.init(null, trustAllCerts, null);
        javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
    }

    static class miTM implements javax.net.ssl.TrustManager, javax.net.ssl.X509TrustManager {
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        public boolean isServerTrusted(java.security.cert.X509Certificate[] certs) {
            return true;
        }

        public boolean isClientTrusted(java.security.cert.X509Certificate[] certs) {
            return true;
        }

        public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
        }

        public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType)
                throws java.security.cert.CertificateException {
        }
    }
}