订单提交时，回签单必填控制只在海盐站点进行控制

src/rest/openapi/restcontroller/wechatapp/saorder/tools/SaorderTool.java

@@ -362,7 +362,10 @@ public class SaorderTool extends BaseClass {
             double fuseflamount = content.getDouble("fuseflamount");
 
             String fbrand = content.getString("fbrand");//Æ·ÅÆ
-            String fsignbacknum = content.getString("fsignbacknum");//»ØÇ©µ¥
+            String fsignbacknum = "";
+            if (content.containsKey("fsignbacknum")) {
+                fsignbacknum = content.getString("fsignbacknum");//»ØÇ©µ¥
+            }
 
             String fsaletype = "";
             if (content.containsKey("fsaletype") && !content.getString("fsaletype").equalsIgnoreCase("null")) {