json字符串转换成user对象。

 1 DefaultHttpClient httpClient = new DefaultHttpClient();
 2         HttpPost method = new HttpPost("http://localhost:8080/tu-login/tuloginMethod");
 3 
 4         JSONObject jsonParam = new JSONObject();
 5         jsonParam.put("phone", phone);
 6         jsonParam.put("password", password);
 7         jsonParam.put("requrl", requrl);
 8 
 9         StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");
10         entity.setContentEncoding("UTF-8");
11         entity.setContentType("application/json");
12         method.setEntity(entity);
13         
14         HttpResponse resGet;
15         try {
16             
17             resGet = httpClient.execute(method);
18             String resData = EntityUtils.toString(resGet.getEntity(),"utf-8");
19             System.out.println(resData);
20             
21             //JSONObject
22             JSONObject resJSON = JSONObject.fromObject(resData);
23             System.out.println("resJSON转化resData是："+resJSON);
24             Object userjson = resJSON.get("user");
25             System.out.println("JSONObject转化的user对象是："+userjson);
26             String userString = userjson.toString();
27             //Gson 
28             Gson gson = new Gson();
29             String jsonString = gson.toJson(resData);
30             System.out.println("jsonString转化resData是："+jsonString);
31             User user = gson.fromJson((String) userString, User.class);
32             System.out.println("user.getName()是："+user.getName());
33             /*
34              *Gson gson = new Gson(); // Or use new GsonBuilder().create();
35              MyType target = new MyType();
36              String json = gson.toJson(target); // serializes target to Json
37              MyType target2 = gson.fromJson(json, MyType.class);  
38              */
39             
40             
41             //JsonObject
42             JsonObject jsonObj = new JsonObject();
43             jsonObj.getAsJsonObject(resData);
44             System.out.println("jsonObj转化resData是："+jsonObj);
45             
46         
47             
48             
49             /*if(null != resJson.get("user")){
50                 System.out.println("user在tu-login 是null");
51                 User user = (User)resJson.get("user");
52                 request.getSession().setAttribute("user", user);
53             }*/
54             //JsonNull判断空值
55             if("A00000".equals(resJSON.get("code"))){
56                 String token = (String)resJSON.get("token");
57                 securityUtil.addCookieToken(request,response,token,user.getId());
58             }
59             
60             //cookie   --- token,requrl
61             
62             //securityUtil.addCookie(request,response,requrl);
63             
64             if ( !"A00000".equals(resJSON.get("code"))) {
65                 result = resJSON.get("data");
66             }else{
67             result = securityUtil.getReqURL(request,response);
68             }
69             
70             request.getSession().setAttribute("", "");
71             resultCode = resJSON.get("code");