JSON和GSON操作json数据

 1 import net.sf.json.JSONArray;
 2 import net.sf.json.JSONObject;
 3 
 4 //json操作数据
 5 public static String objToJson(User user)
 6 {
 7     JSONObject jsonObject = JSONObject.fromObject(user);
 8     return jsonObject.toString();
 9 }
10 public static User jsonToObj(String str)
11 {
12     JSONObject jsonObject = JSONObject.fromObject(str);
13     User user = (User)jsonObject.toBean(jsonObject, User.class);
14     return user;
15 }
16 public static JSONArray strToJsonArray(List<User> users)
17 {
18     return JSONArray.fromObject(users);
19 }
20         

 1 import com.google.gson.Gson;
 2 
 3 //gson操作数据
 4 public static String objToJson(User user)
 5 {
 6     Gson gson = new Gson();
 7     return gson.toJson(user);
 8 }
 9 public static User jsonToObj(String str)
10 {
11     Gson gson = new Gson();
12     User user5 = (User)gson.fromJson(str, User.class);
13     return user5;
14 }