JSON和GSON操作json数据

1，JSON操作json

 import net.sf.json.JSONArray;
 import net.sf.json.JSONObject;

 //json操作数据
 public static String objToJson(User user)
 {
     JSONObject jsonObject = JSONObject.fromObject(user);
     return jsonObject.toString();
 }
 public static User jsonToObj(String str)
 {
     JSONObject jsonObject = JSONObject.fromObject(str);
     User user = (User)jsonObject.toBean(jsonObject, User.class);
     return user;
 }
 public static JSONArray strToJsonArray(List<User> users)
 {
     return JSONArray.fromObject(users);
 }
         

2，GSON操作json

 import com.google.gson.Gson;

 //gson操作数据
 public static String objToJson(User user)
 {
     Gson gson = new Gson();
     return gson.toJson(user);
 }
 public static User jsonToObj(String str)
 {
     Gson gson = new Gson();
     User user5 = (User)gson.fromJson(str, User.class);
     return user5;
 }