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;
}