蝸牛—JSON學習之Java轉化

蝸牛—JSON學習之Java轉化

最近，在寫一個網站的後台管理，用到非同步通訊技術，用的方法是JSON資料傳送方式

需要下面幾個jar檔案

然後，自己寫了一點點常用代碼

Java的List和數組要用JSONArray對象

Map和實體用JSONObject<喎?http://www.bkjia.com/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHA+PHByZSBjbGFzcz0="brush:java;">package com.demo;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import com.trade.entity.Users;public class TestJSON {public static void main(String[] args) {Users users = new Users();users.setId(0);users.setUname("admin");users.setPwd("admin");Users users1 = new Users();users1.setId(1);users1.setUname("admin1");users1.setPwd("admin1");List list = new ArrayList();list.add(users);list.add(users1);// shitiduixiang {"id":1,"pwd":"admin1","uname":"admin1"}// JSONObject jsonObject = JSONObject.fromObject(users);// System.out.println(jsonObject.toString());// [{"id":1,"pwd":"admin1","uname":"admin1"},{"id":0,"pwd":"","uname":""}]// list// JSONArray array = JSONArray.fromObject(list);// System.out.println(array.toString());// {"total":2,"rows":[{"id":0,"pwd":"admin","uname":"admin"},{"id":1,"pwd":"admin1","uname":"admin1"}]}// 自己定義// JSONObject jsonObject = new JSONObject();// jsonObject.put("total", 2);// jsonObject.put("rows", list);// System.out.println(jsonObject.toString());// {"id":"0","pwd":"wjj","admin":"wjj"}Map map = new HashMap();map.put("id", "0");map.put("admin", "wjj");map.put("pwd", "wjj");JSONObject jsonObject = JSONObject.fromObject(map);System.out.println(jsonObject.toString());}}