net.sf.json.JSONObject
net.sf.json.JSONArray


//將每個(gè)vehicle對象拼接為json格式的對象,用于命令下發(fā)
JSONObject json = JSONObject.fromObject(v); //v即對象
jsonArray.add(json);
//System.out.println(jsonArray.toString());
//用于命令下發(fā)
sendCommandList = jsonArray.toString();

//注意：此時(shí)得到的是Json串。

//注意：要加上escapeJavaScript="false" escape="false" ，否則傳過來Json字符串中的引號(hào)都會(huì)被解析成為&quot

var szJsonStr = '<s:property escapeJavaScript="false" escape="false" value="sendCommandList" />';

//把Json字符串轉(zhuǎn)化為對象數(shù)組
var addVehicleArray = eval(szJsonStr);

package jsontest;

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


public class JSONObjectSample {


  // 創(chuàng)建JSONObject對象
  private static JSONObject createJSONObject() {
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("username", "huangwuyi");
    jsonObject.put("sex", "男");
    jsonObject.put("QQ", "413425430");
    jsonObject.put("Min.score", new Integer(99));
    jsonObject.put("nickname", "夢中心境");
    return jsonObject;
  }


  public static void main(String[] args) {
    JSONObject jsonObject = JSONObjectSample.createJSONObject();//靜待方法，直接通過類名+方法調(diào)用
    // 輸出jsonobject對象
    System.out.println("jsonObject：" + jsonObject);


    // 判讀輸出對象的類型
    boolean isArray = jsonObject.isArray();
    boolean isEmpty = jsonObject.isEmpty();
    boolean isNullObject = jsonObject.isNullObject();
    System.out.println("是否為數(shù)組:" + isArray + "， 是否為空:" + isEmpty
        + "， isNullObject:" + isNullObject);


    // 添加屬性，在jsonObject后面追加元素。
    jsonObject.element("address", "福建省廈門市");
    System.out.println("添加屬性后的對象：" + jsonObject);


    // 返回一個(gè)JSONArray對象
    JSONArray jsonArray = new JSONArray();
    jsonArray.add(0, "this is a jsonArray value");
    jsonArray.add(1, "another jsonArray value");
    jsonObject.element("jsonArray", jsonArray);
    //在jsonObject后面住家一個(gè)jsonArray
    JSONArray array = jsonObject.getJSONArray("jsonArray");
    System.out.println(jsonObject);
    
    
    System.out.println("返回一個(gè)JSONArray對象：" + array);
    // 添加JSONArray后的值
    // {"username":"huangwuyi","sex":"男","QQ":"413425430","Min.score":99,"nickname":"夢中心境","address":"福建省廈門市","jsonArray":["this is a jsonArray value","another jsonArray value"]}
    System.out.println("結(jié)果=" + jsonObject);


    // 根據(jù)key返回一個(gè)字符串
    String username = jsonObject.getString("username");
    System.out.println("username==>" + username);


    // 把字符轉(zhuǎn)換為 JSONObject
    String temp = jsonObject.toString();
    JSONObject object = JSONObject.fromObject(temp);
    // 轉(zhuǎn)換后根據(jù)Key返回值
    System.out.println("qq=" + object.get("QQ"));


  }


}

jsonObject：{"username":"huangwuyi","sex":"男","QQ":"413425430","Min.score":99,"nickname":"夢中心境"}
是否為數(shù)組:false， 是否為空:false， isNullObject:false
添加屬性后的對象：{"username":"huangwuyi","sex":"男","QQ":"413425430","Min.score":99,"nickname":"夢中心境","address":"福建省廈門市"}
{"username":"huangwuyi","sex":"男","QQ":"413425430","Min.score":99,"nickname":"夢中心境","address":"福建省廈門市","jsonArray":["this is a jsonArray value","another jsonArray value"]}
返回一個(gè)JSONArray對象：["this is a jsonArray value","another jsonArray value"]
結(jié)果={"username":"huangwuyi","sex":"男","QQ":"413425430","Min.score":99,"nickname":"夢中心境","address":"福建省廈門市","jsonArray":["this is a jsonArray value","another jsonArray value"]}
username==>huangwuyi
qq=413425430

package jsontest;


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


public class JSONTest {
  public static void main(String args[])
  {
    JSONObject jsonObj0 = new JSONObject();
    JSONObject jsonObj = new JSONObject();
    JSONObject jsonObj2 = new JSONObject();
    JSONObject jsonObj3 = new JSONObject();
    JSONArray jsonArray = new JSONArray();
    
    //創(chuàng)建jsonObj0
    jsonObj0.put("name0", "zhangsan");
    jsonObj0.put("sex1", "female");
    System.out.println("jsonObj0:"+jsonObj0);
    
    //創(chuàng)建jsonObj1
    jsonObj.put("name", "xuwei");
    jsonObj.put("sex", "male");
    System.out.println("jsonObj:"+jsonObj);
  
    //創(chuàng)建jsonObj2，包含兩個(gè)條目，條目內(nèi)容分別為jsonObj0，jsonObj1
    jsonObj2.put("item0", jsonObj0);
    jsonObj2.put("item1", jsonObj);
    System.out.println("jsonObj2:"+jsonObj2);
    
    //創(chuàng)建jsonObj3，只有一個(gè)條目，內(nèi)容為jsonObj2
    jsonObj3.element("j3", jsonObj2);
    System.out.println("jsonObj3:"+jsonObj3);
  
    //往JSONArray中添加JSONObject對象。發(fā)現(xiàn)JSONArray跟JSONObject的區(qū)別就是JSONArray比JSONObject多中括號(hào)[]
    jsonArray.add(jsonObj);
    System.out.println("jsonArray:"+jsonArray);
    
    JSONObject jsonObj4 = new JSONObject();
    jsonObj4.element("weather", jsonArray);
    System.out.println("jsonObj4:"+jsonObj4);
  }
}

jsonObj0:{"name0":"zhangsan","sex1":"female"}

jsonObj:{"name":"xuwei","sex":"male"}

jsonObj2:{"item0":{"name0":"zhangsan","sex1":"female"},"item1":{"name":"xuwei","sex":"male"}}

jsonObj3:{"j3":{"item0":{"name0":"zhangsan","sex1":"female"},"item1":{"name":"xuwei","sex":"male"}}}

jsonArray:[{"name":"xuwei","sex":"male"}]

jsonObj4:{"weather":[{"name":"xuwei","sex":"male"}]}