java 操作json之一 操作org.json包

例一。(org.json包)

首先导入org.json下面的包

package com.sun;


import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;


public class Test {


public static void main(String args[]) throws JSONException {

String jsonContent = "{'hello':world,'abc':'xyz'}";

JSONObject jsonObject = new JSONObject(jsonContent);

String str1 = jsonObject.getString("hello");

String str2 = jsonObject.getString("abc");

System.out.println(str1);

System.out.println(str2);


System.out.println("------------------");

jsonContent = "[{'hello':333,'abc':'false','xyz':{'a':1,'b':'ab'}},{'hello':555,'abc':'true','xyz':{'a':2,'b':'ba'}}]";

JSONArray jsonArray = new JSONArray(jsonContent);

for(int i=0;i<jsonArray.length();i++){

JSONObject jsonobject2=jsonArray.getJSONObject(i);

int value1=jsonobject2.getInt("hello");

boolean value2=jsonobject2.getBoolean("abc");

// String value3=jsonobject2.getString("xyz");

JSONObject jsonobject3=jsonobject2.getJSONObject("xyz");

int value4=jsonobject3.getInt("a");

String value5=jsonobject3.getString("b");

System.out.println(value1);

System.out.println(value2);

System.out.println(value4);

System.out.println(value5);

}

}

}

输出结果

world

xyz

------------------

333

false

1

ab

555

true

2

ba

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转载自andy2019.iteye.com/blog/1513171