JSONObject jsonObject=new JSONObject();
        User user=new User("尚晓飞", "男", 25, new Date(), "bjsxt");
        jsonObject.put("user", user);
        System.out.println("Test.main()"+jsonObject.toString());

                //打印结果：Test.main(){"user":{"age":25,"birthDay":1405067572140,"name":"尚晓飞","school":"bjsxt","sex":"男"}}

 1 User user=new User("尚晓飞", "男", 25, new Date(), "bjsxt");
 2         User user2=new User("sxf", "女", 22, new Date(), "北京尚学堂");
 3         User user3=new User("当当", "男", 25, new Date(), "当当网");
 4         List<Object> userList=new ArrayList<Object>();
 5         
 6         userList.add(user);
 7         userList.add(user2);
 8         userList.add(user3);
 9         
10         JSONObject jsonObject=new JSONObject();
11         jsonObject.put("userlist", userList);
12         
13         
14         System.out.println("Test.main()"+jsonObject);
15         
16 //打印结果：Test.main(){"userlist":[{"age":25,"birthDay":1405069939080,"name":"尚晓飞","school":"bjsxt","sex":"男"},{"age":22,"birthDay":1405069939080,"name":"sxf","school":"北京尚学堂","sex":"女"},{"age":25,"birthDay":1405069939080,"name":"当当","school":"当当网","sex":"男"}]}

 1 User user=new User("尚晓飞", "男", 25, new Date(), "bjsxt");
 2         User user2=new User("sxf", "女", 22, new Date(), "北京尚学堂");
 3         User user3=new User("当当", "男", 25, new Date(), "当当网");
 4         List<Object> userList=new ArrayList<Object>();
 5         
 6         userList.add(user);
 7         userList.add(user2);
 8         userList.add(user3);
 9         
10         JSONArray jsonArray=new JSONArray(userList);
11         
12         
13         System.out.println("Test.main()"+jsonArray);
14 
15 //打印结果:Test.main()[{"age":25,"birthDay":1405069524031,"name":"尚晓飞","school":"bjsxt","sex":"男"},{"age":22,"birthDay":1405069524031,"name":"sxf","school":"北京尚学堂","sex":"女"},{"age":25,"birthDay":1405069524031,"name":"当当","school":"当当网","sex":"男"}]

1 User user=new User("尚晓飞", "男", 25, new Date(), "bjsxt");
2         User user2=new User("sxf", "女", 22, new Date(), "北京尚学堂");
3         User user3=new User("当当", "男", 25, new Date(), "当当网");
4         List<Object> userList=new ArrayList<Object>();
5         
6         userList.add(user);
7         userList.add(user2);
8         userList.add(user3);
9         JSON json=(JSON) JSON.toJSON(userList);

 1 //如果是一个json对象var abc={"key":"value"}
 2 //取出key对应的值
 3 var v=abc.key
 4 var v=abc["key"]
 5 
 6 
 7 //如果是一个json数组的对象   var abc=[{"one":"一","name":"尚晓飞"},{"one":"二","name":"尚小帅"}]
 8 
 9 for(var i=0;i<abc.length;i++){
10      var m=abc[i].name;
11      var o=abc[i].one; 
12      var m=abc[i]["name"]           
13 }