Java和js操作json

Js中

Json字符串转json对象

//将json格式的字符串转为json对象

var t = JSON.parse('{"name":123}'); 

alert(t.name);

json对象转json字符串

//json对象数组。

//packJson 为对象数组

packJson = [

                  {"name":"nikita", "password":"1111"},

                  {"name":"tony", "password":"2222"}

];

//json  to  string

var s = JSON.stringify(packJson);

//S为字符串。

alert(packJson[0].name); //访问对象数组packJson

Java中

Json字符串转json对象，并获取属性

解析json格式字符串获得对象

String jsonString = "["
                                    + "{"author":"7","id":358,"title":"Japan","pictures":[{"description":"001","imgPath":"/cms/u/cms/www/201203/05150720ii68.jpg"},{"description":"002","imgPath":"/cms/u/cms/www/201203/05150720ii67.jpg"}],"path":"ip"},"

                                    + "{"author":"8","id":359,"title":"China","pictures":[{"description":"101","imgPath":"/cms/u/cms/www/201203/111111111111.jpg"},{"description":"102","imgPath":"/cms/u/cms/www/201203/222222222222.jpg"}],"path":"ip"}]";

                 

JSONArray array = JSONArray.fromObject(jsonString);

if (array.size() > 0) {

                           for (int i = 0; i < array.size(); i++) {

                                    JSONObject job = array.getJSONObject(i); // 遍历 jsonarray

                                                                                                                                                                                                                                                                                                                  System.out.println("author : " + job.get("author") ); // 得到 每个对象中的属性值

                           }

                  }

java对象转换成json对象，并获取json对象属性

        /** 
         * java对象转换成json对象，并获取json对象属性 
         */  
        JSONObject jsonStu = JSONObject.fromObject(student);  
        System.out.println(jsonStu.toString());  
        System.out.println(jsonStu.getJSONArray("hobby"));

Json对象转换成java对象，并获取java对象属性

       /** 
        * json对象转换成java对象，并获取java对象属性 
         */  
         Student stu = (Student) JSONObject.toBean(jsonStu, Student.class);  
        System.out.println(stu.getName());

把java 对象列表转换为json对象数组，并转为字符串

 JSONArray array = JSONArray.fromObject(userlist);
String jsonstr = array.toString();

把java对象转换成json对象

JSONObject object = JSONObject.fromObject(invite);

把JSON字符串转换为JAVA 对象数组

  String personstr = “”

  JSONArray json = JSONArray.fromObject(personstr);
  List<InvoidPerson> persons = (List<InvoidPerson>)JSONArray.toCollection(json, nvoidPerson.class);

代码来自网络