Java和js操作json

时间:2022-04-26 12:49:50

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);

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