JSONObject轉換

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.41</version>
</dependency>

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

/**
 * JSONObject轉換
 */
public class JsonTest {
    public static class User{
        private String name;
        private int age;
        public User(String name, int age){
            this.name = name;
            this.age = age;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }
    }

    public static void main (String [] args) {
        // 1、Java對象轉換Json字符串
        User user1 = new User("張三", 23);
        String json1 = JSON.toJSONString(user1);

        // 2、Json字符串轉換JSONObject
        String json2 = "{\"age\":43,\"name\":\"劉能\"}";
        JSONObject jsonObject = JSON.parseObject(json2);

        // 3、Java字符串轉換Java對象
        String json3 = "{\"age\":33,\"name\":\"趙四\"}";
        User user = JSON.parseObject(json3, User.class);
    }
}