常用的JSON的方法

1.JSON对象与JAVA对象互转

核心代码 

JSON.parseObject(String, XXX.class);

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
 
import java.util.HashMap;
import java.util.Map;
 
public class JsonPractice {
    public static void main(String[] args) {
        Map<String,Object> map = new HashMap<>();
        Object object = null;
        map.put("name","王五");
        map.put("age",12);
        map.put("weight",120);
        map.put("height",160);
        JSONObject jsonObject = new JSONObject(map);
        Student student = JSON.parseObject(String.valueOf(jsonObject), Student.class);
        System.out.println(student);
    }
}

　　

 

 

附：其他代码

public class Student {
    private String name;
    private int age;
    private int weight;
    private int height;
 
    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 int getWeight() {
        return weight;
    }
 
    public void setWeight(int weight) {
        this.weight = weight;
    }
 
    public int getHeight() {
        return height;
    }
 
    public void setHeight(int height) {
        this.height = height;
    }
 
    public Student(String name, int age, int weight, int height) {
        this.name = name;
        this.age = age;
        this.weight = weight;
        this.height = height;
    }
 
    public Student() {
    }
 
    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", weight=" + weight +
                ", height=" + height +
                '}';
    }
}