fastjson 简单使用

package com.jason.test;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;

import java.util.ArrayList;

public class FastJsonTest {
    public static void main(String[] args) {
        User user = new User("jason","123456");
        String json = JSON.toJSONString(user,SerializerFeature.WriteNullListAsEmpty);
        //String json = JSON.toJSONString(user);
        System.out.println(json); //{"name":"jason","passwd":"123456"}

        User user2 = new User("dong","123456");
        ArrayList<User> list = new ArrayList<>(2);
        list.add(user);
        list.add(user2);
        String listJson = JSON.toJSONString(list);
        System.out.println(listJson);//[{"name":"jason","passwd":"123456"},{"name":"dong","passwd":"123456"}]

        UserFoo uf = JSON.parSEObject(json,UserFoo.class);
        System.out.println(uf);//UserFoo{name=‘jason‘,passwd=‘123456‘}
    }
}


class User {
    private String name;
    private String passwd;

    public User(String name,String passwd) {
        this.name = name;
        this.passwd = passwd;
    }

    public String getName() {
        return name;
    }

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

    public String getPasswd() {
        return passwd;
    }

    public void setPasswd(String passwd) {
        this.passwd = passwd;
    }

}

class UserFoo {
    private String name;
    private String passwd;

    public UserFoo() {
    }

    public UserFoo(String name,String passwd) {
        this.name = name;
        this.passwd = passwd;
    }

    public String getName() {
        return name;
    }

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

    public String getPasswd() {
        return passwd;
    }

    public void setPasswd(String passwd) {
        this.passwd = passwd;
    }

    @Override
    public String toString() {
        return "UserFoo{" +
                "name=‘" + name + ‘‘‘ +
                ",passwd=‘" + passwd + ‘‘‘ +
                ‘}‘;
    }
}