fastjson

https://repo1.maven.org/maven2/com/alibaba/fastjson/1.2.24/

<dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.24</version>
        </dependency>
    </dependencies>

Persion.java

public class Persion {
    public String name;
    private int age;

    @Override
    public String toString() {
        return "Persion{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }

    public String getName() {
//        System.out.println("getName执行了");
        return name;
    }

    public void setName(String name) {
//        System.out.println("setName执行了");
        this.name = name;
    }

    public int getAge() {
//        System.out.println("getAge执行了");
        return age;
    }

    public void setAge(int age) {
//        System.out.println("setAge执行了");
        this.age = age;
    }

    public Persion() {
    }

    public Persion(String name, int age) {
        this.name = name;
        this.age = age;
    }
}

Fastjson.java

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

import java.sql.SQLOutput;

public class Fastjson {
    public static void main(String[] args)  throws Exception{
//        new一个persion对象
        Persion persion = new Persion("wan", 18);
//        将persion对象使用toJSONString转换成字符串s
        String s = JSONObject.toJSONString(persion);
//        打印s
        System.out.println("s:" + s);

        String s1 = JSONObject.toJSONString(persion, SerializerFeature.WriteClassName);
        System.out.println("s1:"+ s1);




    }
}

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

import java.sql.SQLOutput;

public class Fastjson {
    public static void main(String[] args)  throws Exception{
//        把对象准换成字符串
//        new一个persion对象
        Persion persion = new Persion("wan", 18);
//        将persion对象使用toJSONString转换成字符串s
        String noType = JSONObject.toJSONString(persion);
//        打印s
        System.out.println("noType:" + noType);
//        noType:{"age":18,"name":"wan"}
        String type = JSONObject.toJSONString(persion, SerializerFeature.WriteClassName);
        System.out.println("type:"+ type);
//        其中@type表示允许用户在反序列化数据中通过@type指定反序列化的class类型
//        s1:{"@type":"Persion","age":18,"name":"wan"}



//        将字符串转换成对象
        String noType1 = "{\"age\":18,\"name\":\"wan\"}";
//        什么都不执行
        Object noType1parse = JSONObject.parse(noType1);
        System.out.println(noType1parse);
//        什么都不执行
        JSONObject noType1Object = JSONObject.parseObject(noType1);
        System.out.println(noType1Object);

        String type1 = "{\"@type\":\"Persion\",\"age\":18,\"name\":\"wan\"}";
//      执行set 和 toString
        Object type2parse = JSONObject.parse(type1);
        System.out.println(type2parse);
//      执行set 和 get
        JSONObject type2Object = JSONObject.parseObject(type1);
        System.out.println(type2Object);


    }
}

这里调了parse

这里多了一个转换成json对象