fastjson：Json和Java对象转换

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.68</version>
</dependency>

package com.pengshiyu.bean;
public class Person {
    private String name;
    private int 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;
    }
    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

package com.pengshiyu.demo;
import com.alibaba.fastjson.JSON;
import com.pengshiyu.bean.Person;
public class JsonDemo {
    public static void main(String[] args) {
        Person person = new Person();
        person.setAge(23);
        person.setName("Tom");
        //序列化
        String text = JSON.toJSONString(person);
        System.out.println(text);
        // {"age":23,"name":"Tom"}
        //反序列化
        Person newPerson = JSON.parseObject(text, Person.class);
        System.out.println(newPerson);
        // Person{name='Tom', age=23}
    }
}

package com.pengshiyu;
import com.alibaba.fastjson.JSONObject;
public class FastJsonDemo {
    public static void main(String[] args) {
        String userString = "{\"age\":1, \"name\": \"Tom\"}";
        JSONObject userJson = JSONObject.parseObject(userString);
        System.out.println(userJson.get("name"));
        // Tom
    }
}