如何为这个json制作java POJO？

import com.fasterxml.jackson.annotation.JsonProperty;

public class MyJson {
    @JsonProperty("name")
    private String name;

    @JsonProperty("age")
    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;
    }
}

import com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    public static void main(String[] args) throws Exception {
        String json = "{\"name\":\"John\",\"age\":30}";

        ObjectMapper objectMapper = new ObjectMapper();
        MyJson myJson = objectMapper.readValue(json, MyJson.class);

        System.out.println(myJson.getName());  // 输出：John
        System.out.println(myJson.getAge());   // 输出：30
    }
}