java值对象的用法

Person 是表t_table的实体类，t_table有5个字段：name，sex,country,province,city

country,province,city放到值对象中，下面是值对象的用法

package com.example.demo6;

import javax.persistence.Embedded;
import javax.persistence.Table;

@Table(name = "t_table")
public class Person {

    private String name;
    private String sex;
    @Embedded
    private Address address;
}

package com.example.demo6;

import javax.persistence.Embeddable;

@Embeddable
public class Address {

    private String country;

    private String province;

    private String city;
}