使用 @javax.persistence.AttributeOverride 处理 Multiple embeddable types 。

package org.example.demo.hibernate;

import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embeddable;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Persistence;

public class Test {
    public static void main(String[] args) {
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("test");
        EntityManager em = factory.createEntityManager();

        em.getTransaction().begin();
        Contact person = new Contact();
        person.home = new Address();
        person.home.addr = "Beijing";
        person.home.zipcode = "100000";
        person.work = new Address();
        person.work.addr = "Shanghai";
        person.work.zipcode = "200000";
        em.persist(person);
        em.getTransaction().commit();

        em.close();
        factory.close();
    }

    @Entity(name = "Contact")
    public static class Contact {
        @Id
        @GeneratedValue
        Integer id;
        @Embedded
        @AttributeOverrides({ @AttributeOverride(name = "addr", column = @Column(name = "home_addr")),
                @AttributeOverride(name = "zipcode", column = @Column(name = "home_zipcode")) })
        Address home;
        @Embedded
        @AttributeOverrides({ @AttributeOverride(name = "addr", column = @Column(name = "work_addr")),
                @AttributeOverride(name = "zipcode", column = @Column(name = "work_zipcode")) })
        Address work;
    }

    @Embeddable
    public static class Address {
        String addr;
        String zipcode;
    }
}

生成 SQL

drop table if exists Contact cascade
drop sequence if exists hibernate_sequence

create sequence hibernate_sequence start 1 increment 1
create table Contact (id int4 not null, home_addr varchar(255), home_zipcode varchar(255), work_addr varchar(255), work_zipcode varchar(255), primary key (id))
select nextval ('hibernate_sequence')
insert into Contact (home_addr, home_zipcode, work_addr, work_zipcode, id) values ('Beijing', '100000', 'Shanghai', '200000', 1)