hibernate 组件映射

最新推荐文章于 2025-08-22 13:45:39 发布

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最新推荐文章于 2025-08-22 13:45:39 发布

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文章标签： java

原文链接：http://www.cnblogs.com/flying607/p/3478216.html

本文介绍Hibernate中使用注解和XML两种方式实现Husband与Wife类的关联映射。通过@Entity注解定义实体类，并使用@Embedded注解关联Wife类。同时提供了对应的XML映射文件示例。

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注解方式：

import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinColumns;
import javax.persistence.OneToOne;

@Entity
public class Husband {
    private int id;
    private String name;
    private Wife wife;
    @Id
    @GeneratedValue
    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }
    @Embedded
    public Wife getWife() {
        return wife;
    }
    public void setId(int id) {
        this.id = id;
    }
    public void setName(String name) {
        this.name = name;
    }
    public void setWife(Wife wife) {
        this.wife = wife;
    }
}

package com.bjsxt.hibernate;

public class Wife {

    private String wifeName;
    private int age;

    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }

    public String getWifeName() {
        return wifeName;
    }
    public void setWifeName(String name) {
        this.wifeName = name;
    }

}

xml方式：

Husband.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
    <class name="com.bjsxt.hibernate.Husband" >
        <id name="id">
            <generator class="native"></generator>
        </id>

        <property name="name"></property>
        <component name="wife">
            <property name="wifeName"></property>
            <property name="age"></property>
        </component>
    </class>

</hibernate-mapping>

转载于:https://www.cnblogs.com/flying607/p/3478216.html