Hibernate OneToOne注解配置

最新推荐文章于 2024-07-02 08:51:46 发布

ConstantDripping

最新推荐文章于 2024-07-02 08:51:46 发布

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文章标签： hibernate entity 数据注解

本文介绍了一个用户地址信息管理系统的设计与实现。系统通过两个实体：UserInfo 和 AddressInfo 进行关联，实现了用户信息与地址信息的一对一映射。在数据库层面，使用 MySQL 创建了 tb_userinfo 和 tb_addressinfo 两张表，并定义了相应的外键约束。

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tb_addressInfo

CREATE TABLE `tb_addressinfo` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `detail` varchar(255) DEFAULT NULL,
  `name` varchar(255) DEFAULT NULL,
  `userInfo_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `id` (`id`),
  UNIQUE KEY `userInfo_id` (`userInfo_id`),
  KEY `FK2F779271FC1A0B7B` (`userInfo_id`),
  CONSTRAINT `FK2F779271FC1A0B7B` FOREIGN KEY (`userInfo_id`) REFERENCES `tb_userinfo` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

tb_userinfo

CREATE TABLE `tb_userinfo` ( 
`id` int(11) NOT NULL AUTO_INCREMENT, 
`name` varchar(255) DEFAULT NULL, 
PRIMARY KEY (`id`), 
UNIQUE KEY `id` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

AddressInfo

package org.zk.liuqing.domain;

import static javax.persistence.GenerationType.IDENTITY;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;

/**
 * 
 * @author LiuQing
 * @see 显示地址
 * @version 1.0
 * @date 2010-6-26 下午11:00:02
 */
@Entity(name="AddressInfo")
@Table(name="tb_addressInfo")
public class AddressInfo implements Serializable {
	
	private static final long serialVersionUID = -3387012027037438359L;

	@Id @GeneratedValue(strategy=IDENTITY)
    @Column(name="id", unique=true, nullable=false)
	private Integer id;
	
	@Column
	private String name;
	
	@Column
	private String detail;
	
	@OneToOne
	@JoinColumn(name="userInfo_id",insertable=true,unique=true)
	private UserInfo userInfo;

	public UserInfo getUserInfo() {
		return userInfo;
	}
	
	public void setUserInfoAddressInfo(UserInfo userInfo) {
		this.userInfo = userInfo;
		this.userInfo.setAddressInfo(this);
	}

	public void setUserInfo(UserInfo userInfo) {
		this.userInfo = userInfo;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getDetail() {
		return detail;
	}

	public void setDetail(String detail) {
		this.detail = detail;
	}

}

UserInfo

package org.zk.liuqing.domain;

import static javax.persistence.GenerationType.IDENTITY;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Table;

/**
 * 
 * @author LiuQing
 * @see 用户信息
 * @version 1.0
 * @date 2010-6-26 下午11:00:45
 */
@Entity(name="UserInfo")
@Table(name="tb_userInfo")
public class UserInfo implements Serializable {
	
	private static final long serialVersionUID = 1054325973011267306L;
	
	@Id @GeneratedValue(strategy=IDENTITY)
    @Column(name="id", unique=true, nullable=false)
	private Integer id;
	
	@Column
	private String name;
	
	@OneToOne(mappedBy="userInfo",fetch=FetchType.EAGER)
	private AddressInfo addressInfo;

	public AddressInfo getAddressInfo() {
		return addressInfo;
	}

	public void setAddressInfoUserInfo(AddressInfo addressInfo) {
		this.addressInfo = addressInfo;
		this.addressInfo.setUserInfo(this);
	}
	
	public void setAddressInfo(AddressInfo addressInfo) {
		this.addressInfo = addressInfo;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
}