Hibernate OneToOne注解配置

1. Hibernate Annotation注解OneToOne 

 

原理就不介绍了

 

2. 数据字典表

 

  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;
	}

}

 

 

 

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;
	}
	
}

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

评论

2 楼 mianhuaman 2012-09-09  

指向，比如你去新浪注册了一个帐号。那么mappedBy就是你注删帐号，你可能通过这个帐号登录你的新浪箱相或博客。他的主要作用就是指别人是通过什么方式找到你的。

1 楼 paladin1988 2012-08-20  

请问mappedBy是什么意思呢？