Hibernate OneToOne注解配置
1. Hibernate Annotation注解OneToOne?
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原理就不介绍了
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2. 数据字典表
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? tb_addressInfo
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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;
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tb_userinfo
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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;
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AddressInfo
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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;@Columnprivate String name;@Columnprivate 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;}}??
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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;@Columnprivate 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;}}??
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1 楼 paladin1988 2012-08-20 请问mappedBy是什么意思呢？ 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。