hibernate级联关系 -----一对一

一对一

package com.lanou.hibernate.bean;
public class User {
private int id;
private String username;
private String pwd;
    private UserInfo  userinfo;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public UserInfo getUserinfo() {
return userinfo;
}
public void setUserinfo(UserInfo userinfo) {
this.userinfo = userinfo;
}
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", pwd=" + pwd + ", userinfo=" + userinfo + "]";
}

}

package com.lanou.hibernate.bean;

public class UserInfo {

private String id;

private  String  email;

private User user;

public String getId() {

return id;

}

public void setId(String id) {

this.id = id;

}

public String getEmail() {

return email;

}

public void setEmail(String email) {

this.email = email;

}

public User getUser() {

return user;

}

public void setUser(User user) {

this.user = user;

}

 

}

user.hbm.xml

<?xml version="1.0" encoding="WINDOWS-1251"?>

<!--

  ~ Hibernate, Relational Persistence for Idiomatic Java

  ~

  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.

  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.

  -->

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="com.lanou.hibernate.bean.User" table="tb_user" >

<id name="id" >

<generator class="uuid2"></generator>

</id>

<property name="username"></property>

<property name="pwd"></property>

<one-to-one name="userinfo" class="com.lanou.hibernate.bean.UserInfo" cascade="all"></one-to-one>

</class>

</hibernate-mapping>

userinfo.hbm.xml

<?xml version="1.0" encoding="WINDOWS-1251"?>

<!--

  ~ Hibernate, Relational Persistence for Idiomatic Java

  ~

  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.

  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.

  -->

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="com.lanou.hibernate.bean.UserInfo" table="tb_userinfo" >

<id name="id" >

<generator class="foreign">

<param name="property">user</param>

</generator>

</id>

 

<property name="email"></property>

<one-to-one name="user" class="com.lanou.hibernate.bean.User" cascade="all" constrained="true"></one-to-one>

</class>

</hibernate-mapping>