hibernate 一对一双向带关联表映射练习

Husband.java

package com.aabnn.vo;

public class Husband {
	private int id;
	private String name;
	private Wife wife;
	public Husband(){}
	public Husband(String name,Wife wife){
		this.name=name;
		this.wife=wife;
	}
	public int getId(){
		return id;
	}
	public void setId(int id){
		this.id=id;
	}
	public String getName(){
		return name;
	}
	public void setName(String name){
		this.name=name;
	}
	public Wife getWife(){
		return wife;
	}
	public void setWife(Wife wife){
		this.wife=wife;
	}
}

Wife.java

package com.aabnn.vo;

public class Wife {
	private int id;
	private String name;
	private Husband husband;
	public Wife(){
		
	}
	public Wife(String name){
		this.name=name;
	}
	public int getId(){
		return id;
	}
	@SuppressWarnings("unused")
	private void setId(int id){
		this.id=id;
	}
	public String getName(){
		return name;
	}
	public void setName(String name){
		this.name=name;
	}
	public Husband getHusband(){
		return husband;
	}
	public void setHusband(Husband husband){
		this.husband=husband;
	}
}

HibernateUtil.java

package com.aabnn.util;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
	private static SessionFactory sf;
	static{
		sf=new Configuration().configure().buildSessionFactory();
	}
	public static SessionFactory getSessionFactory(){
		return sf;
	}
}

Test.java

package com.aabnn.test;

import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.classic.Session;

import com.aabnn.util.HibernateUtil;
import com.aabnn.vo.Husband;
import com.aabnn.vo.Wife;

public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		SessionFactory sf=HibernateUtil.getSessionFactory();
		Session sess=sf.openSession();
		Transaction tx=sess.beginTransaction();
		// TODO Auto-generated method stub
		try{
			
			Wife w1=new Wife("cuihua");
			Husband h1=new Husband("huangqiang",w1);
			sess.save(h1);
			tx.commit();
			}catch(Exception e){
				tx.rollback();
			}finally{
				sf.close();
			}
		
	}

}

hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
	"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
	<session-factory>
	<!--mysql connection  -->
		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/hibernate</property>
		<property name="hibernate.connection.username">root</property>
		<property name="hibernate.connection.password">root</property>
		<!--c3p0 connection pool  -->
		<property name="hibernate.c3p0.max_size">20</property>
		<property name="hibernate.c3p0.min_size">2</property>
		<property name="hibernate.c3p0.max_statements">100</property>
		<property name="hibernate.c3p0.idle_test_period">3000</property>
		<property name="hibernate.c3p0.acquire_increment">2</property>
		<property name="hibernate.c3p0.validate">true</property>
		<!-- mysql dialect -->
		<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
		<property name="hibernate.show_sql">true</property>
		<mapping resource="com/aabnn/vo/Husband.hbm.xml" />
		<mapping resource="com/aabnn/vo/Wife.hbm.xml"/>
	</session-factory>
</hibernate-configuration>

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 package="com.aabnn.vo">

	<class name="Husband" table="husband" lazy="true">
		<comment>先映射主键</comment>
		<id name="id" column="id">
			<generator class="identity" />
		</id>	
		<property name="name" type="string" column="name" />
		<join  table="husbandwife" optional="true">
			<key column="husbandid" unique="true" />
			<many-to-one name="wife" class="Wife" column="wifeid" cascade="save-update" not-null="true" unique="true" />
		</join>
	</class>	
</hibernate-mapping>

Wife.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 package="com.aabnn.vo">
	<class	name="Wife" table="wife">
		<id name="id" column="id">
			<generator class="identity"/>
		</id>
		<property name="name" column="name" type="string" />
		<join table="husbandwife"  inverse="true" optional="true">
			<key column="wifeid" unique="true" />
			<many-to-one name="husband" class="Husband" column="husbandid" not-null="true" unique="true" />
		</join>
	</class>
</hibernate-mapping>

mysql数据库

create database hibernate;
create table husband(
id integer unsigned not null auto_increment,
name varchar(45),
primary key(id));
create table wife(
id integer unsigned not null auto_increment,
name varchar(45),
primary key(id));
create table husbandwife(
husbandid integer unsigned not null,
wifeid integer unsigned not null,
primary key(husbandid));