實體：

package bi.one2one.jointable;

public class Husband {
	private int id;
	private String name;
	private Wife wife;

	public Husband() {

	}

	public Husband(int id, String name, Wife wife) {
		super();
		this.id = id;
		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;
	}

}

package bi.one2one.jointable;

public class Wife {
	private int id;
	private String name;
	private Husband husband;

	public Wife() {

	}

	public Wife(int id, String name, Husband husband) {
		super();
		this.id = id;
		this.name = name;
		this.husband = husband;
	}

	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 Husband getHusband() {
		return husband;
	}

	public void setHusband(Husband husband) {
		this.husband = husband;
	}

}
 

<hibernate-mapping>
	<class name="bi.one2one.jointable.Husband">
		<id name="id" column="hid">
			<generator class="native" />
		</id>
		<property name="name" type="string" column="name"></property>
		
		<join table="husbandwife" optional="true">
			<key column="hid" unique="true"></key>
			<many-to-one name="wife" unique="true" not-null="true" column="wid"></many-to-one>
		</join>
	</class>

</hibernate-mapping>
<hibernate-mapping>
	<class name="bi.one2one.jointable.Wife">
		<id name="id" column="wid">
			<generator class="native" />
		</id>
		<property name="name" type="string" column="name"></property>
		
		<join table="husbandwife" inverse="true" optional="true">
			<key column="wid" unique="true"></key>
			<many-to-one name="husband" unique="true" not-null="true" column="hid"></many-to-one>
		</join>
	</class>

</hibernate-mapping>
 

public class Test {
	@org.junit.Test
	public void testAdd() {
		SessionFactory sf = HibernateUtil.getSessionFactory();
		Session session = sf.getCurrentSession();
		session.beginTransaction();
		
		Wife wife = new Wife();
		wife.setName("wife");
		//wife.setHusband(husband);
		
		Husband husband = new Husband();
		husband.setName("husband");
		husband.setWife(wife);
		
		session.save(husband);
		session.save(wife);
		
		
		session.beginTransaction().commit();

	}
}
 

Hibernate: insert into Husband (name) values (?)
Hibernate: insert into Wife (name) values (?)
Hibernate: insert into husbandwife (wid, hid) values (?, ?)