Hibernate的many-to-many双向关联的配置办法

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<?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="cn.opfo.app.domain">
<class name="Person" table="t_person">
  <id name="id" type="java.lang.Integer">
   <column name="ID" />
   <generator class="native" />
  </id>
  <property generated="never" lazy="false" name="name"
   type="java.lang.String">
   <column name="NAME" />
  </property>
  <property generated="never" lazy="false" name="passowrd"
   type="int">
   <column name="PASSOWRD" />
  </property>
  <property generated="never" lazy="false" name="birthDay"
   type="java.util.Date">
   <column name="BIRTHDAY" />
  </property>
  
  <set name="addressSet" cascade="all" inverse="false" table="person_join_address">
   
   <key column="p_id" />
   
   <many-to-manyclass="Address" column="a_id"/>
  </set>

</class>
<class name="Address" table="t_address">
  <id name="id">
   <column name="ID" />
   <generator class="native"/>
  </id>
  <property generated="never" lazy="false" name="descs"
   type="java.lang.String">
   <column name="DESCS" />
  </property>
  <property generated="never" lazy="false" name="code" type="int">
   <column name="CODE" />
  </property>
  
  <set name="personSet" cascade="all" inverse="true" table="person_join_address">
   
   <key column="a_id"/>
   
   <many-to-many class="Person"column="p_id"/>
  </set>
</class>
</hibernate-mapping>

/*
* Junit测试代码
*/

public class HibernateJUnitTest {
private SessionFactory sFactory;
Session session;
Transaction tx;
/*
* 测试前进行初始化
*/

@Before
public void setUp() throws Exception {
  System.out.println("-----初始化数据------");
  Configuration config = new Configuration().configure();
  // ServiceRegistry sr = new
  // StandardServiceRegistryBuilder().applySettings(config.getProperties()).build();
  // sFactory = config.buildSessionFactory(sr);
  sFactory = config.buildSessionFactory();
  session = sFactory.openSession();
}

/*
* 测试之后释放数据
*/
@After
public void tearDown() throws Exception {
  System.out.println("-----释放化数据------");
  if (session.isOpen()) {
   session.close();
  }
}

@Test
public void testOne2OneII(){
  //定义人的集合
  Set<Person> pSet = new HashSet<>();
  Person p1 = new Person("wanglifu",134324,new Date());
  Person p2 = new Person("wanglili",434321,new Date());
  pSet.add(p1);
  pSet.add(p2);

  //定义地址的集合
  Set<Address> aSet = new HashSet<Address>();
  Address a1 = new Address("江苏盐城", 224562);
  Address a2 = new Address("江苏南京", 224556);
  aSet.add(a1);
  aSet.add(a2);

  //每个人和多个地址关联
  p1.setAddressSet(aSet);
  p2.setAddressSet(aSet);

  //每个地址与多人建立关联
//  a1.setPersonSet(pSet);
//  a2.setPersonSet(pSet);


  tx = session.beginTransaction();

  //因为有级联，所以无需二个对象都来提交
  //此处在配置文件中需要在Person表的Set配置片段设定inverse="false",即由Person表管理级联关系
  //而在Address对象的Set配置片段设定inverse="true",即同意级联关系交给Person对象进行管理
  //二者设定相反，由设定inverse="false"的一方控制级联关系
  //反之亦然
  session.persist(p1);
  session.persist(p2);
//  session.persist(a1);
//  session.persist(a2);

  tx.commit();
}

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