hibernate 组件（Component）映射

1、类Teacher

 public class Teacher {
     private int id;
     private String name;
     private String sex;
     private Address address;
         //省略get/set
 }

2、类Teacher的组件 Address

 public class Address {
     private String addr1;
     private String addr2;
     private String addr3;
     //省略get/set
 }

3、Teacher.hbm.xml

 <hibernate-mapping package="cn.siggy.pojo">
     <class name="Teacher">
         <id name="id">
             <generator class="native"></generator>
         </id>
         <property name="name"/>
         <property name="sex"/>
 8         <!-- 组件 -->
 9         <component name="address" class="Address">
10             <property name="addr1"/>
11             <property name="addr2"/>
12             <property name="addr3"/>
13         </component>
     </class>
 </hibernate-mapping>

4、 测试

 @Test
     public void testSave() throws HibernateException, SerialException, SQLException{
         Session session = null;
         Transaction tx = null;
         try{
             session = HibernateUtil.getSession();
             tx = session.beginTransaction();
             Teacher t = new Teacher();
             t.setName("老裴");
             t.setSex("男");
             Address address = new Address();
             address.setAddr1("西三旗");
             address.setAddr2("西直门");
             address.setAddr3("南六环");
             t.setAddress(address);

             session.save(t);

             tx.commit();

         }catch (HibernateException e) {
             if(tx!=null)
                 tx.rollback();
             e.printStackTrace();
             throw e;
         }finally{
             HibernateUtil.closeSession();
         }
     }