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();
        }
    }