1、IdCard. javaprivate int id;private String cardNo;private Person person;Person, javaprivate int id;private String name;private IdCard idCard;<hibernate-mapping><class name=/zcom. demo, hibernate. IdCard，/ table="t_idcard”><id name="id"><generator class="native

2、”/)</id><property name="cardNo/>one-to-one name="person' property-ref=/zidCard?/></class></hibernate-mapping><hibernate-mapping><class name=/zcom. demo, hibernate. Person"/ table="t_person”><id name=id><generator class="nat

3、ive”/)</id>(property name="name"/)<many-to-one name="idCard" unique="true7></class></hibernate-mapping>public class 0ne20neTest extends TestCase public void testSavel() Session session = null;try (session = HibernateUtils. getSessionO ;session. beginT

4、ransaction 0;IdCard idCard = new IdCardO ;idCard. setCardNo(/zl 11111 111 1111");Person person = new PersonO ;person. setName (“女女");person, setIdCard(idCard);不能成功保留，因為IdCard是Transient狀態 session.save(person);session.getTransaction0 mit 0;catch(Except ion e) e.printStackTrace 0;session. get

5、Transaction0. rollbackO ;finally HibernateUtils. closeSession(session);)public void testSave2() Session session = null;try (session = HibernateUtils. getSessionO ;session.beginTransaction 0;IdCard idCard = new IdCardO ;idCard. setCardNo(z/l 11111 111llll"*);session.save(idCard);Person person =

6、new Person 0;person. setName ("女女")；person, setIdCard(idCard);session.save(person);session.getTransaction0 mit 0;catch(Except ion e) e. printStackTrace 0;session. getTransaction0. rollbackO ;finally (HibernateUtils. closeSession(session);)public void testLoadl() Session session = null;try

7、(session = HibernateUtils. getSessionO ;session. beginTransaction 0;Person person = (Person)session, load(Person, class, 2);System, out. println(/zperson. name=，/ + person. getName 0);System, out. print In ("idCard, cardNo ="person. getldCardO. getCardNo0);session.getTransaction0mi10 ;catc

8、h(Except ion e) e.printStackTrace 0;session. getTransaction0. rollbackO ;finally HibernateUtils. closeSession(session);)public void testLoad2() Session session = null;try (session = HibernateUtils. getSessionO ;session. beginTransaction 0;IdCard idCard = (IdCard)session. load(IdCard. class, 1);Syste

9、m, out. println(/zidcard. cardNo=/z + idCard. getCardNo0);System, out. println(z，idcard. person, name="idCard. getPersonO. getName 0);session.getTransaction0 mit 0;catch(Except ion e) e.printStackTrace 0;session. getTransaction0. rollbackO ;finally HibernateUtils. closeSession(session);hibernate 一對一唯一外鍵關聯映射(雙向關聯Person>IdCard)一對一唯一外鍵關聯雙向，需要在另一端(idcard),添加<one-to-one>標簽，指示hibernate如何加載那個關聯對象，是默許依照主鍵加載 person,外鍵關聯映射中，因為兩個實體采納的是person的外鍵保護的關系，因此不能指定主鍵加載person,而要依照person的外鍵加載，因此采納如下映射方式：one-to-