t3双向多对

<?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> <class name="com.tudou.hibernates.e3.Course" table="tb_course"> <id name="cid" type="java.lang.Integer" column="cid"> <generator class="native" /> </id> <property name="courseName"></property> <set name="students" table="stu_course" > <key> <column name="cid"></column> </key> <many-to-many class="com.tudou.hibernates.e3.Student" column="stu_id" /> </set> </class> </hibernate-mapping>
<?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> <class name="com.tudou.hibernates.e3.Student" table="tb_student"> <id name="stu_id" type="java.lang.Integer" column="stu_id"> <generator class="native"> </generator> </id> <property name="stuName" /> <set name="course" table="stu_course" cascade="save-update"> <key> <column name="stu_id"></column> </key> <many-to-many class="com.tudou.hibernates.e3.Course" column="cid" /> </set> </class> </hibernate-mapping>