hibernate-一对多双向

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1、Classes.javaprivateintid;privateStringname;privateSetstudents;Student.javaprivateintid;privateStringname;privateClassesclasses;

2、name="name"/>

3、d>publicclassOne2ManyTestextendsTestCase{publicvoidtestSave1(){Sessionsession=null;try{session=HibernateUtils.getSession();session.beginTransaction();Studentstudent1=new

4、Student();student1.setName("10");session.save(student1);Studentstudent2=newStudent();student2.setName("祖儿");session.save(student2);Setstudents=newHashSet();students.add(student1);students.add(student2);Classesclasses=newClasses();classes.setName("2012A");classes.se

5、tStudents(students);//可以正确保存session.save(classes);session.getTransaction().commit();}catch(Exceptione){e.printStackTrace();session.getTransaction().rollback();}finally{HibernateUtils.closeSession(session);}}publicvoidtestSave2(){Sessionsession=null;try{session=Hibe

6、rnateUtils.getSession();session.beginTransaction();Classesclasses=newClasses();classes.setName("2012A");session.save(classes);Studentstudent1=newStudent();student1.setName("飞飞");student1.setClasses(classes);session.save(student1);Studentstudent2=newStudent();studen

7、t2.setName("菲菲");student2.setClasses(classes);session.save(student2);session.getTransaction().commit();}catch(Exceptione){e.printStackTrace();session.getTransaction().rollback();}finally{HibernateUtils.closeSession(session);}}publicvoidtestSave3(){Sessionsession=nu

8、ll;try{session=HibernateUtils.getSession();session.beginTransaction();Classesclasses=newClasses();classes.setName("2012A");Studentstudent1=newStu