Hibernate课程 初探一对多映射3-3 单向多对一的测试

public static void testManyToOne(){ ???????Student stu1 = new Student("小明","男"); ???????Student stu2 = new Student("小红","女"); ???????Grade grad1 = new Grade("java三班","java三班"); ???????stu1.setGrade(grad1); ???????stu2.setGrade(grad1); ???????Session ses1 = HibernateUtil.getSession(); ???????Transaction tran = ses1.beginTransaction(); ???????ses1.save(stu1); ???????ses1.save(stu2); ???????ses1.save(grad1); ???????tran.commit(); ???????HibernateUtil.closeSession(ses1); ???}