hibernate注解的测试

注解用到的jar包：下载地址

/**

     */

@Test
	public void test1(){
		//必须先在数据库里面创建序列，名字是seq_emp_id
		Session session=new AnnotationConfiguration()
		                  .configure()
		                  .buildSessionFactory()
		                  .openSession();
		Transaction tx=session.beginTransaction();
		Emp1 emp1=new Emp1();
		emp1.setEname("test2");
		emp1.setHiredate(new Date());
		session.save(emp1);
		tx.commit();
	}

	//测试多对一的配置注解
	@Test
	public void test2(){
		Session session=new AnnotationConfiguration()
							.configure()
							.buildSessionFactory()
							.openSession();
		Emp1 emp1=(Emp1) session.get(Emp1.class,7788);
		System.out.println(emp1.getEname()+","+emp1.getDept().getDname());
	}
	
	//级联操作
	@Test
	public void test3(){
		Session session=new AnnotationConfiguration()
							.configure()
							.buildSessionFactory()
							.openSession();
	Transaction tx=session.beginTransaction();
	Dept1 dept1=new Dept1(1,"产品部");
	Emp1 emp1=new Emp1();
	emp1.setEname("Villy");
	emp1.setHiredate(new Date());
	dept1.getEmps().add(emp1);
	emp1.setDept(dept1);
	session.save(dept1);
	tx.commit();
	}