1 //首先获得SessionFactory的对象
2 SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
3 //然后获得session的对象
4 Session s = sessionFactory.openSession();
5 //其次获得Transaction的对象
6 Transaction transaction = s.beginTransaction();
7 //执行相关的数据库操作:增、删、改、查;
8 session.save(user);
9 session.delete(user);
10 session.update(user);
11 Query<R> query = session.createQuery("from User");//查询
12 List list = query.list();
13 //提交事务
14 transaction.commit();
15 //如果有异常,我们还要作事务的回滚,恢复到操作之前;
16 transaction.rollback();
17 //最后还要关闭session释放资源;
18 session.close();