//创建配置对象

        Configuration config = new Configuration().configure();

        //创建服务注册对象

        ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(config.getProperties()).buildServiceRegistry();

        //创建会话工厂对象

        sessionFactory = config.buildSessionFactory(serviceRegistry);

        //会话对象

        session = sessionFactory.openSession();

        //开启事务

        transaction = session.beginTransaction();

        //创建配置对象

        Configuration config = new Configuration().configure();

        //创建服务注册对象

        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(config .getProperties()).build();

        //创建会话工厂对象

        sessionFactory = config.buildSessionFactory(serviceRegistry);

        //会话对象

        session = sessionFactory.openSession();

        //开启事务

        transaction = session.beginTransaction();