Hibernate更新某些字段 update方法

publicvoid update(){ 

        Session session =  HibernateUitl.getSessionFactory().getCurrentSession(); 

        session.beginTransaction(); 

        Query query = session.createQuery("update Teacher t set t.name = 'yangtianb' where id = 3"); 

        query.executeUpdate(); 

        session.getTransaction().commit(); 

    }