java，Session session = HibernateUtil.getSessionFactory().openSession();，Transaction tx = null;，try {， tx = session.beginTransaction();， List users = session.createQuery("from User").list();， for (User user : users) {， System.out.println("User: " + user.getName());， }， tx.commit();，} catch (Exception e) {， if (tx != null) {， tx.rollback();， }， e.printStackTrace();，} finally {， session.close();，}，``