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public void QueryByPage(int pageSize) {
   		SessionFactory sf = null;		Session session = null;		Transaction ts = null;		try {
   			sf = HibernateUtil.getSessionFactory();// SessionFactory单态模式			session = sf.getCurrentSession(); // 保证每个读写线程有唯一的session实例			ts = session.beginTransaction();			Query query = session.createQuery("select count(*) from User u ");			Number cnts = (Number) query.uniqueResult();			int UserCount = cnts.intValue();			int pageCount = 0;			pageCount = UserCount / pageSize;			if (UserCount % pageSize != 0) {
   				pageCount++;			}			Query query1 = session.createQuery("from User u");			for (int i = 0; i < pageCount; i++) {
   				System.out.println("第" + i + "页");				query1.setFirstResult(i * pageSize);				query1.setMaxResults(pageSize);				List
   
     us = query1.list();				for (User u : us) {
   					System.out.println(u.toString());				}			}			ts.commit();		} catch (HibernateException e) {
   			// TODO Auto-generated catch block			e.printStackTrace();			if (ts != null) {
   				ts.rollback();			}		} finally {
   			// 关闭session			// session.close();			// sf.close();		}	}
   

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