package qq.dao.hibernate;import java.util.List;import org.hibernate.*;import qq.entity.User;public class ServiceDaoImHbn implements IServiceDao {	public User addUser() {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		User user = new User(" ", " ");		s.save(user);		s.flush();		user.setName(String.valueOf(user.getId()));		user.setPwd(String.valueOf(user.getId()));		user.setIcon("1");		t.commit();		return user;	}	public void delUser(Long id) {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		User user = this.getUser(id);		if(user!=null){			s.delete(user);		}		t.commit();	}	public List<User> getAllUser() {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		Query q = s.createQuery("from User");		List list = q.list();		t.commit();		return list;	}	public User getUser(Long id) {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		User user = null;		user = (User) s.createQuery("from User where id=? ").setLong(0, id)				.uniqueResult();		t.commit();		return user;	}	public User getUser(Long id, String pwd) {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		User user = null;		user = (User) s.createQuery("from User where id=? and pwd=?")					.setLong(0, id).setString(1, pwd)					.uniqueResult();		t.commit();		return user;	}	public int getUserCount() {		return getAllUser().size();	}	public void updatePwd(Long id, String oldPwd, String newPwd) {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		User user = getUser(id, oldPwd);		if (user != null) {			user.setPwd(newPwd);			try {				s.saveOrUpdate(user);				t.commit();			} catch (HibernateException e) {				e.printStackTrace();				throw new RuntimeException(e.getMessage());			}		}	}	public void updateUser(User user) {		Session s = HibernateUtil.getSession();		Transaction t = s.beginTransaction();		try {			s.saveOrUpdate(user);		} catch (HibernateException e) {			e.printStackTrace();			throw new RuntimeException(e.getMessage());		}		t.commit();	}	public static void main(String[] args) {		ServiceDaoImHbn dao = new ServiceDaoImHbn();//		 User user=dao.addUser();//		 System.out.println(user.getId()+":"+user.getName());//		System.out.println(dao.getAllUser().size());//		 dao.updatePwd(1002L, "3542", "11920");//		 System.out.println(dao.getUser(1002L).getPwd());		User user=dao.getUser(1000L);		user.setIcon("22");		dao.updateUser(user);	}}