userdaoimpl.java

本程序所写的排课

package com.briup.dao.impl;

import static com.briup.common.HibernateSessionFactory.getSession;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.briup.bean.Student;
import com.briup.bean.User;
import com.briup.dao.IUserDao;

public class UserDaoImpl implements IUserDao{

	public User findUser(String username, String password) throws Exception{
		
		Session session = getSession();
		String hql = "from com.briup.bean.User where username = '"+username+"'and password = '"+password+"'";
		Query query = session.createQuery(hql);
		List<User> list = query.list();
		User user = new User();
		if(list.size()==0)
			return null;
		user = list.get(0);
		session.close();
		return user;
	}
	
	public User findUser(String username)
	{
		Session session = getSession();
		String hql = "from com.briup.bean.User where username = '"+username+"'";
		Query query = session.createQuery(hql);
		List<User> list = query.list();
		User user = new User();
		if(list.size() == 0)
			return null;
		user = list.get(0);
		session.close();
		return user;
	}

	public void saveStudent(Student student) throws Exception{
		
		Session session = getSession();
		Transaction trans = session.beginTransaction();
		session.saveOrUpdate(student);
		trans.commit();
		session.close();
	}

	public void saveUser(User user) throws Exception{
		
		Session session = getSession();
		Transaction trans = session.beginTransaction();
		session.saveOrUpdate(user);
		trans.commit();
		session.close();
	}

}