hibernate继承HibernateDaoSupport

package com.aowin.dao;

import java.util.List;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.aowin.model.User;

public class UserDao extends HibernateDaoSupport implements IUserDao{

	public User findByUsernameAndPassword(String username, String password){
		String hql = "from com.aowin.model.User u where u.username=? and u.password=?";
//		Query query = this.getSession().createQuery(hql);
//		query.setString(0, username);
//		query.setString(1, password);
//		List list = query.list();
		List list = this.getHibernateTemplate().find(hql, new Object[]{username, password});
		if(list.isEmpty()){
			return null;
		}else{
			return (User) list.get(0);
		}
	}
	
	public void deleteById(Integer id) {
//		User user = (User) this.getSession().get(User.class, id);
//		this.getSession().delete(user);
		User user = (User) this.getHibernateTemplate().get(User.class, id);
		this.getHibernateTemplate().delete(user);
	}

	public List<User> findAll() {
		String hql = "from com.aowin.model.User";
//		return this.getSession().createQuery(hql).list();
		return this.getHibernateTemplate().find(hql);
	}

	public User findById(Integer id) {
		return (User) this.getHibernateTemplate().get(User.class, id);
	}

	public void save(User user) {
		this.getHibernateTemplate().save(user);
	}

	public void update(User user) {
		this.getSession().update(user);
	}

}