logindao.java

struts + hibernate ,简单的实现了登录

package com.buat.hibernate.dao;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Example;

/**
 * Data access object (DAO) for domain model class Login.
 * 
 * @see com.buat.hibernate.dao.Login
 * @author MyEclipse Persistence Tools
 */

public class LoginDAO extends BaseHibernateDAO {
	public String getPassword(String username){
		Session session=this.getSession();
		Query query=session.createQuery("select userpass from Login where username=?");
		query.setString(0, username);
		List list=query.list();
		if(list.size()>0){
			return (String)list.get(0);
		}
		return null;
	}
}