loguserdao.java

基于Struts+Spring+Hibernate的航空票务系统

package com.yc.dao;
import org.hibernate.HibernateException;
import java.util.List;
import java.util.Iterator;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.yc.model.Users;

public class LogUserDao extends HibernateDaoSupport {
	
	private String hql="from Users u where u.accountNo=? and u.password=?";
	private static final Log log=LogFactory.getLog(LogUserDao.class);
	
	protected void initDao()
	{}
	
	public boolean IsUserValid(String userid,String password)
	{
		String[] userlist=new String[2];
		userlist[0]=userid;
		userlist[1]=password;
		List ret=null;
		try
		{
			ret=this.getHibernateTemplate().find(hql,userlist);
		}
		catch(HibernateException e)
		{
			log.error(e.getMessage());
			return false;
		}
		if(ret.size()>0)
			return true;
		else	
		    return false;
	}
	
	public Users getUser(String userid,String password)
	{
		String[] userlist=new String[2];
		userlist[0]=userid;
		userlist[1]=password;
		List ret;
		Iterator it=null;
		try
		{
			ret=this.getHibernateTemplate().find(hql,userlist);
			it=ret.iterator();
			return (Users)it.next();
		}
		catch(HibernateException e)
		{
			log.error(e.getMessage());
			return null;
		}
	}
}