src/com/service/loginService.java

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package com.service;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpSession;

import org.directwebremoting.WebContext;
import org.directwebremoting.WebContextFactory;


import com.dao.DB;
import com.orm.Tguanliyuan;
import com.orm.Tmaijia;
import com.util.Cart;
import com.orm.Tdizhi;
import com.orm.Tleibie;
public class loginService
{
	public String login(String userName,String userPw,int userType)
	{
		String result="no";
		if(userType==1)//管理员登录
		{
			String sql="select * from guanliyuan where guanliyuanName=? and guanliyuanPass=?";
			Object[] params={userName,userPw};
			DB mydb=new DB();
			mydb.doPstm(sql, params);
			try 
			{
				ResultSet rs=mydb.getRs();
				boolean mark=(rs==null||!rs.next( )?false:true);
				if(mark==false)
				{
					 result="no";
				}
				else
				{
					result="yes";
					Tguanliyuan guanliyuan=new Tguanliyuan();
					guanliyuan.setguanliyuanID(rs.getInt("guanliyuanID"));
					guanliyuan.setguanliyuanName(rs.getString("guanliyuanName"));
					guanliyuan.setguanliyuanPass(rs.getString("guanliyuanPass"));
					WebContext ctx = WebContextFactory.get(); 
					HttpSession session=ctx.getSession(); 
					session.setAttribute("userType", 1);
		            session.setAttribute("guanliyuan", guanliyuan);
				}
				rs.close();
			} 
			catch (SQLException e)
			{
				System.out.println("登陆失败");
				e.printStackTrace();
			}
			finally
			{
				mydb.closed();