checklogin.java

中间商系统 1 数据库 Access2000 2 版本 jsp2.0+servlet2.4+jstl1.1+Tomcat5.5.9+JDK1.5 3 IDE工具 JBuilder2006

package com.wang.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.wang.bean.*;
public class CheckLogin
    extends HttpServlet
{
    //Initialize global variables
    public void init()
        throws ServletException
    {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        if(request.getParameter("action")!=null)
        {
             request.getSession().removeAttribute("user");
             response.sendRedirect("login.jsp");
        }
        if(request.getParameter("userName")!=null&&request.getParameter("userPwd")!=null)
        {
            String userName = request.getParameter("userName");
            String userPwd = request.getParameter("userPwd");
            DataBean db = new DataBean();
            UserBean ub=db.checkUsersLogin(userName, userPwd);
            request.getSession().setAttribute("user",ub);
            request.getSession().removeAttribute("adminflag");
            request.getSession().setAttribute("adminflag",request.getParameter("adminflag"));
            System.out.println(request.getSession().getAttribute("adminflag").toString());
            db.Close();
            response.sendRedirect("index.jsp");
        }
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy()
    {
    }
}