checklogin.java~11~

基于b/s模式的jsp在线考试系统

package com.gton.servlet.web;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.gton.bean.*;
import com.gton.bean.db.DataBean;

public class CheckLogin extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        DataBean db = new DataBean();
        UserBean ub = new UserBean();

        ub.setUsers_Name(request.getParameter("Users_Name"));
        ub.setUsers_Pwd(request.getParameter("Users_Pwd"));
        if (db.checkUserLogin(ub)) {
            request.getSession().removeAttribute("user");
            request.getSession().removeAttribute("name");
            request.getSession().setAttribute("user", db.getUserBean(ub));
            request.getSession().setAttribute("name",
                                              request.getParameter("Users_Name"));
        }
        request.getRequestDispatcher("main.jsp").forward(request, response);
    }

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

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