教师科研管理系统(4)--我的毕业设计

2. Servlet代码：（workmain.java）                                                 

 

package com.maye.suitem.login;

 

import java.io.IOException;

import java.io.PrintWriter;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

 

import javax.servlet.RequestDispatcher;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

 

import com.maye.suitem.Conn.Conn;

import com.maye.suitem.Security.MessageMD5;

import com.maye.suitem.javabeans.Atea;

import com.maye.suitem.Config.System_config;

public class workmain extends HttpServlet {

 

             /**

              * The doGet method of the servlet.

              *

              * This method is called when a form has its tag value method equals to get.

              *

              * @param request the request send by the client to the server

              * @param response the response send by the server to the client

              * @throws ServletException if an error occurred

              * @throws IOException if an error occurred

              */

             public void doGet(HttpServletRequest request, HttpServletResponse response)

                                         throws ServletException, IOException {

 

                           response.setContentType("text/html");

                           response.setCharacterEncoding("UTF-8");

                           request.setCharacterEncoding("UTF-8");

                           PrintWriter out = response.getWriter();

                            String action = request.getParameter("action");

                   if ("zhuxiao".equalsIgnoreCase(action)||"exit".equalsIgnoreCase(action)) {

                   HttpSession session=request.getSession(true);

                     session.invalidate();

                   

                     RequestDispatcher rd = getServletContext().getRequestDispatcher("/index.jsp");

                     rd.forward(request, response);

                 }

             }

 

             /**

              * The doPost method of the servlet.

              *

              * This method is called when a form has its tag value method equals to post.

              *

              * @param request the request send by the client to the server

              * @param response the response send by the server to the client

              * @throws ServletException if an error occurred

              * @throws IOException if an error occurred

              */

             public void doPost(HttpServletRequest request, HttpServletResponse response)

                                         throws ServletException, IOException {

                           request.setCharacterEncoding("UTF-8");

                           response.setContentType("text/xml; charset=UTF-8");

                           response.setCharacterEncoding("UTF-8");

        response.setHeader("Cache-Control", "no-cache");

        PrintWriter out = response.getWriter();

                           HttpSession  session=request.getSession();

                           String action=request.getParameter("action");

                           String leix=request.getParameter("leix");

                          

                           if("login".equals(action)&&"teacher".equals(leix)){

                                         doTeacher(request,response);

                           }

        if("login".equals(action)&&"checker".equals(leix)){

                     doChecker(request,response);

                           }

        if("login".equals(action)&&"manager".equals(leix)){

                     doManager(request,response);

        }

        out.close();

}

 

 

注:以上只是部分代码（略）