authentificateservlet.java.svn-base

远程学生作业提交系统,所用技术JSP,Servelet,Ajax,Web Services,MySql

/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sixtwenty.servlet;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.ArrayList;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;

import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;

import com.sixtwenty.service.LoginService;
import com.sixtwenty.service.StudentService;

import com.sixtwenty.Projects;
import com.sixtwenty.Submissions;

public class AuthentificateServlet extends HttpServlet
{
  //String endpoint = "http://172.23.96.22:8180/axis/services/submit";
  String endpoint = "http://localhost:8080/axis/services/submit";


   public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
    {
        doPost(request, response);
    }

   public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException {
       response.setContentType("text/html");
       PrintWriter out = response.getWriter ();

       try {
           // Get password and login
           String username = new String(request.getParameter("username"));
           String password = new String(request.getParameter("password"));

           Service service = new Service();
           Call call = (Call) service.createCall();

		   SubmitServiceLocator ssl = new SubmitServiceLocator();
		   Submit submit = ssl.getsubmit();

		   Boolean ret = submit.authenticateUser(username, password);


           if(ret.booleanValue()) {

                String accessLevel = submit.accessLevelOfUser(username);
                System.out.println("accessLevel :" +accessLevel);

               //Assumption made (access level for staff as 2)
               if(accessLevel == 2) {
                  System.out.println("Staff Login");

                  String nextJSP = "/jsp/staffpage.jsp";
                  RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
                  request.getSession().setAttribute("username", username);
                  request.getSession().setAttribute("password", password);
                  dispatcher.forward(request, response);
               }

               //Assumption made (access level for student as 1)
               if(accessLevel == 1) {
                  System.out.println("Student Login");

                  String nextJSP = "/jsp/studentpage.jsp";
                  RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
                  request.getSession().setAttribute("username", username);
                  dispatcher.forward(request, response);


               }
               if(accessLevel == 3) {
                  System.out.println("Admin Login");

                  String nextJSP = "/jsp/adminpage.jsp";
                  RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
                  request.getSession().setAttribute("username", username);
                  dispatcher.forward(request, response);


               }

           } else {
                  System.out.println("User unknown");
                  String nextJSP = "/jsp/errorpage.jsp";
                  RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
                  request.getSession().setAttribute("username", username);
                  dispatcher.forward(request, response);
           }

       } catch (Exception e) {
           out.println(e.toString());
       }
   }
}