verifysubmissionservlet.java

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

/*
 * VerifySubmissionServlet.java
 *
 * Created on October 19, 2006, 1:07 AM
 */

package com.sixtwenty.servlet;

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

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.*;

/**
 *
 * @author Balasubramaniam
 * @version
 */
public class VerifySubmissionServlet extends HttpServlet {

    //String endpoint = "http://172.23.96.22:8180/axis/com/sixtwenty";
    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 {
           String submissionId = (String)request.getParameter("subId");

           // To call the remote service
           Submit submit = null;
           try {
               SubmitServiceLocator ssl = new SubmitServiceLocator();
               submit = ssl.getsubmit();
           } catch(Exception e) {
               throw new ServletException(e.toString());
           }

           // To get the staff identifier
           String username = (String)request.getSession().getAttribute("username");

           // If we don't know the username's identifier => access error
           if (username == null || username.equals("")) {
               RequestDispatcher requestDispatcher = getServletContext().getRequestDispatcher("/jsp/errorpage.jsp");
               requestDispatcher.forward(request, response);
               return;
           }

           // If the verification is ok we get all the informations from this submission
           if (submit.verifySubmission(submissionId).equals("true")) {
               Submissions submissions = submit.getSubmission(submissionId);
               request.getSession().setAttribute("submissions", submissions);
           }
            //throw new ServletException("test");
           RequestDispatcher requestDispatcher = getServletContext().getRequestDispatcher("/jsp/verifyassignment.jsp");
           requestDispatcher.forward(request, response);
           return;
       } catch (Exception e) {
           out.println(e.toString());
       }
   }
}