Dr R Anurekha: Session Management using HttpSession

Program to demonstrate session management using HttpSession

// Session management

import javax.servlet.http.*;

import javax.servlet.*;

import java.io.*;

import java.util.*;

public class SessionMgt extends HttpServlet

{

private int counter = 0;

public void doGet(HttpServletRequest req,HttpServletResponse res)

throws ServletException, IOException

{

//setting the content type

res.setContentType("text/html");

//create the stream to write the data

PrintWriter pw=res.getWriter();

counter++;

//writing html in the stream

pw.println("<html>");

pw.println("<head>");

pw.println("<title>Session</title>");

pw.println("</head>");

pw.println("<body><h3>");

pw.println("<center>");

pw.println("<h2>Servlet Session Management</h2><hr/><br/>");

HttpSession hs = req.getSession(true);

// Display date/time of last access.

Date dt = (Date)hs.getAttribute("date");

if(dt != null)

{

pw.println("Last access: " + dt + "<br/><br/>");

}

// Display current date/time

dt = new Date();

hs.setAttribute("date", dt);

pw.println("Current date: " + dt+ "<br/><br/>");

pw.println("<hr/>Hit Count = "+counter);

pw.println("</center>");

pw.println("</h3></body></html>");

//closing the stream

pw.close();

}

Dr R Anurekha