MyServlet.java Source code

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Here is the source code for MyServlet.java

Source

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

public class MyServlet extends HttpServlet {

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/html");
        PrintWriter out = res.getWriter();

        HttpSession session = req.getSession();

        Integer count = (Integer) session.getAttribute("tracker.count");
        if (count == null)
            count = new Integer(1);
        else
            count = new Integer(count.intValue() + 1);
        session.setAttribute("tracker.count", count);

        out.println("<HTML><HEAD><TITLE>SessionTracker</TITLE></HEAD>");
        out.println("<BODY><H1>Session Tracking Demo</H1>");

        out.println("You've visited this page " + count + ((count.intValue() == 1) ? " time." : " times."));

        out.println("<P>");

        out.println("<H2>Here is your session data:</H2>");
        Enumeration e = session.getAttributeNames();
        while (e.hasMoreElements()) {
            String name = (String) e.nextElement();
            out.println(name + ": " + session.getAttribute(name) + "<BR>");
        }
        out.println("</BODY></HTML>");
    }
}