Hi !
I am using the class HttpSession for session tracking. I have a simple class
which just keeps a count and displays it.
When i run it in a browser, and hit refresh button, the count is incremented
correctly.
But if i open another window, the count restarts from 1. I was expecting
that even in the new window, the count will be maintained.
The code is :
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
public class sessionTrackingApiCount extends HttpServlet
{
PrintWriter out;
Integer count;
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
res.setContentType("text/html");
out = res.getWriter();
HttpSession session = req.getSession(true);
count = (Integer) session.getValue("tracker.count");
if(count == null)
{
count =new Integer(1);
}
else
{
count = new Integer(count.intValue() + 1);
}
session.putValue("tracker.count",count);
out.println("<HEAD><TITLE> Session Tracking using session tracking
API.</HEAD></TITLE>");
out.println("<BODY>");
out.println("You have visited this page " + count +
((count.intValue() ==1) ? "time." : "times."));
out.println("<P>");
out.println("<h2>Your session data : </h2>");
String[] names = session.getValueNames();
for(int i = 0; i < names.length;i++)
{
out.println(names[i] +" : " + session.getValue(names[i]) +
"<BR>");
}
out.println("</BODY></HTML>");
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
doGet(req,res);
}
public String getServletInfo()
{
return " Servlet using session tracking API for session tracking.
";
}
public void destroy()
{
}
}
Can anyone please point out my mistake?
Regards
Sameer
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