How to test HttpSessionListener

[jami siva]

I created below Listener to track how many sessions are created. However, If I open number of browsers the below sessionCreated() method is executed only once. I thought every brower request treated as a seperate session. If it is true, below sessionCreated() method will call for every newly created session(In this case for every new browser request). Please let me know whether my understanding is right or wrong.

And how to test the below HttpSessionListener.

public class MyHttpSessionListener implements HttpSessionListener {

	static private int activeSessions;

	public int getActiveSessions() {
		return activeSessions;
	}

    public void sessionCreated(HttpSessionEvent se) {
       activeSessions++;
       System.out.println("Session Created....."+activeSessions);
    }

    public void sessionDestroyed(HttpSessionEvent se) {
         activeSessions--;
         System.out.println("Session Destroyed....."+activeSessions);
      }
}

Thanks,
Siva

[Hebert Coelho]

Maybe because your browser is sharing the session.

Try with different browsers, or search in google how to do your browser to create a new session per tab.

[Ankit Garg]

If each request from a browser is treated as a new session, then what's the use of session? Try to open your page from different browsers (like one from Firefox, one from Chrome and one from IE). You'll get different session for each browser...

[jami siva]

Thanks Garg.

I tried with different browsers, one with IE and another with Mozilla, still I am getting only one session.
Apart from this, what should I do.

Thanks,
Siva

[Frits Walraven]

I tried with different browsers, one with IE and another with Mozilla, still I am getting only one session.
Apart from this, what should I do.

How does your web.xml look like?

What URL do you use? Do you use tomcat, if so what version?

Regards,
Frits

[A Phatak]

What is the code in the Servlet that allows you to get the count of activeSessions. I suspect you are stuffing this in the session.setAttribute("activeSessionCOunter", activeSessions);

However, you will need another static method that returns this session counter

public class MyHttpSessionListener implements HttpSessionListener
{
    // all your code here...
    // ...
    public static int getActiveSessions() {
        return activeSessions;
    }
}

// in your HttpServletCode
public void doGet() throws IOException, ServletException {
    // ...
    out.println("total sessions: " + MyHttpSessionListener. getActiveSessions());
    // ...
}

Now you can try this code in multiple browsers ...Chrome, IE, Saffari, or from multiple computers

I figure you will see number increase as sessions join!

jami siva wrote:I created below Listener to track how many sessions are created. However, If I open number of browsers the below sessionCreated() method is executed only once. I thought every brower request treated as a seperate session. If it is true, below sessionCreated() method will call for every newly created session(In this case for every new browser request). Please let me know whether my understanding is right or wrong.

And how to test the below HttpSessionListener.

public class MyHttpSessionListener implements HttpSessionListener {

	static private int activeSessions;

	public int getActiveSessions() {
		return activeSessions;
	}

    public void sessionCreated(HttpSessionEvent se) {
       activeSessions++;
       System.out.println("Session Created....."+activeSessions);
    }

    public void sessionDestroyed(HttpSessionEvent se) {
         activeSessions--;
         System.out.println("Session Destroyed....."+activeSessions);
      }
}

Thanks,
Siva

[Sharad Kharya]

No. Sessions are referenced using cookies, and cookies are set per-client, not per-window.
Same session/session-timeout mechanism will be referred if client is sending requests from various different browser.