HttpSessionContext and HttpSession

Question

hi,
With all the knowledge i gathered from here and there about sessions - to be frank i am very confused.
1>Can someone please explain to me why and how HTTPSEssionContext is used
2> I am using about 6 servlets, where each servlet is creating a separate dynamic web page.
The first servlet is one which creates a login page. Once i create the login page, i get the id which has to be carried through the different servlets. This is easy, as i can pass query string parameter. My problem is that in between the third and the fourth servlet, i call a static html page. Once i get the static page, then i am not able to pass the id anymore. Can someone tell me how to do it?
3>The command
HttpSession sesStore = req.getSession(true);
Is this given when i create a new session. ie) in the above example, the first servlet. When the second servlet is called,
HttpSession sesStore = req.getSession(false);
i have to change the true to false, Right
A bit confused
Please throw some light
Pratibha

Answer 1

SessionContext is used to figure out the environment in which the servlet is running. For example, if there are configuration variables that have been set, you can call
String val = getInitParameter( "ParmName" );Going to a static HTML page is not a problem if you use cookies for storing the session key. The browser doesn't know what is dynamic and what is static so it passes the cookie along on every request, so you have no worries there.
As far as the getSession() methods, I have had no end of frustration with those. I have never seen them actually work according to documentation. As far as I can tell, getSession( true ) always creates a new session, but the docs suggest that it won't make a new one if there is already one there. I have had nothing but inconsistent results with the getSession() method (no parameters).
On my projects I have ended up doing a getSession(true) during login, and then getSession(false) for the rest of the time.