Just simple question about java HTTP session mechanism...

I have one simple question regarding the java HTTP Session Mechanism.
1) Is there another alternative for the HTTP Session ? If have, what the alternative?
2) I have been acknowledge that HTTP session is same as cookie system and others say have many different, where is the different..
thanks

1) You can always do your own session handling. But why bother when there is one there for you?
2) The issue with sessions is how to identify the user from the request. Each session gets given a session id. The user has to send that session id with every request they make.
The standard way is to use a session cookie, which only lasts as long as the browser session. The cookie with the JSESSIONID is sent with every request, thus the server can identify which session a user is in from their cookie.
Of course you cannot assume that the browser will support cookies, so you need to encode all URLs with the method response.encodeURL(). That method puts the session id into the URL if the browser does not support cookies, or they have them switched off.

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It's generally considered to be in poor taste to cross post..
http://forum.java.sun.com/thread.jsp?thread=518979&forum=14&message=2477645
http://forum.java.sun.com/thread.jsp?thread=518978&forum=423&message=2477642
http://forum.java.sun.com/thread.jsp?thread=518977&forum=32&message=2477639

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