Answer Posted / sridhar

Best Approaches are HttpSession and URL Rewriting.....
in HttpSession when client sends the request to the server first time session object will be created.
HttpSession ses=Request.getSession(true);//if session is not created a new session will be created and JsessionId is sent to the client.if session is already created existed Jsession Id send to the client.
HttpSession ses=Request.getSession(false);//if session is already created the Jsessionid will send to the client
if not it will not create Session object.

If browser doesn't support cookies the appln will not work properly.
So to avoid this problem We can use UrlRewriting........

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