Thanks Chuck and Jorge... My English is not so great and maybe my questions did not had good grammatical form. Chuck thanks for answer, and I know what cookie is :) but I was confused... Just for practice I created two jsp, one calls another through form tag. And after that I created one servlet who prints all cookies. Than for experiment I run jsp A who on-click called (opens) jsp B, than after that I run servlet C to print current cookies and it printed JSESSIONID cookie. I was confused what is relation between session (HttpSession) and JSESSIONID cookie because JSESSIONID has "session" in it's name and through my cookie-printing servlet I saw that JSESSIONID is cookie? And is there in-memory cookie which generates on every get and post request? I thought that this "Tomcat in-memory (session) cookie" which I am looking for is JSESSIONID. I could print it value but I was wondering could I change it value? Or add more values to this cookie? In manual Chuck gave me I found this: "Session tracking through HTTP cookies is the most used session tracking mechanism and is required to be supported by all servlet containers. The container sends a cookie to the client. The client will then return the cookie on each subsequent request to the server, unambiguously associating the request with a session. The name of the session tracking cookie must be JSESSIONID." So after my all my dilemmas JSESSIONID is simple cookie! But I still do not know is this the cookie which exists only when browser is opened because I closed browser and run my cookie-printing servlet which printed this cookie again?! Jorge, thanks, you cleared some of my dilemmas but I still have few... :) You said that through the HttpSession object I can access the cookies and you said and that JSESSIONID attribute is handled by Tomcat but you said "It is enough to add the attribute(s) you will later use." Does this means that I can add more values to JSESSIONID cookie?! If I can this is great, it solves my problem, I can check with my second servlet is JSESSIONID present and I can check does it contains my value and if it does I redirect, if it doesn't I inform user. -- View this message in context: http://www.nabble.com/Tomcat-in-memory-%28session%29-cookie-tp22060645p22067936.html Sent from the Tomcat - User mailing list archive at Nabble.com.
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