cookies

[Ankur Jain Kothari]

hfsj says that cookies can contain name/value string pairs...example whenever i start my gmail page it already contains my name and password...but what does

But you can tell a cookie to stay alive even after the browser shuts down

mean?

i thought cookie is associated with a session and session ends with the shut down of the browser..can anyone clarify

[Ankit Garg]

Cookies and sessions are a different thing. JavaEE uses Cookies to identify clients associated with a particular session (this is just one of the ways to identify a client's session). You can create cookies on the client machine independently of the session. There's no need for a session to be present for sending a cookie with a response...

[Swagato Bhatta]

Ankur Jain Kothari wrote:hfsj says that cookies can contain name/value string pairs...example whenever i start my gmail page it already contains my name and password...but what does

But you can tell a cookie to stay alive even after the browser shuts down

mean?

i thought cookie is associated with a session and session ends with the shut down of the browser..can anyone clarify

Session uses cookies to make stateful conversation. AM I right? ??

Since webcontainers are stateless, cookies are used. Now when browser is shut down or the session ends, the cookie can still sruvive. I think in web.xml you can say for how long you can keep the cookie to stay alive. I am reading right now in the book that it can also be done programetically.. but I have not tried that yet.

Anyhow, yes cookie can stay alive long after your browser is not there. However, a session can be there without cookie. Imagine a situation where the client has deliberately disabled cookie. What happens then? I think you can then use sessionID appened to browser URL ....Am I right? Actually the webconatiner does this for you? However, you have to say it somewhere...umm still studying that....

That is my knowledge so far about this. Hope this helps somehow

[Ankur Jain Kothari]

the age of the cookie can be altered programmatically and not in the web.xml file. Only the age of session can be done both ways.

I think in web.xml you can say for how long you can keep the cookie to stay alive.

[Swagato Bhatta]

Ankur Jain Kothari wrote:the age of the cookie can be altered programmatically and not in the web.xml file. Only the age of session can be done both ways.

I think in web.xml you can say for how long you can keep the cookie to stay alive.

oh yes thanks :-)