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Servlets and Session-ID ( no cookie ... )

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Trying some examples here in 'head first servlets & jsp'.
using JEE 1.5,EL and JSTL.
I am using a form that is doPost.

Wanting to turn off the cookies and do everything myself with
the sessionid - seems difficult to me.
Trying to follow the MVC schema that my Servlet is my controller,
and that is where I should be handling my sessionid.

Using the 'HttpSession session = request.getSession(true);'
in my Servlet, reading on URL rewriting but not quite getting that.
Seems that the cookies are the default, because I get the values
that I except using cookies ...

using the following:
if ( session.isNew() ) { // Session created for the first time ...
} else {

then doing the 'String jSessionId= session.getId();'
should I do some rewriting here? using the response and
do some rewriting and then using the dispatcher ?

the encodeUrl is deprecated ...
I am not sure how to resend the ID to the client everytime,
seen that ofcourse on some sites and I can se that on some sites:

is there a good example somewhere ?

regards, i
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