Couple of things you can do, and I'm sure that there are more ideas out there.
First, and probably the easiest,set up a timer in the flex app that gets reset with every http request to the servlet. The timer should be set to less than the servlet timeout, like 1 minute less. When the timer times out have it notify the user that they need to do somthing or the session will timeout. If they do not react within 1 minute then redirect the user to your login page. If they do respond then have the app do some simple request to hold the session. I have a simple hello request in one of my apps just for this. Another approach I use is to send login info as headers on every request to the server. Then if the session has been lost I can transparently log the user back in and start a new session. This is only a good idea if the requests are secure. Hope that gives you some ideas. Paul --- In flexcoders@yahoogroups.com, "pgp.coppens" <[EMAIL PROTECTED]> wrote: > > Hello Flex Fans, > > I am new to Flex, so upfront apologies if the question does not make > any sense or is so trivial I should be ashamed to ask. > > Anyway... I want to set up communication with a Tomcat servlet service > (no FDS) that sits behind forms based authentication. > > I do manage to use HTTPService to do authentication by posting to the > j_security url and then invoke the service, but the thing that is > bothering me a bit is what to do when the servlet session times out. > > I guess I could check the result of each invocation to see whether it > returns the login form iso the expected reply and then just > reauthenticate. That does seem somewhat of a hassle though. > > Anyone any guidance on this? Is this the "right" approach? Is there > any open/demo source code available? > > Many thanks indeed! > > Peter >
