Thanks a lot Bernhard, this is a pretty complete explanation! Michał.
> -----Original Message----- > From: Bernhard Slominski [mailto:[EMAIL PROTECTED] > Sent: Thursday, September 29, 2005 6:25 PM > To: 'Tomcat Users List' > Subject: AW: session state preserved across different applications > > Hi Michael, > > this comes up every so often, so here is just the answer, > which I posted some time ago: > > First of all the session is ALWAYS on application scope, this > is not an Tomcat specific behaviour but a requirement of the > Specification: > "SRV.7.3 Session Scope > HttpSession objects must be scoped at the application (or > servlet context) level. > The underlying mechanism, such as the cookie used to > establish the session, can be the same for different > contexts, but the object referenced, including the attributes > in that object, must never be shared between contexts by the > container." > > So there is no way around this, if the sessions were > replicated across the applications it would violate the specification. > > When you enable crossConext for your application: > <Context crossContext="true" docBase="testapp" path="/testapp" > reloadable="true"> > </Context> > > you can get the context for another application: > ServletContext context2 = context.getContext("/testapp"); > > and set attributes: > context2.setAttribute("test","JSP is great!"); > > But you cannot get to the session in the other application. > > So what you can do is implement the session swapping on your > own (Cookies, via the Database) or merge your applications into one. > > Some links from the Sun Forums: > http://forum.java.sun.com/thread.jsp?forum=33&thread=259394 > http://forum.java.sun.com/thread.jsp?forum=45&thread=492484 > http://forum.java.sun.com/thread.jsp?forum=33&thread=318569 > > Cheers Bernhard > > > > -----Ursprüngliche Nachricht----- > > Von: Michal Kwiatek [mailto:[EMAIL PROTECTED] > > Gesendet: Donnerstag, 29. September 2005 15:34 > > An: Tomcat Users List > > Betreff: session state preserved across different applications > > > > > > Dear all, > > > > How is it possible to preserve session state across different > > applications deployed in tomcat? > > > > I'm pretty sure I saw it somewhere, but I can't remember where it > > was... > > > > Thanks in advance, > > Michał. > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
