Do the same with phaseListener. Register your phaseListener and check the login information on the Before Render Response phase. If the session bean that holds the user information is not initialized, redirect the page flow to the login page.
If you still miss the Struts way to go, it is an article about it:
http://blog.exadel.com/?p=19 --
Sergey :
http://jsfTutorials.net [ February 24, 2006: Message edited by: Sergey Smirnov ]