What significant differences are there between jsp and jspx? The only
one that i know of is that jsp is html based and jspx is xml based.
jspx extension indicates that the page is a well formed XML. This is
meaningful for the 2.4 Servlet Spec. A jspx page is also refered to as
a JSP Document, vs. a jsp which is a page. Another extension in the
mix is jspf, which is basically a JSP fragment that you can include in
the pages/documents.
Google around for more information on how to use these extensions, and
how they fit in the web.xml.
-cheers,
Manish