Jdeveloper 11g Release1 supports .jspx page but Release2 supports both jspx and Facelets
.jsff (JSF fragments) page is a fragment of JSF(Java Server Faces) page, sometimes pages become to much complex and large and it is not easy to edit those pages, in that case, it should be divided in some fragments.
JSF page can be broken into some smaller page fragments to avoid difficulties in editing and maintaining.
Page fragments can’t run independently, it requires a base of .jsf(JSF page) or .jspx (JSP/XML)
- Facelets supports HTML and XHTML for designing
- Faster execution than JSP
- Supports Facelets tab library with JSF and JSTL tag lib
JSP and JSPX-
The main difference I know is that JSP supports HTML and JSPX is XML variant of JSP. .jspx supports more component than JSP page and also compatible with JSF page fragments.
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Technical Lead working on Oracle ADF