how to make a file manager system

I want to make a file manager system (Tree structure )using servlets or JSP? how do I do session tracking.
also please specify which one JSP or servlets will be more faster when excecuted?
Jinesh

JSP files compile to servlets so there is no speed difference. I'm not sure what you want to do with your "file manager", though. Can you tell us a few stories about how it will be used.