Spring and portlet Application

[Shaila Goyal]

Hi All,
I'm working on a portlet application with my team, we are looking for framework options to migrate our application to a suitable one.

most of the portlets we've on our site display HTML content stored in a content management system currently which is provided by Novell framework.Other do some processing based upon user inputs.

I'm looking for detailed documentation on Spring framework features so that we can decide upon to use or not to use Spring for our application.
any help is appreciated.

Regards,
Shaila