I'm a newbie in Spring, I read only some info from the webpage.
I read in the feature list:
Core support for dependency injection, transaction management, web applications, data access, messaging, testing and more.
I would develope a modular web application. I want to add a jar with new feature and webpages without needing to re-deploy a war or restart an application server. I'm building a little framework for doing it, but it's more difficult.
Is your book a good starting-point to learn Spring and are there some hints/tutorial/example that can help me in the project i mentioned?
It sounds to me like Spring Dynamic Modules might help you. If you are just starting with Spring, don't start with Spring DM. You'll need to understand Spring Core before you understand Spring DM. I haven't read the book, but looking at the TOC, I think it covers Spring Core quite well