JSF(front WebGUI)+Spring(Business Logic)+Hibernate(Persistence service)??

Question

To implement a well designed product with module decoupling,some friends suggest me to use the following architecture:
JSF(front WebGUI)+Spring(Business Logic)+Hibernate(Persistence service)?
I was puzzled that whether Spring needed or not??What's especial feature does Spring own that JSF does not have?What's the benefit of integration of JSF and Spring?
Your reply will be appreciated greatly.
Thanks a lot!

Answer 1

Using Spring provides some major benefits; among these are:
- Spring provides an abstraction layer for easy integration of different persistence layers (e.g. Hibernate, which comes integrated out of the box) and for easy database access
- It provides an easy-to-use AOP framework based on dynamic proxying and byte code enhancing via CGLIB
- IMHO most important: Spring provides an Inversion of Control container (see http://martinfowler.com/articles/injection.html) which enables you to remove references to implementation classes from your code and thus facilitates component based architectures.
By the way, we developed a Spring/JSF integration solution (for source code, documentation and an example application see http://sourceforge.net/projects/jsf-spring). It wraps the JSF context into a Spring context and thus merges them. This way, the JSF context becomes part of Spring and vice versa. This is done in a implementation independent way so that it can be used with any JSF implementation.