Spring is a powerful open source, loosely coupled, light weight, java based application framework meant for reducing the complexity of developing enterprise level applications. This framework is also called as the "framework of frameworks" as spring provides support to various other important frameworks like JSF, Hibernate, Structs, EJB etc.
There are around 20 modules which are generalized into the following types:
- Core Container
- Data Access/Integration
- Web
- AOP (Aspect Oriented Programming)
- Instrumentation
- Messaging
- Test
