Spring Framework is the most basic project in the Spring ecosystem and the foundation of other projects
Core Container : The core container. First of all, when it comes to the most core module in the Spring framework, the core container, it can be seen that it is a container that holds things, and it holds objects in Java.
AOP: Aspect Oriented Programming. How do you program. design concept.
Aspects: The realization of AOP thought.
Data Access: Data Access
Data Integration: Data Integration, including other technologies.
Transcations
Web: Web Development
Test: unit testing and integration testing.