Spring Framework

The Spring Framework is a Java platform that provides comprehensive infrastructure support for developing Java applications. Spring handles the infrastructure part so you can focus on your application part. Inside itself, Spring Framework codifies formalized design patterns as first-class objects that you can integrate into your own application(s) without worrying too much about how they work in backend.

At present, Spring Framework consists of features organized into about 20 modules. These modules are grouped into Core Container, Data Access/Integration, Web, AOP (Aspect Oriented Programming), Instrumentation, Messaging, and Test, as shown in the following diagram.