Aspect-oriented programming (AOP) is a key component of Spring Framework. This provides a new way to think about the structure of a program. AOP can be implemented in Java and Kotlin. It can be configured in the bean.

AOP splits program logic into certain parts, called affirmed concerns. In any enterprise application, there are cross-cutting concerns, which should to be separate from the basic business logic. Logging, transaction handling, performance observing, and security are known as cross-cutting concerns within the application.