What are Spring Annotations and how do they work?

What are Spring Annotations and how do they work?

Spring Annotations are metadata that provide information about the configuration and behavior of Spring components. They help in defining beans, configuring dependency injection, and managing application contexts.

Can you give me some examples of commonly used Spring Annotations?

Sure! Some commonly used Spring Annotations include @Component, @Service, @Repository, and @Controller. Each serves a specific purpose in the Spring framework.

How do I create a custom annotation in Spring?

To create a custom annotation in Spring, you define an interface with the @interface keyword, and you can also specify retention policy and target using @Retention and @Target annotations.

What is the difference between @Component and @Service?

The @Component annotation is a generic stereotype for any Spring-managed component, while @Service is a specialization of @Component, typically used for service layer classes.