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Difference between @Component, @Service, @Controller, and @Repository annotations in Spring MVC?

Deepika Sahu answered on December 24, 2022 Popularity 5/10 Helpfulness 1/10

answer Difference between @Component, @Service, @Controller, and @Repository annotations in Spring MVC?

Difference between @Component, @Service, @Controller, and @Repository annotations in Spring MVC?

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@Service Annotation

@Repository Annotation

@Controller Annotation

@Service annotation is used with classes that provide some business functionalities.	@Repository Annotation is used to indicate that the class provides the mechanism for storage, retrieval, update, delete and search operation on objects.	@Controller annotation indicates that a particular class serves the role of a controller. 
@Service Annotation is a specialization of @Component Annotation.	@Repository Annotation is also a specialization of @Component Annotation.	@Controller annotation is also a specialization of @Component annotation. 
It is used to mark the class as a service provider.	It is used to mark the interface as DAO (Data Access Object) provider.	It’s used to mark a class as a web request handler.
It is a stereotype for the service layer.	It is also a stereotype for the DAO layer.	It is also a stereotype for the presentation layer (spring-MVC).
Switch can be possible. But it is not recommended. 	Switch can be possible. But it is not recommended. 	We cannot switch this annotation with any other like @Service or @Repository. 
It is a Stereotype Annotation.	It is also a Stereotype Annotation.	It is also a Stereotype Annotation.

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Contributed on Dec 24 2022

Deepika Sahu

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Difference between @Component, @Service, @Controller, and @Repository annotations in Spring MVC?

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