Why EntityScan , EnableJpaRepositories annotations required if we are already using componentScan annotation?

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I am already using componentScan annotation in main class of spring boot app , but If I use only this annotation it will gives issue while getting repositories reference. So to overcome this I am using EntityScan and EnableJpaRepositories annotations with componentScan.

@EntityScan(basePackages={"com.gonkar.fleetms.models"})
@EnableJpaRepositories(basePackages={"com.gonkar.fleetms.repositories"})

So my question is why its required to use other two annotations? if I am already using componentScan.

spring-boot spring-annotations spring java
1 Answers

The @ComponentScan annotation is used to create beans for classes annotated with @Component, @Controller / @RestController, @Service, @Repository. It marks them for being added to the Spring container (making them eligible for dependency injection and allowing them to be @Autowired).

The @EntityScan annotation doesn't create any beans, it identifies which classes should be used by a JPA persistence context.

The @EnableJpaRepositories annotation is used to create repository classes from Spring Data interfaces.

All three annotation are often used together, but they are responsible for different things.

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