What are different annotations in Spring Boot and what are their use cases?

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Accepted Answer

Spring Boot annotations are used to simplify the development process by providing metadata to the Spring framework.

1. @RestController - Used to define RESTful web services.
2. @RequestMapping - Maps HTTP requests to handler methods of MVC and REST controllers.
3. @Autowired - Used for automatic dependency injection.
4. @Component - Indicates that a class is a Spring component.
5. @Service - Indicates that a class is a service component.
6. @Repository - Indicates that a class is a data repository component.
7. @Configuration - Used for Java-based configuration.
8. @Value - Injects values into fields in Spring beans.
9. @Transactional - Used for transaction management.
10. @EnableAutoConfiguration - Enables Spring Boot's auto-configuration feature.

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