What annotations are used to define and configure beans in the Spring Framework?

In the Spring Framework, the following annotations are most commonly used for defining and configuring beans:

• @Component — a basic annotation for automatic detection and registration of a component as a bean.
• @Service — a specialized annotation for the service layer, semantically indicating that the class contains business logic.
• @Repository — used for the DAO layer, helps handle database-related exceptions.
• @Controller — for components responsible for handling HTTP requests in MVC.
• @Bean — used in methods of configuration classes (@Configuration) for explicit bean definition.
• @Configuration — indicates that the class contains bean definitions via methods annotated with @Bean.

Example of using @Bean and @Configuration:

@Configuration
public class AppConfig {
    @Bean
    public MyService myService() {
        return new MyServiceImpl();
    }
}

Thus, annotations help Spring to automatically or explicitly create and manage the lifecycle of beans.