@Configuration

@Configuration is a Java annotation that is used to identify a class as a configuration class. A configuration class is used to define the various components and dependencies required by a Spring application. These components can be Java classes, beans, or other Spring components.

The @Configuration annotation is used in conjunction with other annotations such as @Bean, @ComponentScan, @Import, and @Profile, to create a complete Spring configuration.

The @Bean annotation is used to define a bean or component that can be injected into other Spring components. The @ComponentScan annotation is used to scan for Spring components in a specified package or classpath. The @Import annotation is used to import other configuration classes into the current configuration class. The @Profile annotation is used to define a set of configurations that are activated based on the current environment or application context.

Overall, the @Configuration annotation is an important part of the Spring framework and is used extensively to create and manage Spring applications.