Spring Component Scanning
Spring Component Scanning is a core feature of the Spring Framework that automatically detects and registers Spring-managed beans (components) in the application context without requiring explicit bean definitions in XML or Java configuration. It works by scanning specified packages for classes annotated with stereotypes like @Component, @Service, @Repository, or @Controller, and instantiating them as beans. This reduces boilerplate configuration and enables convention-over-configuration in Spring applications.
Developers should use Spring Component Scanning when building Spring-based applications to simplify configuration and improve maintainability, especially in large projects with many beans. It is essential for modern Spring Boot applications where auto-configuration relies heavily on scanning to set up the application context automatically. Use cases include web applications with controllers, services, and repositories, or any modular Spring project where manual bean registration would be tedious.