Java: Inversion of Control (IoC)

The @Configuration annotation indicates that a class declares one or more @Bean methods.

In Spring Boot, the @Configuration annotation is used to denote classes that define beans using @Bean methods. These classes are processed by the Spring container to instantiate and configure beans. This approach allows for fine-grained control over bean definitions and is useful for integrating third-party libraries. For instance, you might use a @Configuration class to set up a custom DataSource bean for an e-commerce application's database connection.