How does auto-configuration work in Spring Boot?

Demystifying the Magic: Understanding the Inner Workings of Spring Boot’s Auto-Configuration Feature

Hello folks, Auto-configuration is one of the most important feature of Spring Boot that simplifies the configuration process for Spring applications by automatically providing default configuration settings based on the classpath and the presence of specific dependencies. It allows developers to quickly set up a Spring application with sensible default configurations without having to manually configure each component.

It’s also one of the popular Spring Boot Questions and at the same time many Java developer struggle to answer this question as they are not able to explain how this feature work? How Spring Boot configure things for you?

I have been answering popular Spring questions in my earlier article like RequestParam vs PathVariable annotations, difference between @Contorller and @RestController annotation, @Bean vs @Component annotation, and @Controller vs @Service @Repository, if you haven’t read them yet, you should read them before your interview, and in this article, I will explain how Auto-configuration works in Spring Boot.

By the way, if you are new to Spring Framework and want to learn Spring in depth and…