If you want to become proficient with Spring, my recommendation is to put Spring Boot aside for a moment and focus on learning the Spring Framework fundamentals. After that, not only you& #39;ll appreciate all that Spring Boot does for you, but you& #39;ll know how to customize it. (1/6)

A great starting point is the Spring Framework official documentation: https://docs.spring.io/spring-framework/docs/current/spring-framework-reference/">https://docs.spring.io/spring-fr... Focus on the application context, dependency injection, bean lifecycle, and configuration (annotation-based and java-based), aspect-oriented programming, and bean validation. (2/6)

Next, experiment with the different types of application contexts for web and non-web applications. I found it quite educational to develop something without Spring Boot and then do the same with Spring Boot. Compare the two, and you& #39;ll really understand its power. (3/6)

Spring Boot takes an opinionated view of Spring and third-party libraries to boosts your productivity so that you can focus on the business logic rather than the plumbing. With minimal configuration, you can run production-grade applications. It& #39;s awesome! (4/6)

But it will come the time when you need to customize something. That& #39;s when your Spring core skills will come handy. If you feel like Spring Boot is magic, then have a look at how the Spring Framework works, and you& #39;ll understand. (5/6)

If you& #39;re looking for resources to learn and delve into Spring, I recently started a list on GitHub, where you can find books, courses, tutorials, projects, podcasts, YouTube channels, and more. https://github.com/ThomasVitale/awesome-spring">https://github.com/ThomasVit... (6/6)