Spring Boot Internals Explained | How Auto-Configuration Really Works
Most developers use Spring Boot daily — but very few truly understand what happens behind the scenes.
In this video, we break down how Spring Boot auto-configuration works internally and how it wires beans automatically without manual configuration.
You’ll learn:
✔ What @SpringBootApplication actually does
✔ How @EnableAutoConfiguration works
✔ spring.factories (Spring Boot 2.x)
✔ AutoConfiguration.imports (Spring Boot 3.x)
✔ Conditional annotations like @ConditionalOnClass
✔ How to create custom auto-configurations
✔ Debugging auto-configuration issues
This video is perfect for intermediate to advanced Java developers who want deeper knowledge of the Spring ecosystem.
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