Spring Boot the Ripper – Part I
summary
Shows how Spring Boot actually wires things: dependency-management BOMs, auto-configuration driven by spring.factories loader, and why a typical app ends up with hundreds of framework beans. Builds an IronBank demo, a custom starter that registers an ApplicationListener (sends a “raven”) via spring.factories, and a custom @ConditionalOnProduction backed by a Condition that prompts with JOptionPane. Finds the condition runs surprisingly three times per bean, reproduces it, and fixes it by caching results (static) to work reliably — conditional caching bug and its practical workaround.
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chapters (15)
- 0:00Introduction and speaker intro
- 2:13Spring core components overview
- 3:17Demo: Iron Bank loan prediction
- 9:44Spring Boot core concepts
- 10:04Why Spring Boot solves common issues
- 11:51Dependency management in Spring Boot
- 16:24Spring context configuration
- 19:33Beans in Spring Boot context
- 20:36Creating a custom Spring Boot starter
- 27:06Enabling starter configurations
- 32:26How Spring Boot loads configurations
- 36:45Conditional mechanisms in Spring Boot
- 39:15Demo: Conditional on production
- 47:07Conditional logic invocation frequency
- 51:37Caching conditional logic results
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