Spring Boot the Ripper – Part II
summary
Builds a tiny Spring Boot starter that sends a “Raven” only when a property exists: defines a @ConfigurationProperties class (using Lombok), adds spring-boot-configuration-processor to generate additional-spring-configuration-metadata.json for IDE completion, and wires the sender bean with @ConditionalOnProperty so it’s only created when raven.destination is set (demo: Raven not sent until property present, then sent). Adds a composite condition annotation, an ApplicationContextInitializer to fast-fail when no active profile, and an EnvironmentPostProcessor that auto-selects a winter profile by temperature. Packaging details: Spring Boot Maven plugin creates an executable fat jar with a jar launcher and libs.
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chapters (10)
- 0:00Starter project basics
- 2:02Properties and configuration
- 5:57Conditional beans
- 9:12Advanced conditional logic
- 15:46Composite conditions
- 19:28Profiles and beans
- 24:13Fast fail and startup
- 30:26Environment post-processing
- 38:30Lifecycle and events
- 47:29Building and launching
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