SpringBoot

Spring Boot's opinionated application bootstrap, starters, auto-configuration, embedded servers, external configuration, and observability.

A learning roadmap for Boot configuration, auto-configuration, web/data integration, packaging, observability, and source analysis.

Packaging reusable dependencies plus conditional auto-configuration and typed configuration properties without surprising applications.

Spring cache abstraction usage, cache annotations, cache keys, invalidation, and the limits of local or remote cache providers.

Executable Boot archive layout, launcher/class-loader concept, nested dependencies, and why exact launcher classes are version-specific.

Conditional creation of SqlSessionFactory, mapper integration, transaction participation, and application override points.

How Boot conditionally configures MVC defaults while allowing application customization and full override.

The application entry point, SpringApplication, configuration sources, profiles, lifecycle hooks, and graceful startup/shutdown.

How Spring Boot creates and customizes an embedded servlet container from dependencies, web application type, and server properties.

How Spring Boot conditionally creates cache infrastructure from classpath, properties, beans, and provider availability.

Conceptual SpringApplication startup phases from environment preparation through context refresh, runners, and ready events.

Conditional configuration selection, metadata/imports, bean back-off, configuration properties, and condition diagnostics.