Spring Boot Explained: Java Backends Without the Boilerplate
Introduction Java (covered earlier) powers a huge share of enterprise backends, and Spring is its dominant framework — but classic Spring was famous for sprawling XML configuration before a single endpoint existed. Spring Boot, released in 2014, keeps Spring's power and removes the ceremony: opinionated defaults, embedded servers, and a project that runs with one command. If you want a production Java backend quickly, Spring Boot is where most teams start. Starters, auto-configuration, and one runnable jar Spring Boot's magic rests on three ideas: Starters — dependency bundles for a job: spring-boot-starter-web pulls in everything for a REST API (web server, JSON, validation) in one line, instead of dozens of hand-picked libraries. Auto-configuration — Boot inspects your classpath and configures sensible defaults automatically: a web starter on the classpath means an embedded Tomcat server, configured and ready, with no XML. One runnable jar — the app packages as a single execu...