Spring Boot for PHP Developers: Parallels to Symfony and Your First REST API

Spring Boot and Symfony share the same core concepts: dependency injection, annotation-based routing, an ORM with repository pattern, and convention-over-configuration. For Symfony developers, Spring Boot is far less foreign than it appears.

Key parallels: @Service/@Component maps to Symfony autowiring, @RestController with @GetMapping maps to #[Route] on controllers, JPA entities map to Doctrine entities, and JpaRepository methods auto-generated from names maps to Doctrine's QueryBuilder.

The main differences are static typing (which actually helps catch bugs at compile time), build tooling (Maven/Gradle vs Composer), and deployment (a self-contained JAR vs PHP files + web server configuration).

For PHP developers curious about Java, Spring Boot is the most productive entry point — the conceptual overhead is minimal when coming from Symfony.