java-springboot

Spring Boot best practices for project structure recommend organizing code by feature into a modular package layout and using starters to simplify dependency management. This ensures maintainable and scalable application architecture.

Dependency injection in Spring Boot should use constructor-based injection with immutable fields. Proper use of @Component, @Service, and related stereotypes is encouraged to align with recognized industry standards for maintainable code.

Externalized configuration in Spring Boot is best managed using type-safe properties with @ConfigurationProperties and profiles. This approach ensures secure handling of secrets and aligns with industry standards for configuration management.

Separating web, service, and data layers in Spring Boot requires clean boundaries, DTO usage, validation, transaction management, and repository patterns. This structure enforces proper separation of concerns across typical application layers.

Spring Boot testing uses SLF4J for logging and relies on JUnit 5 and Mockito for both unit and integration tests. This combination provides comprehensive coverage for typical application components and service layers.

DTOs in Spring Boot web layers should be used consistently to enforce clean separation between API contracts and internal domain models. This practice ensures proper validation and prevents exposing entity structures directly.