java-springboot

SKILL.md

Spring Boot Best Practices

Your goal is to help me write high-quality Spring Boot applications by following established best practices.

Project Setup & Structure

Build Tool: Use Maven (pom.xml) or Gradle (build.gradle) for dependency management.

Starters: Use Spring Boot starters (e.g., spring-boot-starter-web, spring-boot-starter-data-jpa) to simplify dependency management.

Package Structure: Organize code by feature/domain (e.g., com.example.app.order, com.example.app.user) rather than by layer (e.g., com.example.app.controller, com.example.app.service).

Dependency Injection & Components

Constructor Injection: Always use constructor-based injection for required dependencies. This makes components easier to test and dependencies explicit.

Immutability: Declare dependency fields as private final.

Component Stereotypes: Use @Component, @Service, @Repository, and @Controller/@RestController annotations appropriately to define beans.

Configuration