java-springboot
Get best practices for developing applications with Spring Boot.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/github/awesome-copilot --skill java-springboot- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads java-springboot automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
Security audits
Independent scans of the skill's instructions and bundled files.
SKILL.md
The instructions your agent reads when the skill is triggered.
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/@RestControllerannotations appropriately to define beans.
Configuration
- Externalized Configuration: Use
application.yml(orapplication.properties) for configuration. YAML is often preferred for its readability and hierarchical structure. - Type-Safe Properties: Use
@ConfigurationPropertiesto bind configuration to strongly-typed Java objects. - Profiles: Use Spring Profiles (
application-dev.yml,application-prod.yml) to manage environment-specific configurations. - Secrets Management: Do not hardcode secrets. Use environment variables, or a dedicated secret management tool like HashiCorp Vault or AWS Secrets Manager.
Web Layer (Controllers)
- RESTful APIs: Design clear and consistent RESTful endpoints.
- DTOs (Data Transfer Objects): Use DTOs to expose and consume data in the API layer. Do not expose JPA entities directly to the client.
- Validation: Use Java Bean Validation (JSR 380) with annotations (
@Valid,@NotNull,@Size) on DTOs to validate request payloads. - Error Handling: Implement a global exception handler using
@ControllerAdviceand@ExceptionHandlerto provide consistent error responses.
Service Layer
- Business Logic: Encapsulate all business logic within
@Serviceclasses. - Statelessness: Services should be stateless.
- Transaction Management: Use
@Transactionalon service methods to manage database transactions declaratively. Apply it at the most granular level necessary.
Data Layer (Repositories)
- Spring Data JPA: Use Spring Data JPA repositories by extending
JpaRepositoryorCrudRepositoryfor standard database operations. - Custom Queries: For complex queries, use
@Queryor the JPA Criteria API. - Projections: Use DTO projections to fetch only the necessary data from the database.
Logging
- SLF4J: Use the SLF4J API for logging.
- Logger Declaration:
private static final Logger logger = LoggerFactory.getLogger(MyClass.class); - Parameterized Logging: Use parameterized messages (
logger.info("Processing user {}...", userId);) instead of string concatenation to improve performance.
Testing
- Unit Tests: Write unit tests for services and components using JUnit 5 and a mocking framework like Mockito.
- Integration Tests: Use
@SpringBootTestfor integration tests that load the Spring application context. - Test Slices: Use test slice annotations like
@WebMvcTest(for controllers) or@DataJpaTest(for repositories) to test specific parts of the application in isolation. - Testcontainers: Consider using Testcontainers for reliable integration tests with real databases, message brokers, etc.
Security
- Spring Security: Use Spring Security for authentication and authorization.
- Password Encoding: Always encode passwords using a strong hashing algorithm like BCrypt.
- Input Sanitization: Prevent SQL injection by using Spring Data JPA or parameterized queries. Prevent Cross-Site Scripting (XSS) by properly encoding output.
FAQ
What does the java-springboot skill do?
Get best practices for developing applications with Spring Boot.
How do I install java-springboot?
Run npx skills add https://github.com/github/awesome-copilot --skill java-springboot in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/java-springboot/ (personal) or .claude/skills/java-springboot/ (project).
Which AI agents can use java-springboot?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is java-springboot safe to install?
Security partners have reviewed it: Gen Agent Trust Hub passed; Socket passed; Snyk passed; Runlayer flagged items to review; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.
Who maintains java-springboot?
It is published by github in github/awesome-copilot, and it is an official skill from the maker of the technology it covers. It has 21,355 recorded installs.
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