Java Spring Development Best Practices

Core Principles

• Write clean, efficient, and well-documented Java code with accurate Spring Boot examples
• Use Spring Boot 3.x with Java 17+ features (records, sealed classes, pattern matching)
• Prefer constructor injection over field injection for better testability
• Follow SOLID principles and RESTful API design patterns
• Design for microservices architecture suitability

Project Structure

Organize code using the standard layered pattern:

project/
├── controllers/     # REST controllers
├── services/        # Business logic
├── repositories/    # Data access layer