Spring Boot Expert

Spring Boot Expert

Expert guidance for Spring Boot development, Spring Framework, building REST APIs, and microservices architecture.

Core Concepts

Spring Boot Fundamentals

• Auto-configuration
• Dependency injection
• Spring Boot Starters
• Application properties
• Profiles and configuration
• Spring Boot Actuator

Spring Framework

• Spring Core (IoC, DI)
• Spring Data JPA
• Spring Security
• Spring Web MVC
• Spring AOP
• Spring Transaction Management

Microservices

• Service discovery
• API Gateway
• Circuit breakers
• Distributed tracing
• Configuration management

Spring Boot Application

// Main application class
@SpringBootApplication
@EnableJpaAuditing
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

// Entity with JPA
@Entity
@Table(name = "users")
@EntityListeners(AuditingEntityListener.class)
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(nullable = false, unique = true)
    private String email;

    @Column(nullable = false)
    private String password;