Getting Started with Spring Boot

Spring Boot makes it easy to create stand-alone, production-grade Spring-based applications.

What is Spring Boot?

Spring Boot is an opinionated framework built on top of the Spring framework that simplifies application setup and development.

Creating Your First Application

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

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "Hello, Spring Boot!";
    }
}

Core Features

• Auto-configuration: Automatically configures your application based on dependencies
• Standalone: Embedded servers (Tomcat, Jetty)
• Production-ready: Health checks, metrics, and monitoring
• Opinionated defaults: Convention over configuration

Key Annotations

• @SpringBootApplication - Main application class
• @RestController - REST endpoint controller
• @Service - Business logic layer
• @Repository - Data access layer

Why Spring Boot?

• Rapid development
• Large ecosystem
• Enterprise-grade features
• Strong community support

Build powerful Java applications with Spring Boot!