Introduction to Spring Boot

Spring Boot is a powerful framework that simplifies the development of Java applications. In this tutorial, you'll learn how to create your first Spring Boot project and get it up and running quickly.


Prerequisites

Before you begin, ensure that you have the following prerequisites:


Create a Spring Boot Project

Let's start by creating a new Spring Boot project:

  1. Open your IDE and select "File" > "New" > "Project..."
  2. Choose "Spring Initializr" or "Spring Boot" as the project type.
  3. Configure your project settings, such as the project name and package.
  4. Click "Finish" to create the project.

Write Your First Spring Boot Application

Now that you have your project set up, let's write a simple Spring Boot application:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MyFirstSpringBootApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyFirstSpringBootApplication.class, args);
    }
}

This is a basic Spring Boot application with a main class annotated as @SpringBootApplication. It's enough to start a Spring Boot application.


Run Your Application

To run your Spring Boot application:

  1. Right-click your main class and select "Run" or "Debug."
  2. Your application will start, and you'll see output in the console.
  3. Open a web browser and go to http://localhost:8080 to see your running Spring Boot application.

Conclusion

Congratulations! You've created and run your first Spring Boot project. Spring Boot makes it easy to get started with Java development and simplifies many of the complexities.