Spring Boot is an open-source Java framework designed to simplify the development of Java applications, particularly microservices and RESTful APIs. It builds on the Spring Framework, offering a streamlined approach to configuration and setup, enabling developers to focus on writing business logic rather than boilerplate code.

Spring Boot eliminates the need for extensive XML configurations by leveraging auto-configuration and starter dependencies. It integrates seamlessly with embedded servers like Tomcat and Jetty, allowing applications to run independently using the java -jar command. This makes it ideal for rapid application development (RAD) and deployment.

Key Features of Spring Boot

• Auto-Configuration: Automatically configures Spring components based on the application's dependencies.

• Starter Dependencies: Predefined dependencies simplify Maven or Gradle configurations.

• Embedded Servers: Eliminates the need for external server setup by bundling servers like Tomcat or Jetty.

• Production-Ready Features: Includes health checks, metrics, and externalized configuration for easier deployment.

• Minimal Boilerplate Code: Reduces repetitive code, enabling faster development.