What is Spring Boot?

• Spring boot is an advance module by spring framework.

• It is used to application development where we need rapid application development.

• That why its also known as Rapid Application Development module in spring framework.So, its very popular in spring framework.

Why spring boot used for ?

• Spring Boot is Advanced Java-based framework, which is an open-source that is used to create a micro Service.

• Spring Boot is developed by Pivotal Team.

• Spring Boot has used for building production-ready stand-alone applications.

Difference between Spring and Spring Boot ? or Why do we use Spring Boot instead of Spring to develop REST web services.

• Spring Boot reduces a lot of configuration and boilerplate code.

• Spring Boot uses third-party libraries with minimum effort.

• Spring Boot is easy to create standalone applications with embedded Tomcat/Jetty/Undertow.

• Spring Boot provides metrics, health checks, and externalized configuration.

Hello World Example of Spring Boot:-

@RestController
@EnableAutoConfiguration

public class Example
{
 @RequestMapping("/")
 
 String home()
 {
  return "Hello World!";
 }

 public static void main(String[] args) throws Exception
 {
  SpringApplication.run(Example.class, args);
 }
}