Software Architecture with Spring 5.0

DemoApplication.java

This is a simple class with a main method, which is in charge of running the application. This main class can be executed in this way because of the @SpringBootApplication annotation, which enables all of the required autoconfiguration, as follows:

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