beginner springboot

About

Placed on the main class of a Spring Boot application.

Details

A convenient shortcut annotation that encapsulates several other annotations.

• @Configuration: indicates the class is a source of bean definitions.

• @EnableAutoConfiguration: automatically configure your Spring application based on the dependencies and other configuration settings

• @ComponentScan: scan and discover other Spring components/beans in the specified package(s). @ComponentScan Testing
  

Example

package helloworld;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class MyApplication {

  public static void main(String... args) {
    SpringApplication.run(MyApplication.class, args);
  }
}

Output

The project should successfully terminate with a log similar to:

com.example.demo.MyApplication         : Started MyApplication in 0.757 seconds

Resources

• Official documentation