How to run Spring Boot quick start code - spring

Question

I am new to Spring and Spring Boot, and I am trying it out. I am having trouble running the code sample from https://projects.spring.io/spring-boot/.
package hello;
import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.stereotype.*;
import org.springframework.web.bind.annotation.*;
#Controller
#EnableAutoConfiguration
public class SampleController {
#RequestMapping("/")
#ResponseBody
String home() {
return "Hello World!";
}
public static void main(String[] args) throws Exception {
SpringApplication.run(SampleController.class, args);
}
}
I issued mvn install and everything appears to be fine. But then I issued java -cp target/myArtifId-1.0-SNAPSHOT.jar hello.SampleController and ClassNotFoundException is thrown.
How do I run this code sample?

Answer 1

As per spring boot documentation, you should be able to run your application with this command:
java -jar target/myArtifId-1.0-SNAPSHOT.jar
Spring Boot produces an executable jar, no need to specify a java class with a main method. That's also the reason why you can not include another class with a main method.

Answer 2

I prefer to use run goal of Spring Boot Maven Plugin to compile and run it in a single command:
mvn spring-boot:run