[JAVA] (Intellij) Hello World with Spring Boot
procedure
- In Intel iJ, "File"-> "New"-> "Project"
- Select "Spring Initializer" in the displayed New Project and click "Next".
- Enter "Group" and "Artifact" as appropriate. I want to deploy to the server, so select "War" for "Packaging" and click "Next"
- I want to create a web application, so check "Web" → "Spring Web" and click "Next"
- Enter "Project name" and "Project location" as appropriate, and click "Fisnish".
- Add the following to the automatically created Demo Application and execute.
I was addicted to the lack of @ RestController ...
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
+ import org.springframework.web.bind.annotation.GetMapping;
+ import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
+ @RestController
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
+ @GetMapping("/hello")
+ public String sayHello() {
+ return "Hello World";
+ }
}
- When you access the URL below, "Hello World" should be displayed.
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