update,

hk_wine20/spring-vscode-helloworld/demo/src/main/java/com/example/demo/Controllers/HWController.java

@@ -0,0 +1,14 @@
+package com.example.demo.Controllers;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HWController {
+
+  @GetMapping("/api/hw")
+  public String hwMessage(){
+    return "Hello world";
+  }
+
+}

hk_wine20/spring-vscode-helloworld/demo/src/main/java/com/example/demo/DemoApplication.java

@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(DemoApplication.class, args);
+	}
+
+}

hk_wine20/spring-vscode-helloworld/demo/src/main/resources/application.properties

@@ -0,0 +1 @@
+

hk_wine20/spring-vscode-helloworld/demo/src/test/java/com/example/demo/DemoApplicationTests.java

@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}