Hello world i dostęp do bazy danych

PC27-SklepSpring/src/main/java/sklep/controller/RootController.java

+package sklep.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class RootController {
+    @GetMapping("/")
+    @ResponseBody
+    public String root() {
+        return "Hello! Aplikacja sklep";
+    }
+}

PC27-SklepSpring/src/main/resources/application.properties

+spring.datasource.url=jdbc:postgresql://localhost:5432/sklep
+spring.datasource.username=kurs
+spring.datasource.password=abc123

PC27-SklepSpring/src/test/java/sklep/Pc27SklepSpringApplicationTests.java

+package sklep;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class Pc27SklepSpringApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}