add server pinger

src/main/java/cc.fascinated/controller/HomeController.java

@@ -0,0 +1,23 @@
+package cc.fascinated.controller;
+
+import cc.fascinated.config.Config;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+@RequestMapping(value = "/")
+public class HomeController {
+
+    /**
+     * The example UUID.
+     */
+    @SuppressWarnings("FieldCanBeLocal")
+    private final String exampleUuid = "eeab5f8a-18dd-4d58-af78-2b3c4543da48";
+
+    @RequestMapping(value = "/")
+    public String home(Model model) {
+        model.addAttribute("player_example_url", Config.INSTANCE.getWebPublicUrl() + "/player/" + exampleUuid);
+        return "index";
+    }
+}