add new Controller to redirect

src/main/java/mops/gruppen2/controller/Gruppen2Controller.java

@@ -80,7 +80,7 @@ public class Gruppen2Controller {
         Account account = keyCloakService.createAccountFromPrincipal(token);
         controllerService.createGroup(account, title, beschreibung);
 
-        return "redirect:/gruppen2";
+        return "redirect:/gruppen2/";
     }
 
 }

src/main/java/mops/gruppen2/controller/MopsController.java

@@ -0,0 +1,13 @@
+package mops.gruppen2.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class MopsController {
+
+    @GetMapping("")
+    public String redirect(){
+        return "redirect:/gruppen2/";
+    }
+}

src/main/java/mops/gruppen2/service/UserService.java

@@ -19,6 +19,8 @@ public class UserService {
         this.groupService = groupService;
     }
 
+    //Test nötig??
+
     public List<Group> getUserGroups(String user_id) throws EventException {
         List<Long> group_ids = eventRepository.findGroup_idsWhereUser_id(user_id);
         List<Event> events =  groupService.getGroupEvents(group_ids);