diff --git a/src/main/java/com/example/cosmos_serversb/models/Groups.java b/src/main/java/com/example/cosmos_serversb/models/Groups.java
index be52147..7be0ecd 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -16,6 +16,8 @@
     private static ArrayList<Group> groups = new ArrayList<>();
 
     private static SessionFactory sessionFactory;
+    private static String baseURI = "http://nitta-lab-www.is.konan-u.ac.jp/";
+    private static String AppName = "cosmos";
 
     public static void setUp() {
         // A SessionFactory is set up once for an application!
@@ -53,13 +55,27 @@
         return theInstance;
     }
 
+    public static String createGId() {
+        //gIdを作成し既存していないかチェック後DBに保存し作成したgIdを返す
+        String gId = UUID.randomUUID().toString();
+        return gId;
+    }
+
+    public static String createRId() {
+        //rIdを作成し既存していないかチェック後DBに保存し作成したrIdを返す
+        String rId = UUID.randomUUID().toString();
+        return rId;
+    }
+
     public static HashMap<String, String> getGroupsListByUid(String uId){
         return createTestHashMap();
     }
 
     public static Group createGroup(String name, String uId){
         //先にGidとuriの発行を行う
-        Group testGroup = new Group("123456789", "http://test.com", name, uId);
+        String gId = getInstance().createGId();
+        String uri = baseURI + AppName + "/groups/" + gId;
+        Group testGroup = new Group(gId, uri, name, uId);
         Session session = sessionFactory.openSession();
         session.beginTransaction();
         session.save(testGroup);
@@ -113,7 +129,9 @@
 
     public static Request addRequests(String gId, String uId, String product, String deadline, int location){
         //テスト用
-        Request testRequest = new Request("123456789", "http://test.com", "1999/01/01/15:00:00",
+        String rId = getInstance().createRId();
+        String uri = baseURI + AppName + "/groups/" + gId + "/requests/" + rId;
+        Request testRequest = new Request(rId, uri, "1999/01/01/15:00:00",
                                             uId, product, "1999/01/01/15:00:00", 999);
         return testRequest;
     }
@@ -125,7 +143,7 @@
     public static Request updateRequest(String gId, String rId, String uId, String product, String deadline, int location, boolean done){
 
         //テスト用
-        Request testRequest = new Request("123456789", "http://test.com", "1999/01/01/15:00:00",
+        Request testRequest = new Request(rId, "http://test.com", "1999/01/01/15:00:00",
                                             uId, product, "1999/01/01/15:00:00", 999);
 
         return testRequest;