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 9ee545d..db5d627 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -53,15 +53,12 @@
         Group testGroup = new Group(gId, uri, name, uId);
         Session session = SessionManager.getInstance().getSession();
         session.save(testGroup);
-        SessionManager.getInstance().closeSession();
-
-        session = SessionManager.getSession().getSession();
-        testGroup.addMember(uId);
-        int n = testGroup.getMembers().size();
-
-        session.update(testGroup);
-
-        SessionManager.getInstance().closeSession();
+//        SessionManager.getInstance().closeSession();
+//        session = SessionManager.getSession().getSession();
+//        testGroup.addMember(uId);
+//        int n = testGroup.getMembers().size();
+//        session.update(testGroup);
+//        SessionManager.getInstance().closeSession();
         return testGroup;
     }
 
@@ -141,6 +138,18 @@
          */
     }
 
+    //とりあえず作成。あとでaddMember()と統合させる。
+    public static void addMemberWhenCreateGroup(Group group, String uId){
+          Session session = SessionManager.getInstance().getSession();
+//          Group editGroup = session.load(Group.class, "gId");//取得できない
+          Group editGroup = group;
+          if(editGroup != null) {
+              editGroup.addMember(uId);
+//            int n = testGroup.getMembers().size();
+              session.update(editGroup);
+          }
+    }
+
     public static HashMap<String, String> getTestHashMap(){
         return testMap;
     }
diff --git a/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java b/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
index 2714d23..31ab036 100644
--- a/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
+++ b/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
@@ -1,5 +1,6 @@
 package com.example.cosmos_serversb.resources;
 
+import com.example.cosmos_serversb.entities.Group;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.hibernate.Session;
@@ -9,6 +10,8 @@
 
 import com.example.cosmos_serversb.models.*;
 
+import java.io.IOException;
+
 @Component
 @Path("/groups")
 public class GroupsRest {
@@ -22,11 +25,19 @@
     }
 
     @POST
-    public String createGroup(@FormParam("name") String name, @FormParam("uId") String uId, @FormParam("token") String token) throws JsonProcessingException{
+    public String createGroup(@FormParam("name") String name, @FormParam("uId") String uId, @FormParam("token") String token) throws IOException {
+        //グループの作成
         SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Groups.getInstance().createGroup(name, uId));
         SessionManager.getInstance().closeSession();
+
+        //グループにメンバーの追加
+        SessionManager.getInstance().getSession();
+        Group group = mapper.readValue(json, Group.class);
+//        Groups.addMemberById(group.getgId(), uId);//どうやってこのgIdを取得する？
+        Groups.addMemberWhenCreateGroup(group, uId);
+        SessionManager.getInstance().closeSession();
         return json;
     }