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 4912efd..f779544 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -4,13 +4,44 @@
 import javax.inject.Singleton;
 
 import com.example.cosmos_serversb.entities.*;
-
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
 
 @Singleton
 public class Groups {
     private static Groups theInstance = null;
     private static ArrayList<Group> groups = new ArrayList<>();
 
+    private static SessionFactory sessionFactory;
+
+    public static void setUp() {
+        // A SessionFactory is set up once for an application!
+        final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
+                .configure() // configures settings from hibernate.cfg.xml
+                .build();
+        try {
+            sessionFactory = new MetadataSources( registry ).buildMetadata().buildSessionFactory();
+        }
+        catch (Exception e) {
+            // The registry would be destroyed by the SessionFactory, but we had trouble building the SessionFactory
+            // so destroy it manually.
+            StandardServiceRegistryBuilder.destroy( registry );
+        }
+    }
+
+    public static void tearDown() {
+        try {
+            if ( sessionFactory != null ) {
+                sessionFactory.close();
+            }
+        } catch (Exception e) {
+            System.out.println("Exception!");
+        }
+    }
+
     private Groups(){
 
     }
@@ -29,18 +60,29 @@
     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);
-        groups.add(testGroup);
+        Session session = sessionFactory.openSession();
+        session.beginTransaction();
+        session.save(testGroup);
+        session.getTransaction().commit();
+        session.close();
         return testGroup;
     }
 
     public static Group getGroupByGid(String gId){
         Group editGroup;
-        for (int i = 0; i < groups.size(); i++) {
-            editGroup = groups.get(i);
+        Session session = sessionFactory.openSession();
+        session.beginTransaction();
+        List groupResult = session.createQuery( "from Group" ).list();
+        for ( Group group : (List<Group>) groupResult ) {
+            editGroup = group;
             if (editGroup.getgId().equals(gId)) {
+                session.getTransaction().commit();
+                session.close();
                 return editGroup;
             }
         }
+        session.getTransaction().commit();
+        session.close();
         return null;
     }
 
@@ -104,7 +146,8 @@
         for (String key : TestMap.keySet()) {
             System.out.println(key + " " + TestMap.get(key));
         }
-        */
+         */
+
         return testMap;
     }
 
diff --git a/src/test/java/hibernateTest/models/Groups.java b/src/test/java/hibernateTest/models/Groups.java
new file mode 100644
index 0000000..3852f0c
--- /dev/null
+++ b/src/test/java/hibernateTest/models/Groups.java
@@ -0,0 +1,169 @@
+package hibernateTest.models;
+
+import hibernateTest.entities.Group;
+import hibernateTest.entities.Request;
+import hibernateTest.entities.Event;
+import com.example.cosmos_serversb.models.DeleteResult;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+
+import javax.inject.Singleton;
+import java.util.HashMap;
+import java.util.List;
+
+
+@Singleton
+public class Groups {
+    private static Groups theInstance = null;
+
+    private static SessionFactory sessionFactory;
+
+    public static void setUp() {
+        // A SessionFactory is set up once for an application!
+        final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
+                .configure() // configures settings from hibernate.cfg.xml
+                .build();
+        try {
+            sessionFactory = new MetadataSources( registry ).buildMetadata().buildSessionFactory();
+        }
+        catch (Exception e) {
+            // The registry would be destroyed by the SessionFactory, but we had trouble building the SessionFactory
+            // so destroy it manually.
+            StandardServiceRegistryBuilder.destroy( registry );
+        }
+    }
+
+    public static void tearDown() {
+        try {
+            if ( sessionFactory != null ) {
+                sessionFactory.close();
+            }
+        } catch (Exception e) {
+            System.out.println("Exception!");
+        }
+    }
+
+    private Groups(){
+
+    }
+
+    public static Groups getInstance(){
+        if(theInstance == null){
+            theInstance = new Groups();
+        }
+        return theInstance;
+    }
+
+    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);
+        Session session = sessionFactory.openSession();
+        session.beginTransaction();
+        session.save(testGroup);
+        session.getTransaction().commit();
+        session.close();
+
+        Session output = sessionFactory.openSession();
+        output.beginTransaction();
+        //hibernateテスト用出力
+        List groupResult = output.createQuery( "from Group" ).list();
+        for ( hibernateTest.entities.Group group : (List<hibernateTest.entities.Group>) groupResult ) {
+            System.out.println( "Group (" + group.getgId() + ") : " + group.getUri() + ": " + group.getName());
+        }
+        output.getTransaction().commit();
+        output.close();
+        return testGroup;
+    }
+
+    public static Group getGroupByGid(String gId){
+        Group editGroup;
+        Session session = sessionFactory.openSession();
+        session.beginTransaction();
+        List groupResult = session.createQuery( "from Group" ).list();
+        for ( hibernateTest.entities.Group group : (List<hibernateTest.entities.Group>) groupResult ) {
+            editGroup = group;
+            if (editGroup.getgId().equals(gId)) {
+                session.getTransaction().commit();
+                session.close();
+                return editGroup;
+            }
+        }
+        session.getTransaction().commit();
+        session.close();
+        return null;
+    }
+
+    public static DeleteResult deleteGroup(String gId){
+        Group editGroup = Groups.getInstance().getGroupByGid(gId);
+        if(editGroup == null){
+            return DeleteResult.FAILURE;
+        }
+        //以下に削除処理を行う。
+        return DeleteResult.SUCCESS;
+    }
+
+    public static HashMap<String, String> getMembersListByGid(String gId){
+        return createTestHashMap();
+    }
+
+    public static HashMap<String, String> addMember(String gId, String uId){
+        return createTestHashMap();
+    }
+
+    public static HashMap<String, String> deleteMember(String gId, String uId){
+        return createTestHashMap();
+    }
+
+    public static HashMap<String, String> getRequestsListByGid(String gId){
+        return createTestHashMap();
+    }
+
+    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",
+                                            uId, product, "1999/01/01/15:00:00", 999);
+        return testRequest;
+    }
+
+    public static Request getRequestDetailByGidAndRid(String gId, String rId){
+        return null;
+    }
+
+    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",
+                                            uId, product, "1999/01/01/15:00:00", 999);
+
+        return testRequest;
+    }
+
+    public static DeleteResult deleteRequest(String gId, String rId){
+        return DeleteResult.SUCCESS;
+    }
+
+    //テスト用にHashMapの作成
+    public static HashMap<String, String> createTestHashMap(){
+        HashMap<String, String> testMap = new HashMap<>();
+        testMap.put("123456780", "http://test0.com");
+        testMap.put("123456781", "http://test1.com");
+        testMap.put("123456782", "http://test2.com");
+        /*
+        //Key, valueの取り出し方例(拡張for文)
+        for (String key : TestMap.keySet()) {
+            System.out.println(key + " " + TestMap.get(key));
+        }
+        */
+        return testMap;
+    }
+
+
+
+}
diff --git a/src/test/java/hibernateTest/models/GroupsMain.java b/src/test/java/hibernateTest/models/GroupsMain.java
new file mode 100644
index 0000000..6e3f5b7
--- /dev/null
+++ b/src/test/java/hibernateTest/models/GroupsMain.java
@@ -0,0 +1,13 @@
+package hibernateTest.models;
+
+import hibernateTest.models.*;
+
+//このメインクラスを実行すると、Hibernateのテストが行えます。
+public class GroupsMain {
+    public static void main(String args[]){
+        Groups.setUp();
+        Groups.createGroup("test1", "1234567890");
+        Groups.getGroupByGid("123456789");
+        Groups.tearDown();
+    }
+}
diff --git a/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java b/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
index 14e4bf6..f392f06 100644
--- a/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
+++ b/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
@@ -48,7 +48,7 @@
  * @author Steve Ebersole
  */
 public class NativeApiIllustrationTest {
-	private SessionFactory sessionFactory;
+    private SessionFactory sessionFactory;
 
 	public void setUp() {
 		// A SessionFactory is set up once for an application!