diff --git a/src/main/java/com/example/cosmos_serversb/models/Users.java b/src/main/java/com/example/cosmos_serversb/models/Users.java
index a640ab3..b73d929 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Users.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Users.java
@@ -50,11 +50,10 @@
     }
 
     public static User createUser(String name, String pw, String iconImage) {
-        String uId = "1234";
+        String uId = getInstance().createUId();
         String uri = baseURI + AppName +"/users/" +uId;
 
-        Session session = sessionFactory.openSession();
-        session.beginTransaction();
+        Session session = SessionManager.getInstance().getSession();
         createToken(uId);
         User testUser = new User(name, uId, uri, iconImage);//名前、uId、ユーザーuri、パスワード、アイコンイメージを保存
         session.save(testUser);
@@ -64,15 +63,11 @@
           for ( User user : (List<User>) userResult ) {
            System.out.println( "UserId (" + user.getuId() + ") : " + user.getUri() + ": " + user.getName());
        }*/
-        session.getTransaction().commit();
-        session.close();
-
         return testUser;
     }
 
     public static User setUser(String uId, String name, String pw, String iconImage) {
-        Session session = sessionFactory.openSession();
-        session.beginTransaction();
+        Session session = SessionManager.getInstance().getSession();
         List usersList = session.createQuery( "from User" ).list();
         for ( User user : (List<User>) usersList ) {
             if (user.getuId().equals(uId)) {
@@ -85,15 +80,12 @@
             }
         }
         User findUser = (User) session.load(User.class, uId);
-        session.getTransaction().commit();
-        session.close();
         return findUser;
     }
 
     public static User getUserById(String uId) {
         //与えられたuIdのUser情報を返す
-        Session session = sessionFactory.openSession();
-        session.beginTransaction();
+        Session session = SessionManager.getInstance().getSession();
         List usersList = session.createQuery( "from User" ).list();
         //uIdを比較し、一致した場合はNameとiconUriを返す。一致しない場合はbreak
         for ( User user : (List<User>) usersList ) {
@@ -105,8 +97,6 @@
                 break;
             }
         }
-        session.getTransaction().commit();
-        session.close();
         //一致しない場合は返す必要がないのでnull
         return null;
     }
@@ -118,16 +108,12 @@
     }
 
     public static DeleteResult deleteUser(String uId) {
-        Session session = sessionFactory.openSession();
-        session = sessionFactory.openSession();
-        session.beginTransaction();
+        Session session = SessionManager.getInstance().getSession();
         Request deleteRequest = (Request) session.load(Request.class, uId);
         if(deleteRequest != null){
             session.delete(deleteRequest);
             System.out.println("massage: Already Deleted");
         }
-        session.getTransaction().commit();
-        session.close();
         return DeleteResult.SUCCESS;
     }
 
@@ -135,7 +121,6 @@
         if(checkPassword(uId,pw)) {
             Token testtoken = getInstance().createToken(uId);
             //tokenを作成後値を返す
-//            System.out.println("true");
             return testtoken;//testToken
         }else{
             return null;
@@ -143,8 +128,7 @@
     }
 
     public static DeleteResult logout(String uId,String token) {
-        Session session = sessionFactory.openSession();
-        session.beginTransaction();
+        Session session = SessionManager.getInstance().getSession();
         List usersList = session.createQuery( "from logout" ).list();
         for ( User user : (List<User>) usersList ) {
             if (user.getuId().equals(uId)) {
diff --git a/src/main/java/com/example/cosmos_serversb/resources/UsersRest.java b/src/main/java/com/example/cosmos_serversb/resources/UsersRest.java
index b1ab75b..a117ab5 100644
--- a/src/main/java/com/example/cosmos_serversb/resources/UsersRest.java
+++ b/src/main/java/com/example/cosmos_serversb/resources/UsersRest.java
@@ -15,77 +15,68 @@
 public class UsersRest {
 
     static interface RemoveuIdAndUri {
-        @JsonIgnore
-        String getUId();
+        @JsonIgnore String getUId();
         @JsonIgnore String getUri();
     }
 
     @POST
-    public String createUsers(
-            @FormParam("name") String name,
-            @FormParam("pw") String pw,
-            @FormParam("iconImage") String iconImage) throws JsonProcessingException {
+    public String createUsers(@FormParam("name") String name, @FormParam("pw") String pw, @FormParam("iconImage") String iconImage) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().createUser(name, pw, iconImage));
-
+        SessionManager.getInstance().closeSession();
         return json;
     }
     
     @Path("/{uId}")
     @GET
-    public String getUsersInfo(
-            @PathParam("uId") String uId,
-            @QueryParam("token") String token) throws JsonProcessingException {
+    public String getUsersInfo(@PathParam("uId") String uId, @QueryParam("token") String token) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().getUserById(uId));
+        SessionManager.getInstance().closeSession();
 
         return json;
     }
 
     @Path("/{uId}")
     @PUT
-    public String setUsersInfo(
-            @PathParam("uId") String uId,
-            @FormParam("token") String token,
-            @FormParam("name") String name,
-            @FormParam("pw") String pw,
-            @FormParam("iconImage") String iconImage) throws JsonProcessingException {
+    public String setUsersInfo(@PathParam("uId") String uId, @FormParam("token") String token, @FormParam("name") String name, @FormParam("pw") String pw, @FormParam("iconImage") String iconImage) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().setUser(uId, name, pw, iconImage));
+        SessionManager.getInstance().closeSession();
 
         return json;
     }
 
     @Path("/{uId}")
     @DELETE
-    public String deleteUsersInfo(
-            @PathParam("uId") String uId,
-            @FormParam("token") String token) throws JsonProcessingException {
+    public String deleteUsersInfo(@PathParam("uId") String uId, @FormParam("token") String token) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().deleteUser(uId));
-
+        SessionManager.getInstance().closeSession();
         return json;
     }
 
     @Path("/{uId}/login")
     @POST
-    public String login(
-            @PathParam("uId") String uId,
-            @FormParam("pw") String pw) throws JsonProcessingException {
+    public String login(@PathParam("uId") String uId, @FormParam("pw") String pw) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().login(uId,pw));
-
+        SessionManager.getInstance().closeSession();
         return json;
     }
 
     @Path("/{uId}/logout")
     @DELETE
-    public String logout(
-            @PathParam("uId") String uId,
-            @FormParam("token") String token) throws JsonProcessingException {
+    public String logout(@PathParam("uId") String uId, @FormParam("token") String token) throws JsonProcessingException {
+        SessionManager.getInstance().getSession();
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(Users.getInstance().logout(uId,token));
-
+        SessionManager.getInstance().closeSession();
         return json;
     }
 }