diff --git a/oauth2_provider/app/views/applications.py b/oauth2_provider/app/views/applications.py
index 15c710df20a1afef2dd0d43530bb61c9bb01dffd..8aeeefa0dd06bd5f604b62d53dba1bee8d8e4db9 100644
--- a/oauth2_provider/app/views/applications.py
+++ b/oauth2_provider/app/views/applications.py
@@ -10,10 +10,10 @@
 # PURPOSE.
 # See the Mulan PSL v2 for more details.
 # ******************************************************************************/
-from flask import request
+from flask import request, g
 from vulcanus.log.log import LOGGER
 from vulcanus.restful.resp import state
-from oauth2_provider.app.views import validate_request
+from oauth2_provider.app.views import validate_request, login_require
 from vulcanus.restful.response import BaseResponse
 from oauth2_provider.app.core.applications import ApplicationProxy
 from vulcanus.restful.resp.state import SUCCEED, PERMESSION_ERROR
@@ -25,9 +25,9 @@ class ApplicationsView(BaseResponse):
     Application management views
     """
 
+    @login_require
     def get(self):
-        username = "123456"
-        status_code, applications = ApplicationProxy().get_all_applications(username)
+        status_code, applications = ApplicationProxy().get_all_applications(g.username)
         ret_data = {
             "number": len(applications),
             "applications": applications
@@ -40,10 +40,10 @@ class ApplicationsRegisteView(BaseResponse):
     Application registration views
     """
 
+    @login_require
     @validate_request(schema=Oauth2ClientSchema)
     def post(self, request_body, **params):
-        username = "123456"
-        request_body['username'] = username
+        request_body['username'] = g.username
         status_code, application = ApplicationProxy().create_application(request_body)
         return self.response(code=status_code, data=application)
 
@@ -54,19 +54,18 @@ class ApplicationsDetailView(BaseResponse):
     """
 
     def get(self, client_id):
-        username = "123456"
         status_code, application = ApplicationProxy().get_one_application(
             client_id=client_id, 
-            username=username
+            username=g.username
         )
         return self.response(code=status_code, data=application)
 
 
+    @login_require
     @validate_request(schema=UpdateOauth2ClientSchema)
     def put(self, client_id, request_body, **params):
-        manage_user = "123456"
         status_code = ApplicationProxy().update_one_application(
-            username=manage_user, 
+            username=g.username, 
             client_id=client_id,
             data=request_body
         )
@@ -75,16 +74,15 @@ class ApplicationsDetailView(BaseResponse):
         else:
             status_code, application = ApplicationProxy().get_one_application(
                 client_id=client_id,
-                username=manage_user
+                username=g.username
             )
             return self.response(code=status_code, data=application)
 
 
     def delete(self, client_id):
-        username="123456"
         status_code = ApplicationProxy().delete_one_application(
             client_id=client_id,
-            username=username
+            username=g.username
         )
         return self.response(code=status_code)