diff --git a/docker_env/django/Dockerfile b/docker_env/django/Dockerfile
index d2f0f54..9ca8a18 100644
--- a/docker_env/django/Dockerfile
+++ b/docker_env/django/Dockerfile
@@ -12,6 +12,5 @@ WORKDIR /dvadmin-backend
 COPY ./dvadmin-backend/requirements.txt /
 COPY ./dvadmin-backend/conf/env.example.py /dvadmin-backend/conf/env.py
 RUN python3 -m pip install -i https://mirrors.aliyun.com/pypi/simple/ -r /requirements.txt
-RUN python3 -m pip install -i https://mirrors.aliyun.com/pypi/simple/ uwsgi==2.0.19.1
 CMD ["/dvadmin-backend/docker_start.sh"]
 # ENTRYPOINT [ "uwsgi --ini /backend/azcrm/uwsgi.ini" ]
diff --git a/dvadmin-backend/application/asgi.py b/dvadmin-backend/application/asgi.py
new file mode 100644
index 0000000..e97eafa
--- /dev/null
+++ b/dvadmin-backend/application/asgi.py
@@ -0,0 +1,18 @@
+import os
+
+import django
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'application.settings')
+django.setup()
+from channels.auth import AuthMiddlewareStack
+from channels.http import AsgiHandler
+from channels.routing import ProtocolTypeRouter, URLRouter
+
+websocket_urlpatterns = [
+]
+
+application = ProtocolTypeRouter({
+    "http": AsgiHandler(),
+    # Just HTTP for now. (We can add other protocols later.)
+    'websocket': AuthMiddlewareStack(URLRouter(websocket_urlpatterns, )),
+})
diff --git a/dvadmin-backend/apps/vadmin/utils/login.py b/dvadmin-backend/apps/vadmin/utils/login.py
index 1b8b1bf..36cb50b 100644
--- a/dvadmin-backend/apps/vadmin/utils/login.py
+++ b/dvadmin-backend/apps/vadmin/utils/login.py
@@ -56,10 +56,12 @@ class LoginView(ObtainJSONWebToken):
         try:
             get_captcha = CaptchaStore.objects.get(hashkey=idKeyC)
             if str(get_captcha.response).lower() == idValueC.lower():  # 如果验证码匹配
+                get_captcha.delete()
                 return True
         except:
             pass
         else:
+            if get_captcha: get_captcha.delete()
             raise GenException(message='验证码错误')
 
     def save_login_infor(self, request, msg='', status=True, session_id=''):
diff --git a/dvadmin-backend/docker_start.sh b/dvadmin-backend/docker_start.sh
index 58bc7b4..a1b88c8 100755
--- a/dvadmin-backend/docker_start.sh
+++ b/dvadmin-backend/docker_start.sh
@@ -6,9 +6,10 @@ python ./manage.py makemigrations
 python ./manage.py migrate
 #python ./manage.py initialization
 #python ./manage.py runserver 0.0.0.0:8000
-uwsgi --ini application/uwsgi.ini
+#uwsgi --ini application/uwsgi.ini
 #if [[ $ENV == "preprod" ]] || [[ $ENV == "prod" ]]; then
 #    uwsgi --ini azcrm/uwsgi.ini
 #else
+daphne -b 0.0.0.0 -p 8000 application.asgi:application
 #    python ./manage.py runserver 0.0.0.0:8000
 #fi
diff --git a/dvadmin-backend/requirements.txt b/dvadmin-backend/requirements.txt
index d262086..596bc01 100644
--- a/dvadmin-backend/requirements.txt
+++ b/dvadmin-backend/requirements.txt
@@ -27,4 +27,7 @@ coreapi==2.3.3
 user-agents==2.2.0
 eventlet==0.30.2
 psutil==5.8.0
-drf-yasg ==1.20.0
+drf-yasg==1.20.0
+daphne==3.0.2
+channels==3.0.3
+channels-redis==3.2.0