开始使用 Django 频道时遇到问题
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【中文标题】开始使用 Django 频道时遇到问题【英文标题】:Trouble getting started with Django Channels 【发布时间】:2018-11-21 08:22:08 【问题描述】:我正在创建自己的应用程序,灵感来自 Channels 2.0 tutorial。但是,我无法建立 WebSocket 连接。 Daphne 抱怨 404 说找不到 websocket URL。我不确定错误在哪里。
更新:我的 Daphne 在 nginx 服务器后面运行。 nginx 配置也更新了:
我的目录结构如下
- SomeDashboardProject
|-- Dashboard
|-- asgi.py
|-- settings.py
|-- urls.py
|-- routing.py
|-- ...
|-- WebSocketTest
|-- consumers.py
|-- routing.py
|-- urls.py
|-- views.py
|-- templates
|-- WebSocketTest
|-- index.html
WebSocketTest/templates/WebSocketTest/Index.html
<script type="text/javascript">
var dashboard_id = '1';
var chatSocket = new WebSocket('ws://' + window.location.host +
'/ws/dboard/' + dashboard_id + '/');
chatSocket.onmessage = function(e)
var data = JSON.parse(e.data);
console.log(data);
;
chatSocket.onclose = function(e)
console.error('Chat socket closed unexpectedly');
;
</script>
WebSocketTest/views.py
def index(request):
return render(request, 'WebSocketTest/index.html', )
WebSocketTest/consumers.py
class TestConsumer(WebsocketConsumer):
def connect(self):
self.accept()
def disconnect(self, close_code):
pass
def receive(self, text_data):
text_data_json = json.loads(text_data)
message = text_data_json['message']
print(message)
WebSocketTest/routing.py
websocket_urlpatterns = [
url(r'^ws/dboard/(?P<dashboard_id>\d+)/$', consumers.TestConsumer),
]
WebSocketTest/urls.py
urlpatterns = [
url(r'^$', views.index, name='index'),
]
仪表板/routing.py
application = ProtocolTypeRouter(
'websocket': AuthMiddlewareStack(
URLRouter(
WebSocketTest.routing.websocket_urlpatterns
)
)
)
仪表板/urls.py
urlpatterns = [
url(r'^test/', include('websockettest.urls'), name='test'),
]
达芙妮错误日志
2018-06-12 02:41:58,857 WARNING Not Found: /ws/dboard/1/
None - - [12/Jun/2018:02:41:58] "GET /ws/dboard/1/" 404 974
Nginx.conf
upstream home
server unix:///Users/pranavprakash/workspace/SomeDashboardProject/nginx.sock;
# configuration of the server
server
# the port your site will be served on
listen 80;
# the domain name it will serve for
server_name localhost; # substitute your machine's IP address or FQDN
charset utf-8;
# max upload size
client_max_body_size 75M; # adjust to taste
# Django media
location /media
alias /Users/pranavprakash/workspace/SomeDashboardProject/media;
location /static
alias /Users/pranavprakash/workspace/SomeDashboardProject/staticfiles;
# Finally, send all non-media requests to the Django server.
location /
uwsgi_pass home;
include /Users/pranavprakash/workspace/SomeDashboardProject/uwsgi_params;
【问题讨论】:
【参考方案1】:经过一番搜索,我发现这是 Nginx 配置的问题。我发布的 nginx 配置不允许 websockets。需要进行以下更改:
location /
uwsgi_pass home;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
include /Users/pranavprakash/workspace/SomeDashboardProject/uwsgi_params;
更多详情请访问Nginx blog post
【讨论】:
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