django通道：未找到路径的路由

Question

我有一个Django Vue。我正在尝试连接到django频道的js聊天应用程序。

要访问任何聊天室，您只需访问：

http://localhost:8080/rooms/"id"/

我的javascript连接如下所示：

connectToWebSocket () {
  const chatSocket = new WebSocket(
    `ws://localhost:8000/ws/rooms/${this.$route.params.id}/`
  )

  chatSocket.onopen = this.onOpen
  chatSocket.onclose = this.onClose
  chatSocket.onmessage = this.onMessage
  chatSocket.onerror = this.onError
},

我的consumers.py：

class ChatConsumer(WebsocketConsumer):
def connect(self):
    self.room_uri = self.scope['url_route']['kwargs']['uri']
    self.room_group_name = 'chat_%s' % self.room_uri

    # Join room group
    async_to_sync(self.channel_layer.group_add)(
        self.room_group_name,
        self.channel_name
    )

    self.accept()

def disconnect(self, close_code):
    # Leave room group
    async_to_sync(self.channel_layer.group_discard)(
        self.room_group_name,
        self.channel_name
    )

# Receive message from WebSocket
def receive(self, text_data):
    text_data_json = json.loads(text_data)
    message = text_data_json['message']
    user = text_data_json['user.username']

    # Send message to room group
    async_to_sync(self.channel_layer.group_send)(
        self.room_group_name,
        {
            'type': 'chat_message',
            'user': user,
            'message': message
        }
    )

# Receive message from room group
def chat_message(self, event):
    user = event['user']
    message = event['message']

    # Send message to WebSocket
    self.send(text_data=json.dumps({
        'user': user,
        'message': message
    }))

我的routing.py：

from django.conf.urls import url

from core import consumers


websocket_urlpatterns = [
    url(r'^ws/rooms/<uri>/', consumers.ChatConsumer),
]

我的项目routing.py：

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter

import core.routing


application = ProtocolTypeRouter({
    'websocket': AuthMiddlewareStack(
        URLRouter(
            core.routing.websocket_urlpatterns
        )
    )
})

问题是，我无法连接到websocket，我的django服务器说：

[失败实例：回溯：：未找到路径“ws/rooms/759b9a8262ea4b7/”的路由。

我的代码中有什么问题，我不能通过网络插座连接到特定的房间？

全栈跟踪：

[失败实例：回溯：：找不到路径“ws/rooms/759b9a8262ea4b7/”的路由/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3.6/site packages/autobahn/websocket/protocol.py:2801:processHandshake/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3.6/site packages/tx.py:429:as\u future/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/扭曲/互联网/延迟。py:151:maybeDeferred/home/dave/pycharm项目/chatapp2/back/venv/lib/python3。6/站点包/daphne/ws_协议。py:82:onConnect----/home/dave/pycharm项目/chatapp2/back/venv/lib/python3。6/站点包/扭曲/互联网/延迟。py:151:maybeDeferred/home/dave/pycharm项目/chatapp2/back/venv/lib/python3。6/站点包/daphne/服务器。py:198:create_应用程序/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/频道/静态文件。py:41:call/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/频道/路由。py:58:call/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/频道/会话。py:43:call/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/频道/会话。py:141:call/home/dave/pycharm项目/chatapp2/back/venv/lib/python3。6/站点包/频道/会话。py:165:init/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/通道/中间件。py:31:call/home/dave/PycharmProjects/chatapp2/back/venv/lib/python3。6/站点包/频道/路由。py:154:打电话

Answer 1

试着这样做：

routing.py（在你的django应用程序内）

from django.urls import path
from core import consumers

websocket_urlpatterns = [
    path('ws/rooms/<uri>/', consumers.ChatConsumer),
]

路由。py（与设置相同的级别。py）

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import myapp.routing

application = ProtocolTypeRouter({
    # (http->django views is added by default)
    'websocket': AuthMiddlewareStack(
        URLRouter(
            myapp.routing.websocket_urlpatterns
        )
    ),
})

最后，在你的设置中。派克

CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            "hosts": [REDIS_URL],
        },
    },
}

INSTALLED_APPS.append('channels')
ASGI_APPLICATION = 'myapp.routing.application'

Answer 2

我遇到了和你一样的问题，刚才正好解决了！在我ws_client.py我写了这个

ws.create_connection("ws://127.0.0.1:8000/alarm")

在路由方面。py我改成下面这个，它起作用了

from django.urls import path
channel_routing = [
    path('alarm',consumers.ws_message),
    # before I wrote 'alarm/', I just change from alarm/ to alarm
]

成功了！你可以试试

Answer 3

您需要使用url，我遇到了同样的问题：

websocket_urlpatterns = [
  path('ws/chat/<str:room_name>/$', consumers.ChatConsumer),
]

websocket_urlpatterns = [
   url(r'^ws/chat/(?P<room_name>[^/]+)/$', consumers.ChatConsumer),
]