找到默认的 ROUTING 键 - 通道 2 中不再需要此键

Question

我想集成 Django Channels。我已经安装了所有必需的依赖项，并且在启动应用服务器时开始侦听 TCP 地址 127.0.0.1:8000。我的路由指定如下：

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

和消费者文件：

from channels.generic.websocket import AsyncWebsocketConsumer
import json

class ChannelConsumer(AsyncWebsocketConsumer):
    async def connect(self):
        # self.room_name = self.scope['url_route']['kwargs']['room_name']
        # self.room_group_name = 'chat_%s' % self.room_name
        # 
        # # Join room group
        # await self.channel_layer.group_add(
        #     self.room_group_name,
        #     self.channel_name
        # )

        await self.accept()

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

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

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

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

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

但是我无法打开连接。握手失败

Answer 1

删除路由上CHANNEL_LAYERS设置

并将BACKEND更改为channels_redis.core.RedisChannelLayer

例子：

CHANNEL_LAYERS = {
    "default": {
        "CONFIG": {
            "hosts": [('localhost','6379')],
        },
        "BACKEND": "channels_redis.core.RedisChannelLayer",
    },
}

仅当您将频道 1.X 升级到 2 时才会发生这种情况