django 通道 websocket 在握手期间关闭

Question

我正在尝试使用 channels readthedocs https://channels.readthedocs.io/en/latest/tutorial/index.html

中的教程将一个简单的聊天室集成到我当前的网站项目中

当我尝试加载应该自动连接到全球聊天的网站主页时，我得到了这个

后端控制台

HTTP GET / 200 [0.01, 127.0.0.1:58286]
HTTP GET /static/chatroom/base.css 304 [0.00, 127.0.0.1:58286]
HTTP GET /static/chatroom/images/profiles/anonymous.jpg 304 [0.00, 127.0.0.1:58288]
HTTP GET /static/chatroom/images/background.jpg 304 [0.00, 127.0.0.1:58288]
WebSocket HANDSHAKING /ws/chat/global/ [127.0.0.1:58290]
WebSocket DISCONNECT /ws/chat/global/ [127.0.0.1:58282]

javascript 控制台

Firefox can’t establish a connection to the server at ws://127.0.0.1:8000/ws/chat/global/. 127.0.0.1:8000:59:23
Socket error: [object WebSocket] 127.0.0.1:8000:69:17
Chat socket closed unexpectedly: 1006

我不太确定应该为我的示例提供什么代码，但这是我的消费者代码和我的设置

consumers.py

# chat/consumers.py
import json
from channels.generic.websocket import WebsocketConsumer
from asgiref.sync import async_to_sync


class ChatConsumer(WebsocketConsumer):
    async def connect(self):
        self.room_name = 'global'
        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=None, bytes_data=None):
        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
        }))

settings.py（截断）

# chatroom settings
# https://channels.readthedocs.io/en/latest/tutorial/part_2.html

ASGI_APPLICATION = 'mysite.routing.application'
CHAT_PORT = 7580
CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            "hosts": ['redis://localhost:{}'.format(CHAT_PORT)]
        },
    }
}

我尝试查看其他帖子，但它们似乎都使用过时的版本，我可以得到更新的答案吗？

Answer 1

您使用的是同步 WebSocketConsumer 而您已将代码重写为异步。因此你应该写：

class ChatConsumer(AsyncWebsocketConsumer):

将您的 consumers.py 与 the tutorial 中的进行比较。

django 通道 websocket 在握手期间关闭

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