我正在关注有关 Django 频道的教程，但遇到无法解决的错误。 在网络控制台中显示：
index(16)：与“ws://127.0.0.1:8000/ws/chat/example1/”的 WebSocket 连接失败：
这里是settings.py:
ASGI_APPLICATION = "core.routing.application"
CHANNEL_LAYERS = {
'default': {
'BACKEND': 'channels.layers.InMemoryChannelLayer',
},
}
routing.py 项目级别的文件：
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import anonymous.routing
application = ProtocolTypeRouter({
'websocket': AuthMiddlewareStack(
URLRouter(
anonymous.routing.websocket_urlpatterns
)
),
})
asgi.py:
import os
from django.core.asgi import get_asgi_application
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'core.settings')
application = get_asgi_application()
应用级别的routing.py：
from django.urls import re_path
from django.conf.urls import url
from . import consumers
websocket_urlpatterns = [
url(r'^ws/chat/(?P<room_name>[^/]+)/$', consumers.ChatRoomConsumer.as_asgi()),
]
消费者.py:
import json
from channels.generic.websocket import AsyncWebsocketConsumer
class ChatRoomConsumer(AsyncWebsocketConsumer):
async def connect(self):
self.room_name = self.scope['url_route']['kwargs']['room_name']
self.room_group_name = 'chat_%s' % self.room_name
await self.channel_layer.group_add(
self.room_group_name,
self.channel_name
)
await self.accept()
async def disconnect(self, close_code):
await self.channel_layer.group_discard(
self.room_group_name,
self.channel_name
)
async def receive(self, text_data):
text_data_json = json.loads(text_data)
message = text_data_json['message']
username = text_data_json['username']
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'chatroom_message',
'message': message,
'username': username,
}
)
async def chatroom_message(self, event):
message = event['message']
username = event['username']
await self.send(text_data=json.dumps({
'message': message,
'username': username,
}))
pass
和 chatroom.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<title>Document</title>
</head>
<body>
<div id="user-hello"></div>
{{room_name|json_script:"room-name"}}
<script>
const roomName = JSON.parse(document.getElementById('room-name').textContent)
console.log(roomName)
const chatSocket = new WebSocket(
'ws://' + window.location.host + '/ws/chat/' + roomName + '/'
)
chatSocket.onmessage = function(e){
const data = JSON.parse(e.data)
console.log(data)
document.querySelector('#user-hello').innerHTML = (data.tester)
}
</script>
</body>
</html>
我希望我发布了你们需要的所有细节。如果您需要更多信息，请告诉我。我在默认的 django 本地服务器上运行这个项目。
我得到了同样的错误。你想出来了吗？如果是，请告诉我。