1.安装channels，安装版本高于1.1.8，安装channels会附带安装许多依赖包，其中twisted可能存在兼容问题
pip install channels
2.在settings.py中注册channels
3.在项目目录中添加websocket文件routing.py和asgi.py与settings.py同级
4.asgi.py中的内容为
import os
import channels.asgi
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "canteen.settings") #这里填的是你的配置文件settings.py的位置
channel_layer = channels.asgi.get_channel_layer()
5.routing.py中的内容为
from channels.routing import route,include
from apps.user import views
channel_routing = [ route('websocket.connect',views.connect),
route('websocket.receive',views.recive),
route('websocket.disconnect',views.disconnect),
]
routing = [ include(channel_routing,path=r'^/distribute_task'),]
这里是websocket的路由配置，channel_routing中是websocket的回调试图函数
6.添加channels的配置
CHANNEL_LAYERS = {
"default": {
"BACKEND": "asgiref.inmemory.ChannelLayer",
"ROUTING": "canteen.routing.routing",
},
}
