channels2.X 学习笔记

- No module named 'asgiref.sync' 报错解决：

# 报错原因：
"""
django版本过低， 卸载最新版本的 channels 使用2.x 版本的
"""
pip3 uninstall channels

 

 

- 安装：

"""
Django 1.11.15 版本不支持最新的 channels
"""pip3 install channels==2.1.4

 

- 在django中的配置：

　　- 配置settings.py文件：

# 添加APP
INSTALLED_APPS = ['django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles','channels',"app01.apps.App01Config",
]# 其他配置文件 ...# ASGI 的路由设置
ASGI_APPLICATION = 'ChannelDemo.routing.application'
CHANNEL_LAYERS = {"default": {"BACKEND": "asgiref.inmemory.ChannelLayer","ROUTING": "ChannelDemo.routing.channel_routing",},
}

 

　　- channels的路由配置：

# 在项目settings文件同级目录中新增routing.py
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import app01.routingapplication = ProtocolTypeRouter({'websocket': AuthMiddlewareStack(URLRouter(app01.routing.websocket_urlpatterns  # 指明路由文件是app01.routing.py
        )),
})

 

　　- app01中的routing.py 文件：

from django.conf.urls import urlfrom . import consumerswebsocket_urlpatterns = [url(r'^ws/deploy/(?P<service_name>[^/]+)/$', consumers.DeployResult),url(r'^ws/$', consumers.ws),
]

 

 　　- 视图文件 consumers.py ：

　　待续。。。