(编辑:jimmy 日期: 2024/11/15 浏览:2)
1.安装依赖包
pip install channels channels-redis
2.settings.py 修改加上支持
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'MyWeb.apps.MywebConfig', "channels", ]
首先需要建立一个django项目。其中在你自己的app下面 生成consumers.py和routing.py配置文件。
consumers.py:相当于django的视图,也就是说所有的websocket路由过来的执行的函数都在consumers.py类似于django的视图views.py
routing.py:是websocket中的url和执行函数的对应关系。相当于django的urls.py,根据映射关系,当websocket的请求进来的时候,根据用户的请求来触发我们的consumers.py里的方法。
3.安装redis
redis 安装配置默认密码 yum install -y redis [root@localhost ~]# vim /etc/redis.conf 开启远程 bind 0.0.0.0 protected-mode no redis-cli -h 192.168.1.20 -p 6379
4.接着配置settings.py 最底部加上这条。
CHANNEL_LAYERS = { 'default': { 'BACKEND': 'channels_redis.core.RedisChannelLayer', 'CONFIG': { "hosts": [('192.168.1.20', 6379)], }, }, } ASGI_APPLICATION = "MyWeb.routing.application"
接着简单的写一下,routing.py 里面
from channels.routing import ProtocolTypeRouter application = ProtocolTypeRouter({ # Empty for now (http->django views is added by default) })
进入django shell 测试是否能连接到数据库
(venv) C:\Users\LyShark\PycharmProjects\MyProject>manage.py shell Python 3.7.4 (tags/v3.7.4:e09359112e, Jul 8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. (InteractiveConsole) > import channels.layers > channel_layer = channels.layers.get_channel_layer() > from asgiref.sync import async_to_sync > async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'}) > async_to_sync(channel_layer.receive)('test_channel') {'type': 'hello'} >
以上就是django使用channels实现通信的示例的详细内容,更多关于channels实现通信的资料请关注其它相关文章!