Django使用WebSocket

django channels 是django支持websocket的一个模块。

1安装.

pip3 install channels

 2.在settings中添加配置

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'channels',
]

ASGI_APPLICATION = "django_channels_demo.routing.application"

3. 创建websocket应用和路由

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from channels.routing import ProtocolTypeRouter, URLRouter
from django.conf.urls import url
from chat import consumers


application = ProtocolTypeRouter({
    'websocket': URLRouter([
        url(r'^chat/$', consumers.ChatConsumer),
    ])
})

4.编写处理websocket逻辑业务

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from channels.generic.websocket import WebsocketConsumer
from channels.exceptions import StopConsumer

class ChatConsumer(WebsocketConsumer):

    def websocket_connect(self, message):
        self.accept()

    def websocket_receive(self, message):
        print('接收到消息', message)
        self.send(text_data='收到了')

    def websocket_disconnect(self, message):
        print('客户端断开连接了')
        raise StopConsumer()

5.启动：

daphne -b 0.0.0.0 -p xxxx xxxx.asgi:application