使用Django通道的Websocket

Question

我正在尝试使用Django通道与浏览器建立websocket连接。websocket无法与服务器连接：

[2017/01/23 23:51:50] HTTP GET / 200 [0.03, 127.0.0.1:60445]
[2017/01/23 23:51:51] WebSocket HANDSHAKING /chat/ [127.0.0.1:60451]
[2017/01/23 23:51:56] WebSocket DISCONNECT /chat/ [127.0.0.1:60451]

    socket = new WebSocket("ws://" + window.location.host + "/chat/");
    socket.onmessage = function (e) {
        alert(e.data);
    };
    socket.onopen = function () {
        socket.send("hello world");
    };
    // Call onopen directly if socket is already open
    if (socket.readyState == WebSocket.OPEN) socket.onopen();

CHANNEL_LAYERS = {
    "default": {
        "BACKEND": "asgiref.inmemory.ChannelLayer",
        "ROUTING": "django_chat_server.routing.channel_routing",
    }
}

channel_routing = {
    # Wire up websocket channels to our consumers:
    'websocket.connect': ws_add,
    'websocket.receive': ws_message,
    'websocket.disconnect': ws_disconnect,
}

我使用命令Python manage.py runserver运行服务器。

编辑：降级到twisted16.2.0版。无济于事。

Answer 1

您还应该有一个websocket.Connect使用者并接受连接，只有在接受连接之后，协议服务器才会完成websocket握手

channel_routing = {
    "websocket.connect": consumers.ws_connect,
}

消费者。py

def ws_connect(message):
    message.reply_channel.send({
        'accept': True
})

参见http://channels.readthedocs.io/en/latest/releases/1.0.0.html#websocket-accept-reject-flow