我正在努力理解Django的频道包,并希望尝试在同一页面上可以做的不同事情上有更多的灵活性。我一直在努力弄清楚为什么我的webSocketBridge不起作用,因为看起来应该看看其他例子。
以下是应用路由:
channel_routing = [
route('websocket.connect', ws_connect),
route('websocket.disconnect', ws_disconnect),
route('websocket.receive', ws_receive),
]
custom_routing = [
route("chat.receive", receive_chat_message, command="^send$"),
]
settings.py读取的主要路由:
channel_routing = [
include("ChatApp.routing.channel_routing", path=r"^/chat/stream/$"),
include("ChatApp.routing.custom_routing"),
]
消费者,而不是甚至被称为消费者:
@channel_session_user
def receive_chat_message(message):
log.debug("ws recieved a message")
try:
data = json.loads(message['text'])
except ValueError:
log.debug("ws message isn't json text")
return
if 'message' not in data:
log.debug("ws message unexpected format data=%s", data)
return
if data:
room = Room.objects.first()
log.debug('chat message handle=%s message=%s', message.user, data['message'])
reply = Message.objects.create(
room=room,
handle=message.user.username,
message=data['message'],
)
Group('users').send({
'text': json.dumps({
'reply': reply.message,
'handle': reply.handle,
'timestamp': reply.formatted_timestamp
})
})
然后有当前的JS与所有这一切联系在一起:
$(function () {
// Correctly decide between ws:// and wss://
let ws_path = "/chat/stream/";
console.log("Connecting to " + ws_path);
let webSocketBridge = new channels.WebSocketBridge();
webSocketBridge.connect(ws_path);
webSocketBridge.listen(function(data) {
if (data.username) {
const username = encodeURI(data['username']);
const user = $('li').filter(function () {
return $(this).data('username') === username;
});
if (data['is_logged_in']) {
user.html(username + ': Online');
}
else {
user.html(username + ': Offline');
}
}
});
$("#chatform").on("submit", function(event) {
event.preventDefault();
const $message = $('#message');
const message = {
'command': 'send',
'message': $message.val()
};
console.log(message);
webSocketBridge.send(JSON.stringify(message));
$message.val('').focus();
return false;
});
// Helpful debugging
webSocketBridge.socket.onopen = function () {
console.log("Connected to chat socket");
};
webSocketBridge.socket.onclose = function () {
console.log("Disconnected from chat socket");
}
});
webSockedBridge.listen()
内的所有内容似乎都在做它应该做的事情,调用ws_connect
和ws_disconnect
。但是#chatform
使用命令thingy提交的部分似乎对我不起作用。
现在它只是调用route('websocket.receive', ws_receive)
而不是自定义路由。让它使用命令缺少什么?
答案 0 :(得分:0)
您的路由存在问题:
include("ChatApp.routing.channel_routing", path=r"^/chat/stream/$")
最后删除$。
这是我的项目结构:
Project/
project/
...
routing.py
settings.py
app/
...
routing.py
在settings.py中
CHANNEL_LAYERS = {
'default': {
'BACKEND' : 'asgi_redis.RedisChannelLayer',
'CONFIG': {
'hosts': [('localhost', 6379)],
},
'ROUTING': 'project.routing.channel_routing'
}
}
项目/项目/ routing.py
from channels import include
channel_routing = [
include('app.routing.channel_routing', path=r'^/chat/stream/'),
include('app.routing.custom_routing'),
]
项目/应用程序/ routing.py
from channels import route
from .consumers import ( ws_connect,
ws_receive,
ws_disconnect,
receive_chat_message,
another_command_chat_message,
)
channel_routing = [
route('websocket.connect', ws_connect),
route('websocket.receive', ws_receive),
route('websocket.disconnect', ws_disconnect),
]
custom_routing = [
route('chat.receive', receive_chat_message, command="^send$"),
route('chat.receive', another_command_chat_message, command="^cmd$"),
]
consumers.py
from channels import Channel
import json
def ws_receive(message):
print('Message received')
message.reply_channel.send({'text':message.content['text']})
print('Message.content:', message.content)
print(type(message.content))
print('Message[text]:', message['text'])
print(type(message['text']))
payload = json.loads(message['text'])
payload['reply_channel'] = message.content['reply_channel']
# receive the message and send to chat.receive channel
# with command as a filter
Channel('chat.receive').send(payload)
def ws_connect(message):
print('Connection estabslihed')
print(message.content)
message.reply_channel.send({'accept': True})
def ws_disconnect(message):
print('Disconnecting')
def receive_chat_message(message):
print('chat receive message with `send` command')
print(message)
print(message.content)
def another_command_chat_message(message):
print('chat another command with `cmd` ')
print(message)
print(message.content)