无法通过WebSocket订阅和接收消息

Question

我正在 hbmqtt 代理上发布一些消息，但是即使我能够在浏览器之间创建连接，但我无法接收消息。我在这里做什么错了？

我对MQTT不太熟悉，因此，我应该感谢任何有趣的事情，在此先感谢您。

所有publisher代码都可以找到here

我的浏览器脚本

<script src="https://cdnjs.cloudflare.com/ajax/libs/paho-mqtt/1.0.1/mqttws31.js" type="text/javascript"></script>
    <script type="text/javascript" language="javascript">
        var mqtt;
        var reconnectTimeout = 2000;
        var host = "localhost";
        var port = 9000;

        function onFailure(message) {
            console.log("Connection Attempt to Host " + host + "Failed");
            setTimeout(MQTTconnect, reconnectTimeout);
        }
        function onMessageArrived(msg) {
            out_msg = "Message received " + msg.payloadString + "<br>";
            out_msg = out_msg + "Message received Topic " + msg.destinationName;
            console.log(out_msg);

        }

        function onConnect() {
            mqtt.subscribe("bruv");
            console.log("Connected ");
        }
        function MQTTconnect() {
            console.log("connecting to " + host + " " + port);
            mqtt = new Paho.MQTT.Client(host, port, "");
            var options = {
                timeout: 3,
                onSuccess: onConnect,
                onFailure: onFailure,
            };
            mqtt.onMessageArrived = onMessageArrived

            mqtt.connect(options); //connect
        }

    </script>
    <script>
        MQTTconnect();
    </script>

我的经纪人

mosquito代理具有默认设置

发布消息

import paho.mqtt.client as mqtt
import json
from datetime import datetime
import time

input_file = open('./data/bus1.json')
json_array = json.load(input_file)
coordinates = json_array['features'][0]['geometry']['coordinates']

client = mqtt.Client(transport='websockets')
client.connect('localhost', 8883)

# Generate all coordinates
def generate_coordinates(coordinates):
    # new_coordinates = []
    i = 0
    while i < len(coordinates):
        data = {}
        data['busline'] = 201
        data['plate'] = 'RAB5674'
        data['time_stamp'] = str(datetime.utcnow())
        data['longitude'] = coordinates[i][0]
        data['latitude'] = coordinates[i][1]
        message = json.dumps(data)
        client.publish('busline/201', message)

        # producer.produce(message.encode('ascii'))
        time.sleep(1)

        # If buses reaches last coordinaates
        if i == len(coordinates)-1:
            coordinates = coordinates[::-1]
            i = 0
        else:
            i += 1
    # return new_coordinates


generate_coordinates(coordinates)