Flask socketio连接的客户端

Question

嗨，我需要在我的应用程序上显示已连接客户端的总数，我的代码存在的问题是，即使没有客户端连接，它也会自动增加客户端的数量，当刷新页面时，它会自动增加1。还是有其他方法可以在不使用socketio的情况下获得已连接客户端的总数。

这是我的代码：

from typing import Counter
from flask import Flask, request, render_template_string
from flask_socketio import SocketIO, emit

app = Flask(__name__)
socketio = SocketIO(app, logge=True)
clients = 0

@socketio.on("connect", namespace="/")
def connect():
    # global variable as it needs to be shared
    global clients
    clients += 1
    # emits a message with the user count anytime someone connects
    emit("users", {"user_count": clients}, broadcast=True)

@socketio.on("disconnect", namespace="/")
def disconnect():
    global clients
    clients -= 1
    emit("users", {"user_count": clients}, broadcast=True)


TABLE_TEMPLATE = """
<script
src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.7.3/socket.io.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
    $(document).ready(function(){
        var namespace = '/';    
        var socket = io.connect('http://' + document.domain + ':' + location.port + namespace);
        // Update the counter when a new user connects
        socket.on('users', function(users) {
            userCount = document.getElementById('user_counter');
            userCount.innerHTML = users.user_count;
        });
});
</script>
<h1 id='user_counter'></h1>
<style>
   table, th, td {
   border: 1px solid black;
   }
</style>
<table style="width: 100%">
   <thead>
      <th>Client</th>
      <th>IP</th>
      <th>Status</th>
   </thead>
   <tbody>
      {% for row in data %}
      <tr>
         <td><center>{{ row.client }}</td></center>
         <td><center>{{ row.ip }}</td></center>
         <td><center>{{ row.status }}</td></center>
      </tr>
      {% endfor %}
   </tbody>
</table>
"""


@app.route("/device_add", methods=['POST'])
def device_add():

    name = request.args.get('name')
    with open('logs.log', 'a') as f:
        f.write(f'{name} Connected USB from IP: {request.remote_addr} \n')
    return 'ok'


@app.route("/device_remove", methods=['POST'])
def device_remove():

    name = request.args.get('name')
    with open('logs.log', 'a') as f:
        f.write(f'{name} Disconnected USB from IP: {request.remote_addr}\n')

    return 'ok'


@app.route("/", methods=['GET'])
def device_list():
    keys = ['client', 'ip', 'status']
    data = []
    with open('logs.log', 'r') as f:
        for line in f:
            row = line.split()
            data.append(dict(zip(keys, [row[0], row[-1], row[1]])))


    return render_template_string(TABLE_TEMPLATE, data=data)


if __name__ == "__main__":
  socketio.run(app , threaded=True)