堆栈内存溢出
  简体   繁体   English

socketio：客户端没有收到消息

[英]socketio: client is not receiving message

 原文  2019-11-20 20:25:45  8   1    javascript/ flask/ flask-socketio

问题描述

I am testing socketio to build a small chat application with several channels.我正在测试 socketio 以构建一个具有多个频道的小型聊天应用程序。 I have managed to send data from the client to the server.我设法将数据从客户端发送到服务器。 And the server is sending back that the channel is created.并且服务器正在发回该通道已创建。 However my client does not receive the message.但是我的客户没有收到消息。 Any idea?任何想法？

Client side code: everything is working well except the two events "channel_already_exists" and "channel_created".客户端代码：除了“channel_already_exists”和“channel_created”这两个事件之外，一切都运行良好。 The server is sending these events but the client does not seem to receive them as nothing appears in my console.服务器正在发送这些事件，但客户端似乎没有收到它们，因为我的控制台中没有出现任何内容。

document.addEventListener('DOMContentLoaded', () => {

  // Connect to websocket
  var socket = io.connect(location.protocol + '//' + document.domain + ':' + location.port);

  // When connected, the user can register his username
  socket.on('connect', () => {

    document.getElementById('new_channel').hidden = true;

    if (localStorage.username) {
      socket.emit('register', {'username': localStorage.username});
    } else {
        document.getElementById('registration').onsubmit = () => {
          const username = document.getElementById('username').value;
          localStorage.setItem('username', username);
          socket.emit('register', {'username': username});
        };
    }
  });

  socket.on('registered', () => {
    const username = localStorage.username;
    document.getElementById('registration').innerHTML = '';
    document.getElementById('new_channel').hidden = false;
    document.getElementById('welcome').innerHTML = `Welcome ${username}`;
  });

  document.getElementById('new_channel').onsubmit = () => {
    const channel_name = document.getElementById('channel_id').value;
    socket.emit('new_channel', {'channel_name': channel_name});
  };

  socket.on('channel_already_exists', () => {
    console.log('already exists');
    document.getElementById('channel_message').innerHTML = 'Channel already exists. Please select another name.';
  });

  socket.on('channel_created', channels => {
    console.log('channel created');
    document.getElementById('channel_message').innerHTML = 'Channel has been created.';
  });

});

server code on FLask: FLask 上的服务器代码：

import os
import requests

from flask import Flask, jsonify, render_template, request
from flask_socketio import SocketIO, emit

app = Flask(__name__)
app.config["SECRET_KEY"] = os.getenv("SECRET_KEY")
socketio = SocketIO(app)

users = set()
channels = {}

@app.route("/")
def index():
    not_registered = True
    return render_template("index.html")

#Register new user
@socketio.on("register")
def on_register(data):
    print("register")
    username = data["username"]
    users.add(username)
    emit("registered")

@socketio.on("new_channel")
def on_new_channel(data):
    print("new_channel")
    channel_name = data["channel_name"]
    if channel_name in channels:
        print("channel_already_exists")
        emit("channel_already_exists")
    else:
        #create a new empty channel
        print("new_channel_created")
        channels[channel_name] = ""
        emit('channel_created', channels)

Client log when I try to create a new channel (ie when a submit "new_channel")我尝试创建新频道时的客户端日志（即提交“new_channel”时）

engine.io-client:socket socket error {"type":"TransportError"} +5s
socket.io.min.js (2,5342)

socket.io-client:manager error +5s Error: xhr poll error

engine.io-client:socket socket close with reason: "transport error" +1ms
socket.io.min.js (2,5342)

engine.io-client:polling transport open - closing +1ms
socket.io.min.js (2,5342)

engine.io-client:polling writing close packet +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762262046-2&sid=6108efcd5e754d6c9befdcf33af618ed +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 1:1 +1ms
socket.io.min.js (2,5342)

socket.io-client:manager close +3ms
socket.io.min.js (1,13697)

socket.io-client:socket close (transport error) +5s
socket.io.min.js (1,13697)

socket.io-client:manager will wait 770ms before reconnect attempt +1ms
socket.io.min.js (1,13697)

socket.io-client:manager attempting reconnect +789ms
socket.io.min.js (1,13697)

socket.io-client:manager readyState closed +0ms
socket.io.min.js (1,13697)

socket.io-client:manager opening http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

engine.io-client:socket creating transport "polling" +791ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762262840-3 +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

engine.io-client:socket setting transport polling +0ms
socket.io.min.js (2,5342)

socket.io-client:manager connect attempt will timeout after 20000 +2ms
socket.io.min.js (1,13697)

engine.io-client:socket socket error {"type":"TransportError"} +1s
socket.io.min.js (2,5342)

socket.io-client:manager connect_error +1s
socket.io.min.js (1,13697)

socket.io-client:manager reconnect attempt error +0ms
socket.io.min.js (1,13697)

socket.io-client:manager will wait 1902ms before reconnect attempt +1ms
socket.io.min.js (1,13697)

engine.io-client:socket socket close with reason: "transport error" +1ms
socket.io.min.js (2,5342)

engine.io-client:polling transport not open - deferring close +1ms
socket.io.min.js (2,5342)

socket.io-client:manager attempting reconnect +1s
socket.io.min.js (1,13697)

socket.io-client:manager readyState closed +0ms
socket.io.min.js (1,13697)

socket.io-client:manager opening http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

engine.io-client:socket creating transport "polling" +2s
socket.io.min.js (2,5342)

engine.io-client:polling polling +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762265792-4 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +1ms

engine.io-client:socket setting transport polling +0ms
socket.io.min.js (2,5342)

socket.io-client:manager connect attempt will timeout after 20000 +3ms
socket.io.min.js (1,13697)

engine.io-client:polling polling got data [object ArrayBuffer] +13ms

engine.io-client:socket socket receive: type "open", data "{"sid":"ca6c4332a9f347eab56882912b70a309","upgrades":[],"pingTimeout":60000,"pingInterval":25000}" +1ms
socket.io.min.js (2,5342)

engine.io-client:socket socket open +1ms
socket.io.min.js (2,5342)

socket.io-client:manager open +15ms
socket.io.min.js (1,13697)

socket.io-client:socket transport is open - connecting +3s
socket.io.min.js (1,13697)

socket.io-client:manager reconnect success +1ms
socket.io.min.js (1,13697)

engine.io-client:socket starting upgrade probes +1ms
socket.io.min.js (2,5342)

engine.io-client:socket socket receive: type "message", data "0" +0ms
socket.io.min.js (2,5342)

socket.io-parser decoded 0 as %j +8s [object Object]

connect
index.js (11,5)

engine.io-client:polling polling +2ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762265812-5&sid=ca6c4332a9f347eab56882912b70a309 +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

socket.io-client:manager writing packet %j +5s [object Object]

socket.io-parser encoding packet %j +5s [object Object]

socket.io-parser encoded %j as [object Object] +0ms 2["register",{"username":"goeland"}]

engine.io-client:socket flushing 1 packets in socket +5s
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762271133-6&sid=ca6c4332a9f347eab56882912b70a309 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 37:42["register",{"username":"goeland"}] +0ms
socket.io.min.js (2,5342)

HTML1300: Une navigation s’est produite.
127.0.0.1:5000 (1,1)

socket.io-client:url parse http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

socket.io-client new io instance for http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

socket.io-client:manager readyState closed +0ms
socket.io.min.js (1,13697)

socket.io-client:manager opening http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

engine.io-client:socket creating transport "polling" +0ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +2ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762271323-0 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

engine.io-client:socket setting transport polling +1ms
socket.io.min.js (2,5342)

socket.io-client:manager connect attempt will timeout after 20000 +4ms
socket.io.min.js (1,13697)

socket.io-client:manager readyState opening +0ms
socket.io.min.js (1,13697)

engine.io-client:polling polling got data [object ArrayBuffer] +46ms

engine.io-client:socket socket receive: type "open", data "{"sid":"ccc77d7deda843fa8a846527cb19e4db","upgrades":[],"pingTimeout":60000,"pingInterval":25000}" +3ms
socket.io.min.js (2,5342)

engine.io-client:socket socket open +1ms
socket.io.min.js (2,5342)

socket.io-client:manager open +50ms
socket.io.min.js (1,13697)

socket.io-client:socket transport is open - connecting +0ms
socket.io.min.js (1,13697)

engine.io-client:socket starting upgrade probes +0ms
socket.io.min.js (2,5342)

engine.io-client:socket socket receive: type "message", data "0" +1ms
socket.io.min.js (2,5342)

socket.io-parser decoded 0 as %j +0ms [object Object]

connect
index.js (11,5)

socket.io-client:manager writing packet %j +3ms [object Object]

socket.io-parser encoding packet %j +1ms [object Object]

socket.io-parser encoded %j as [object Object] +0ms 2["register",{"username":"goeland"}]

engine.io-client:socket flushing 1 packets in socket +2ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762271378-1&sid=ccc77d7deda843fa8a846527cb19e4db +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 37:42["register",{"username":"goeland"}] +1ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762271379-2&sid=ccc77d7deda843fa8a846527cb19e4db +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

engine.io-client:polling polling got data [object ArrayBuffer] +36ms

engine.io-client:socket socket receive: type "message", data "2["registered",null]" +2ms
socket.io.min.js (2,5342)

socket.io-parser decoded 2["registered",null] as %j +41ms [object Object]

socket.io-client:socket emitting event %j +44ms registered,

registered
index.js (26,5)

engine.io-client:polling polling +3ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762271422-3&sid=ccc77d7deda843fa8a846527cb19e4db +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +1ms

new_channel
index.js (34,5)

socket.io-client:manager writing packet %j +5s [object Object]

socket.io-parser encoding packet %j +5s [object Object]

socket.io-parser encoded %j as [object Object] +0ms 2["new_channel",{"channel_name":"channel 3"}]

engine.io-client:socket flushing 1 packets in socket +5s
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762276888-4&sid=ccc77d7deda843fa8a846527cb19e4db +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 46:42["new_channel",{"channel_name":"channel 3"}] +1ms
socket.io.min.js (2,5342)

HTML1300: Une navigation s’est produite.
127.0.0.1:5000 (1,1)

socket.io-client:url parse http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

socket.io-client new io instance for http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

socket.io-client:manager readyState closed +0ms
socket.io.min.js (1,13697)

socket.io-client:manager opening http://127.0.0.1:5000 +0ms
socket.io.min.js (1,13697)

engine.io-client:socket creating transport "polling" +0ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762277050-0 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +1ms

engine.io-client:socket setting transport polling +0ms
socket.io.min.js (2,5342)

socket.io-client:manager connect attempt will timeout after 20000 +3ms
socket.io.min.js (1,13697)

socket.io-client:manager readyState opening +0ms
socket.io.min.js (1,13697)

0: Unable to get property 'SavePersonalAndPaymentData' of undefined or null reference
Autoformfill_ContentScript.js (1,1)

engine.io-client:polling polling got data [object ArrayBuffer] +43ms

engine.io-client:socket socket receive: type "open", data "{"sid":"0409f655ccc642f68322c4a9f64c3b66","upgrades":[],"pingTimeout":60000,"pingInterval":25000}" +2ms
socket.io.min.js (2,5342)

engine.io-client:socket socket open +0ms
socket.io.min.js (2,5342)

socket.io-client:manager open +46ms
socket.io.min.js (1,13697)

socket.io-client:socket transport is open - connecting +0ms
socket.io.min.js (1,13697)

engine.io-client:socket starting upgrade probes +1ms
socket.io.min.js (2,5342)

engine.io-client:socket socket receive: type "message", data "0" +0ms
socket.io.min.js (2,5342)

socket.io-parser decoded 0 as %j +0ms [object Object]

connect
index.js (11,5)

socket.io-client:manager writing packet %j +2ms [object Object]

socket.io-parser encoding packet %j +0ms [object Object]

socket.io-parser encoded %j as [object Object] +0ms 2["register",{"username":"goeland"}]

engine.io-client:socket flushing 1 packets in socket +2ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762277100-1&sid=0409f655ccc642f68322c4a9f64c3b66 +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 37:42["register",{"username":"goeland"}] +0ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762277101-2&sid=0409f655ccc642f68322c4a9f64c3b66 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

engine.io-client:polling polling got data [object ArrayBuffer] +41ms

engine.io-client:socket socket receive: type "message", data "2["registered",null]" +2ms
socket.io.min.js (2,5342)

socket.io-parser decoded 2["registered",null] as %j +45ms [object Object]

socket.io-client:socket emitting event %j +47ms registered,

registered
index.js (26,5)

engine.io-client:polling polling +3ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762277148-3&sid=0409f655ccc642f68322c4a9f64c3b66 +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +1ms

engine.io-client:socket writing ping packet - expecting pong within 60000ms +25s
socket.io.min.js (2,5342)

engine.io-client:socket flushing 1 packets in socket +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open POST: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762302107-4&sid=0409f655ccc642f68322c4a9f64c3b66 +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data 1:2 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling polling got data [object ArrayBuffer] +17ms

engine.io-client:socket socket receive: type "pong", data "undefined" +1ms
socket.io.min.js (2,5342)

engine.io-client:polling polling +1ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr poll +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr open GET: http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=1574762302126-5&sid=0409f655ccc642f68322c4a9f64c3b66 +0ms
socket.io.min.js (2,5342)

engine.io-client:polling-xhr xhr data null +0ms

Server log:服务器日志：

C:\Users\rober\project2>flask run
 * Serving Flask app "application.py"
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
[2019-11-26 10:57:44,233] WARNING in __init__: Flask-SocketIO is Running under Werkzeug, WebSocket is not available.
Server initialized for threading.
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
Invalid session e0e081d67cbf4189b990c1dc103da589
127.0.0.1 - - [26/Nov/2019 10:57:44] "GET /socket.io/?EIO=3&transport=polling&t=1574762243279-331&sid=e0e081d67cbf4189b990c1dc103da589 HTTP/1.1" 400 -
f3cc277e7bec49c8b2eba1272d102a6c: Sending packet OPEN data {'sid': 'f3cc277e7bec49c8b2eba1272d102a6c', 'upgrades': [], 'pingTimeout': 60000, 'pingInterval': 25000}
f3cc277e7bec49c8b2eba1272d102a6c: Sending packet MESSAGE data 0
127.0.0.1 - - [26/Nov/2019 10:57:44] "GET /socket.io/?EIO=3&transport=polling&t=1574762264065-380 HTTP/1.1" 200 -
f3cc277e7bec49c8b2eba1272d102a6c: Received packet MESSAGE data 2["register",{"username":"robert"}]
received event "register" from f3cc277e7bec49c8b2eba1272d102a6c [/]
register
127.0.0.1 - - [26/Nov/2019 10:57:44] "POST /socket.io/?EIO=3&transport=polling&t=1574762264385-381&sid=f3cc277e7bec49c8b2eba1272d102a6c HTTP/1.1" 200 -
emitting event "registered" to f3cc277e7bec49c8b2eba1272d102a6c [/]
f3cc277e7bec49c8b2eba1272d102a6c: Sending packet MESSAGE data 2["registered",null]
127.0.0.1 - - [26/Nov/2019 10:57:44] "GET /socket.io/?EIO=3&transport=polling&t=1574762264393-382&sid=f3cc277e7bec49c8b2eba1272d102a6c HTTP/1.1" 200 -
Invalid session e0e081d67cbf4189b990c1dc103da589
127.0.0.1 - - [26/Nov/2019 10:57:45] "POST /socket.io/?EIO=3&transport=polling&t=1574762265345-332&sid=e0e081d67cbf4189b990c1dc103da589 HTTP/1.1" 400 -
ca6c4332a9f347eab56882912b70a309: Sending packet OPEN data {'sid': 'ca6c4332a9f347eab56882912b70a309', 'upgrades': [], 'pingTimeout': 60000, 'pingInterval': 25000}
ca6c4332a9f347eab56882912b70a309: Sending packet MESSAGE data 0
127.0.0.1 - - [26/Nov/2019 10:57:45] "GET /socket.io/?EIO=3&transport=polling&t=1574762265792-4 HTTP/1.1" 200 -
44e90573522c46f583a5811c21a2cf97: Sending packet OPEN data {'sid': '44e90573522c46f583a5811c21a2cf97', 'upgrades': [], 'pingTimeout': 60000, 'pingInterval': 25000}
44e90573522c46f583a5811c21a2cf97: Sending packet MESSAGE data 0
127.0.0.1 - - [26/Nov/2019 10:57:47] "GET /socket.io/?EIO=3&transport=polling&t=1574762267360-333 HTTP/1.1" 200 -
44e90573522c46f583a5811c21a2cf97: Received packet MESSAGE data 2["register",{"username":"robert"}]
received event "register" from 44e90573522c46f583a5811c21a2cf97 [/]
register
127.0.0.1 - - [26/Nov/2019 10:57:48] "POST /socket.io/?EIO=3&transport=polling&t=1574762267414-334&sid=44e90573522c46f583a5811c21a2cf97 HTTP/1.1" 200 -
emitting event "registered" to 44e90573522c46f583a5811c21a2cf97 [/]
44e90573522c46f583a5811c21a2cf97: Sending packet MESSAGE data 2["registered",null]
127.0.0.1 - - [26/Nov/2019 10:57:48] "GET /socket.io/?EIO=3&transport=polling&t=1574762267420-335&sid=44e90573522c46f583a5811c21a2cf97 HTTP/1.1" 200 -
ca6c4332a9f347eab56882912b70a309: Received packet MESSAGE data 2["register",{"username":"goeland"}]
received event "register" from ca6c4332a9f347eab56882912b70a309 [/]
register
127.0.0.1 - - [26/Nov/2019 10:57:51] "POST /socket.io/?EIO=3&transport=polling&t=1574762271133-6&sid=ca6c4332a9f347eab56882912b70a309 HTTP/1.1" 200 -
emitting event "registered" to ca6c4332a9f347eab56882912b70a309 [/]
ca6c4332a9f347eab56882912b70a309: Sending packet MESSAGE data 2["registered",null]
127.0.0.1 - - [26/Nov/2019 10:57:51] "GET /socket.io/?EIO=3&transport=polling&t=1574762265812-5&sid=ca6c4332a9f347eab56882912b70a309 HTTP/1.1" 200 -
127.0.0.1 - - [26/Nov/2019 10:57:51] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [26/Nov/2019 10:57:51] "GET /static/index.js HTTP/1.1" 200 -
ccc77d7deda843fa8a846527cb19e4db: Sending packet OPEN data {'sid': 'ccc77d7deda843fa8a846527cb19e4db', 'upgrades': [], 'pingTimeout': 60000, 'pingInterval': 25000}
ccc77d7deda843fa8a846527cb19e4db: Sending packet MESSAGE data 0
127.0.0.1 - - [26/Nov/2019 10:57:51] "GET /socket.io/?EIO=3&transport=polling&t=1574762271323-0 HTTP/1.1" 200 -
ccc77d7deda843fa8a846527cb19e4db: Received packet MESSAGE data 2["register",{"username":"goeland"}]
received event "register" from ccc77d7deda843fa8a846527cb19e4db [/]
register
127.0.0.1 - - [26/Nov/2019 10:57:51] "POST /socket.io/?EIO=3&transport=polling&t=1574762271378-1&sid=ccc77d7deda843fa8a846527cb19e4db HTTP/1.1" 200 -
emitting event "registered" to ccc77d7deda843fa8a846527cb19e4db [/]
ccc77d7deda843fa8a846527cb19e4db: Sending packet MESSAGE data 2["registered",null]
127.0.0.1 - - [26/Nov/2019 10:57:51] "GET /socket.io/?EIO=3&transport=polling&t=1574762271379-2&sid=ccc77d7deda843fa8a846527cb19e4db HTTP/1.1" 200 -
ccc77d7deda843fa8a846527cb19e4db: Received packet MESSAGE data 2["new_channel",{"channel_name":"channel 3"}]
received event "new_channel" from ccc77d7deda843fa8a846527cb19e4db [/]
127.0.0.1 - - [26/Nov/2019 10:57:56] "GET / HTTP/1.1" 200 -
new_channel
127.0.0.1 - - [26/Nov/2019 10:57:56] "POST /socket.io/?EIO=3&transport=polling&t=1574762276888-4&sid=ccc77d7deda843fa8a846527cb19e4db HTTP/1.1" 200 -
{}
new_channel_created {}
emitting event "channel_created" to ccc77d7deda843fa8a846527cb19e4db [/]
ccc77d7deda843fa8a846527cb19e4db: Sending packet MESSAGE data 2["channel_created","channel 3"]
127.0.0.1 - - [26/Nov/2019 10:57:56] "GET /socket.io/?EIO=3&transport=polling&t=1574762271422-3&sid=ccc77d7deda843fa8a846527cb19e4db HTTP/1.1" 200 -
127.0.0.1 - - [26/Nov/2019 10:57:56] "GET /static/index.js HTTP/1.1" 200 -
0409f655ccc642f68322c4a9f64c3b66: Sending packet OPEN data {'sid': '0409f655ccc642f68322c4a9f64c3b66', 'upgrades': [], 'pingTimeout': 60000, 'pingInterval': 25000}
0409f655ccc642f68322c4a9f64c3b66: Sending packet MESSAGE data 0
127.0.0.1 - - [26/Nov/2019 10:57:57] "GET /socket.io/?EIO=3&transport=polling&t=1574762277050-0 HTTP/1.1" 200 -
0409f655ccc642f68322c4a9f64c3b66: Received packet MESSAGE data 2["register",{"username":"goeland"}]
received event "register" from 0409f655ccc642f68322c4a9f64c3b66 [/]
register
127.0.0.1 - - [26/Nov/2019 10:57:57] "POST /socket.io/?EIO=3&transport=polling&t=1574762277100-1&sid=0409f655ccc642f68322c4a9f64c3b66 HTTP/1.1" 200 -
emitting event "registered" to 0409f655ccc642f68322c4a9f64c3b66 [/]
0409f655ccc642f68322c4a9f64c3b66: Sending packet MESSAGE data 2["registered",null]
127.0.0.1 - - [26/Nov/2019 10:57:57] "GET /socket.io/?EIO=3&transport=polling&t=1574762277101-2&sid=0409f655ccc642f68322c4a9f64c3b66 HTTP/1.1" 200 -

1 个解决方案

解决方案1
 0  2019-11-27 09:49:39

Based on the logs that you have included, the problem is caused by a faulty design in your application.根据您包含的日志，问题是由您的应用程序中的错误设计引起的。

The client requests a new channel to be created through a web form.客户端通过 web 表单请求创建新通道。 The form either submits the data with a GET or a POST request, and this causes the browser to drop the current page and then reload the page that comes with the response of the form submission request.表单使用 GET 或 POST 请求提交数据，这会导致浏览器删除当前页面，然后重新加载表单提交请求响应附带的页面。 When the browser reloads the page it drops all connections, including the Socket.IO link.当浏览器重新加载页面时，它会断开所有连接，包括 Socket.IO 链接。 This is why the messages that occur as a result of this form submission are not being received by your client.这就是您的客户没有收到由于此表单提交而出现的消息的原因。

My recommendation is that you change the form submission to use AJAX, so that it is sent as a background request by the browser, without causing a page reload.我的建议是您将表单提交更改为使用 AJAX，以便浏览器将其作为后台请求发送，而不会导致页面重新加载。

暂无
暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 socketio 客户端正在接收“double + 1”事件 - socketio client is receiving “double + 1” events Socketio将消息发送到命名空间中的特定客户端 - Socketio send message to specific client in namespace Python Flask-socketio工作，未从JS客户端接收数据 - Python Flask-socketio working, not receiving data from JS client 客户端未从服务器接收消息 - Client not receiving message from server flask-socketio 服务器接收到消息，但客户端将其接收为未定义 - flask-socketio server receive the message but the client recieves it as undefined Socket.io客户端未收到消息事件 - Socket.io client not receiving message event 即使建立连接后，Flask socketio也不会收到来自javascript的任何消息 - Flask socketio not receiving any message from javascript even after the connection is established 为什么即使在客户离开房间并加入另一个房间后，消息也会发送到所有房间？ flask socketio - Why message is sent to all rooms even after the client leave the room ad join another room? flask socketio 客户端未从socket.io中的服务器接收消息 - Client is not receiving message from server in socket.io Node.js + Socket.io：客户端未收到消息 - Node.js + Socket.io: Client not receiving message
相关标签
 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM