Question

我正在尝试使用PHP和socket.io构建实时聊天应用程序。我无法连接到node.js端。

index.php

<script src="node_modules/socket.io-client/dist/socket.io.js"></script>

var serverLocation = "http://sub.domain.com:3000";

var socket = io(serverLocation);

index.js

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var mysql = require('mysql');
var port = process.env.PORT || 3000;


http.listen(port, function () {
    console.log("Server listening at port %d", port);
});

io.on("connection", function (socket) {
 console.log('test)
})

当我尝试使用应用程序时，它会返回此错误。

GET http://sub.domain.com:3000/socket.io/?EIO=3&transport=polling&t=Mkq7S0V net::ERR_CONNECTION_TIMED_OUT

我试图这样更改连接方法。

var socket = io(serverLocation, {
        transports: ['websocket','polling'],
        forceNew: true
    });

然后出现新错误。

index.js:83 WebSocket connection to 'ws://sub.domain.com:3000/socket.io/?EIO=3&transport=websocket' failed: WebSocket is closed before the connection is established.

Socket.io'在建立连接之前关闭WebSocket。

0 个答案: