javascript - Ratchet WebSocket(失败 : WebSocket opening handshake timed out)

Question

我使用 Ratchet 和 JS 客户端创建了一个 websocket 服务器。每当 JS 客户端连接到服务器时，连接会空闲 4 分钟，然后才会给我握手超时。我试过禁用防火墙，更改端口，使用另一个 webBrowser，甚至尝试过在线教程，但到目前为止没有任何效果。请帮忙!

这是服务器代码:

<?php

use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
use Ratchet\Server\IoServer;

require __DIR__ . '/vendor/autoload.php';

class RatchetWebSocketServer implements MessageComponentInterface{


public function onClose(ConnectionInterface $conn) {

}

public function onError(ConnectionInterface $conn, \Exception $e) {
    $conn->send($e->getMessage());
}

public function onMessage(ConnectionInterface $from, $msg) {
    $from->send("Server returned : ".$msg);
}

public function onOpen(ConnectionInterface $conn) {

}

}


$server = IoServer::factory(new RatchetWebSocketServer(), 8888);
$server->run();

这是 JS 客户端代码:

function startServer(){
    try{
        var socket = new WebSocket("ws://127.0.0.1:80/CharlieTaxi/RatchetWebSocketServer.php");

        socket.onopen  = function(){

            console.log("Socket Status: "+socket.readyState);
            //send message to socket server
            socket.send("Hello from Alfred to Server");
            socket.close();
        };

        socket.onmessage = function(msg){
            console.log(msg.data);
//            socket.close();
        };

        socket.onclose = function(){
            console.log('connection is closed!');
        };
    }
    catch(e){
        console.log(e);
    }

}

这是请求 header (Chrome 浏览器):

Provisional headers are shown // this line is in bold with a yellow warning sign on the left
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8-
Cache-Control:no-cache
Connection:Upgrade
Cookie:PHPSESSID=pgo5ma6o5mlh6k9mtfcad4k6d4
Host:127.0.0.1
Origin:http://127.0.0.1
Pragma:no-cache
Sec-WebSocket-Extensions:permessage-deflate; client_max_window_bits
Sec-WebSocket-Key:sVGKPRvSUghm1xdCgBQCsA==
Sec-WebSocket-Version:13
Upgrade:websocket
User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36

这是超时后的控制台输出:

WebSocket connection to 'ws://127.0.0.1/CharlieTaxi/RatchetWebSocketServer.php' failed: WebSocket opening handshake timed out

这是 composer.json 文件的内容:

{
    "require": {
        "cboden/ratchet": "0.3.*"
    }
}

Answer 1

您未正确连接到您的 websocket。一个 websocket 不仅仅是一个你连接的文件，它必须是它自己的进程。在命令行运行中，导航到 RatchetWebSocketServer.php 存储的目录并运行

php RatchetWebSocketServer.php 文件


然后在 javascript 中连接到 127.0.0.1:8888 并且 WebSocket 应该可以工作。

不要忘记，每次更改 WebSocket 代码时，您都需要停止该 php xx 命令并重新启动它。