Question

我有三台服务器

主服务器 - 侦听所有HTTP请求
套接字服务器1：侦听X类型的套接字请求
套接字服务器2：侦听Y类型的套接字请求

我想使用相同的IP运行所有三台服务器：端口组合，所有三台服务器都有不同的主机名。我更新了本地DNS，即/etc/hosts，将所有三个域名解析为同一个IP，例如127.0.0.1。

我使用VHost根据主机名解析请求并将请求定向到适当的服务器。这是代码：

var express = require('express');
var vhost = require('vhost');
var app = express();
var https = require('https');


var mainServer =  <hostname1> ;
var socketServer1 = <hostname2> ;
var socketServer2 = <hostname3>;


var server = https.createServer(<options>, app);

server.listen(<somePort>,function(){
    console.log('VHost running');
});

var mainApp = require('./app.js');
var socketServerApp1 = require('./socketServer1');
var socketServerApp2 = require('./socketServer2');

app.use(vhost(mainServer, mainApp));
app.use(vhost(socketServer1, socketServerApp1(server)));
app.use(vhost(socketServer2, socketServerApp2(server)));

我在上面的代码中面临的问题是，如果我尝试运行两个套接字服务器，浏览器会抛出如下错误：

WebSocket connection to 'wss://socketServer1:8443/socket.io/?EIO=3&transport=websocket&sid=qlSXz3os5eDI8c_EAAAC' failed: Connection closed before receiving a handshake response

但如果一次只运行一个套接字服务器，那么套接字服务器的工作正常，即如果我评论app.use之一：

app.use(vhost(mainServer, mainApp));
app.use(vhost(socketServer1, socketServerApp1(server)));
//  app.use(vhost(socketServer1, socketServerApp2(server)));

是否无法在同一IP上运行两个套接字服务器：端口组合？

Answer 1

问题是两个套接字服务器都有单独的列表器，这导致了错误。将套接字列表器移动到vhost应用程序可以解决问题。以下是代码：

var express = require('express');
var vhost = require('vhost');
var app = express();
var https = require('https');
var socketio = require('socket.io');


var mainServer =  <hostname1> ;
var socketServer1 = <hostname2> ;
var socketServer2 = <hostname3>;


var server = https.createServer(<options>, app);
var io = socketio.listen(server);

server.listen(<somePort>,function(){
    console.log('VHost running');
});

var mainApp = require('./app.js');
var socketServerApp1 = require('./socketServer1');
var socketServerApp2 = require('./socketServer2');

app.use(vhost(mainServer, mainApp));
app.use(vhost(socketServer1, socketServerApp1(io)));
app.use(vhost(socketServer2, socketServerApp2(io)));

在同一端口上运行两个套接字服务器

1 个答案: