警告-引发错误:错误:监听EADDRINUSE [英] warn - error raised: Error: listen EADDRINUSE

问题描述

Expressjs代码:-

Expressjs code:-

app.set('port', process.env.PORT || 3000);
app.listen(app.get('port'));
var io = require('socket.io').listen(app.listen(app.get('port')));

给出错误:-

info  - socket.io started
warn  - error raised: Error: listen EADDRINUSE

是错误的，因为我在同一端口上设置了app.listen和io.listen吗?我想运行一个网络服务器，并允许它使用socket.io与服务器通信.

Is the error because i'm setting up the app.listen and io.listen on the same port? I want to run a webserver and allow it to communicate with server using socket.io.

推荐答案

是的，问题是您试图让两个单独的服务器在同一端口上进行监听.

Yes, the problem is that you're trying to have two separate servers listen on the same port.

您可以使用以下方法在同一端口上组合Express和 socket.io :

You can combine Express and socket.io on the same port by using this:

app.set('port', process.env.PORT || 3000);
var server = app.listen(app.get('port'));
var io     = require('socket.io').listen(server);

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