[javascript] NodeJS : 서버 포트를 얻는 방법?

Express 4.x 답변 :

Express 4.x (아래 Tien Do의 답변에 따라)는 이제 app.listen ()을 비동기 작업으로 처리하므로 listener.address ()는 app.listen ()의 콜백 내에서만 데이터를 반환합니다.

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

var listener = app.listen(8888, function(){
    console.log('Listening on port ' + listener.address().port); //Listening on port 8888
});

Express 3 답변 :

나는 당신이 이것을 찾고 있다고 생각합니다 (표현식?) :

console.log("Express server listening on port %d", app.address().port)

express명령 에서 디렉토리 구조를 만들 때이 (아래 줄)를 보았을 것입니다 .

alfred@alfred-laptop:~/node$ express test4
   create : test4
   create : test4/app.js
   create : test4/public/images
   create : test4/public/javascripts
   create : test4/logs
   create : test4/pids
   create : test4/public/stylesheets
   create : test4/public/stylesheets/style.less
   create : test4/views/partials
   create : test4/views/layout.jade
   create : test4/views/index.jade
   create : test4/test
   create : test4/test/app.test.js
alfred@alfred-laptop:~/node$ cat test4/app.js

/**
 * Module dependencies.
 */

var express = require('express');

var app = module.exports = express.createServer();

// Configuration

app.configure(function(){
  app.set('views', __dirname + '/views');
  app.use(express.bodyDecoder());
  app.use(express.methodOverride());
  app.use(express.compiler({ src: __dirname + '/public', enable: ['less'] }));
  app.use(app.router);
  app.use(express.staticProvider(__dirname + '/public'));
});

app.configure('development', function(){
  app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});

app.configure('production', function(){
  app.use(express.errorHandler());
});

// Routes

app.get('/', function(req, res){
  res.render('index.jade', {
    locals: {
        title: 'Express'
    }
  });
});

// Only listen on $ node app.js

if (!module.parent) {
  app.listen(3000);
  console.log("Express server listening on port %d", app.address().port)
}

답변

/* No longer valid */
var app = express.createServer();
app.listen();
console.log('Server running on %s', app.address().port);

var express = require('express');
var http = require('http');

var app = express();
var server = http.createServer(app);

app.get('/', function(req, res) {
    res.send("Hello World!");
});

server.listen(3000);
console.log('Express server started on port %s', server.address().port);

var server = http.createServer(function(req, res) {
    ...
}

server.listen(8088);
console.log(server.address());
console.log(server.address().address);
console.log(server.address().port);

{ address: '0.0.0.0', port: 8088 }
0.0.0.0
8088

request.socket.localPort

req.app.settings.port // => 8080 or whatever your app is listening at.

app.listen(1337, function(){
  console.log('Express listening on port', this.address().port);
});

var server = require('express')();

server.get('/', function(req, res) {
  res.send("Hello Foo!");
});

var listener = server.listen(3000);
console.log('Your friendly Express server, listening on port %s', listener.address().port);
// Your friendly Express server, listening on port 3000