javascript - 对象没有方法使用

Question

我正在尝试关注 this教程，关于在 NodeJS 中托管 Cocos2d，但我收到此错误消息:

Object #<Server> has no method 'use'
    at Object.<anonymous>

在这一行中:

server.use('/Art', express.static(__dirname + '/Art') );

这是我的代码:

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

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

server.use('/Art', express.static(__dirname + '/Art') );
server.use('/Platform', express.static(__dirname + '/Platform') );
server.use('/Sounds', express.static(__dirname + '/Sounds') );
server.use('/Src', express.static(__dirname + '/Src') );

server.get('/', function(req,res){
    res.sendfile('index.html');
    console.log('Sent index.html');
});

server.get('/api/hello', function(req,res){
   res.send('Hello Cruel World');
});
server.listen(process.env.PORT || 3000);

Answer 1

错误消息告诉你发生了什么:变量server引用的是Node的Web服务器对象，而不是express应用程序。因此您的代码应更正为:

app.use('/Art', express.static(__dirname + '/Art') );
app.use('/Platform', express.static(__dirname + '/Platform') );
app.use('/Sounds', express.static(__dirname + '/Sounds') );
app.use('/Src', express.static(__dirname + '/Src') );

app.get('/', function(req,res){
    res.sendfile('index.html');
    console.log('Sent index.html');
});

app.get('/api/hello', function(req,res){
    res.send('Hello Cruel World');
});

http.createServer(app).listen(process.env.PORT || 3000);