在node.js中使用express路由文件夹

我决定将我的路线从app.js中取出并放入各自的文件夹中，但现在该网站将加载Handlebar文件作为索引，而不是关于或联系-我非常困惑，需要帮助才能获得+1

// Import the express module
var express = require('express');
var path = require("path");
var bodyParser = require("body-parser");

var index = require('./routes/index');
var about = require('./routes/about');
var contact = require('./routes/contact');

var handlebars = require('express-handlebars').create({defaultLayout:'main'});

var app = express();

// Block the header from containing information
// about the server
app.disable('x-powered-by');


app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'handlebars');
app.engine('handlebars', handlebars.engine);

//set static folder
app.use(express.static(__dirname + '/public'));//allows access to public directory

//set bower folder
app.use('/bower_components',  express.static(__dirname + '/bower_components'));//defines bower components directory

//body parser MW
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));

app.set('port', process.env.PORT || 1337);// Defines the port to run on


app.use("/", index);
app.use("/about", about);
app.use("/contact", contact);


app.use(function(req, res){
    res.type('text/html');
    res.status(404);
    res.render('404');
});

app.use(function(err, req, res, next){
    console.error(err.stack);
    res.status(500);
    res.render('500');
});


app.listen(app.get('port'), function(){
    console.log("Express started on http://127.0.0.1:" + app.get('port') + ' Press Ctrl+C to terminate');
    })

这是routes/index.js文件：

    var express = require("express");
    var router = express.Router();

    // Defines the base url
    router.get('/', function(req, res, next){
      // Point at the home.handlebars view
      res.render('home');
    });

    module.exports = router;

和routes/about.js

    var express = require("express");
    var router = express.Router();

    router.get('/about', function(req, res, next){
      res.render('about');
    });

    module.exports = router;

当我转到localhost/contact时，我会看到404页面和相同的for/about页面

---

这些视图位于app/views中，当我在app.js中将它们放到管道中时，它们就工作了，但是自从删除它们之后，它就坏了。任何建议都将不胜感激

这个问题与路由本身有关。假设我们正在寻找/关于：

app.use("/about", about);

然后，应用程序将查看about的routing文件夹，并找到以下内容

var express = require("express");
var router = express.Router();

router.get('/about', function(req, res, next){
  res.render('about');
});

module.exports = router;

因为我在路由器中有另一个/about.get，它将在localhost/about/about上呈现