節點+快遞JS API不工作

Question

我在Node.js的新手，但我更努力一點設置在節點+的結構表達js.I先從前端和單獨的API做structure.I爲API和前端放置一個app.js，但我的API不工作。它給錯誤不能得到/ API /用戶，當我打電話http://localhost:3000/api/users。請幫助

api 
-controllers 
-helpers 
-middlewares 
-models 
-routes.js 
app.js 
controllers 
helpers 
middlewares 
models 
node_modules 
package.json 
public 
views 

app.js

var express = require('express') 
    , app = express() 
    , bodyParser = require('body-parser') 
    , port = process.env.PORT || 3000 

var path = require('path'); 
app.set('views', path.join(__dirname, 'views/')); 
app.set('view engine', 'ejs') 
app.use(express.static(__dirname + '/public')) 
app.use(bodyParser.json()) 
app.use(bodyParser.urlencoded({extended: true})) 
app.use(require('./controllers')) 
var routes = require('./api/routes'); 
app.use('/api', routes); 
app.listen(port, function() { 
    console.log('Listening on port ' + port) 
}) 

routes.js

var express = require('express') 
, router = express.Router() 
var usersController = require('./controllers/users'); 
module.exports = function (app) { 
    app.get('/users', usersController.getUser); 
}; 
module.exports = router; 

users.js（控制器）

module.exports = { 
    getUser: function (req, res) { 
     console.log("sdfdsfdsfsd"); 
     res.setHeader('Content-Type', 'application/json'); 
     res.send(JSON.stringify({"msg": "welcome user"})); 
    } 
} 

Answer 1

在你routes.js文件要導出2的東西。儘量只出口路由器

var express = require('express') 
, router = express.Router() 
var usersController = require('./controllers/users'); 

router.get('/users', usersController.getUser); 

module.exports = router;