Swagger，Express和Node.js中的“无法获取/”

我正在使用Swagger，Express和Node来定义和运行端点。 本地主机/文档上的GET请求返回所有相关的路由。 但是，当我尝试任何路由的GET请求时，它会返回一个“无法获取/ XXX”

Index.js

'use strict'; var fs = require('fs'), path = require('path'), // Basic Setup new express http = require('http'), express = require('express'), mysql = require('mysql'), parser = require('body-parser'); var swaggerTools = require('swagger-tools'); var jsyaml = require('js-yaml'); // Setup express var app = express(); app.use(parser.json()); app.use(parser.urlencoded({ extended: true })); app.set('port', process.env.PORT || 5000); // Database Connection var connection = mysql.createConnection({ host : 'localhost', user : 'root', password : 'root', database : 'sample_database' }); try { connection.connect(); console.log('Database connected!'); } catch(e) { console.log('Database Connetion failed:' + e); } // swaggerRouter configuration var options = { swaggerUi: path.join(__dirname, '/swagger.json'), controllers: path.join(__dirname, './controllers'), useStubs: process.env.NODE_ENV === 'development' // Conditionally turn on stubs (mock mode) }; // The Swagger document (require it, build it programmatically, fetch it from a URL, ...) var spec = fs.readFileSync(path.join(__dirname,'api/swagger.yaml'), 'utf8'); var swaggerDoc = jsyaml.safeLoad(spec); // Initialize the Swagger middleware swaggerTools.initializeMiddleware(swaggerDoc, function (middleware) { // Interpret Swagger resources and attach metadata to request - must be first in swagger-tools middleware chain app.use(middleware.swaggerMetadata()); // Validate Swagger requests app.use(middleware.swaggerValidator()); // Route validated requests to appropriate controller app.use(middleware.swaggerRouter(options)); // Serve the Swagger documents and Swagger UI app.use(middleware.swaggerUi()); // Create server http.createServer(app).listen(app.get('port'), function(){ console.log('Server listening on port ' + app.get('port')); }); }); 

在初始化中间件的同时，我尝试使用：

 app.use(express.static(__dirname + './controllers')); 

但是错误仍然存​​在。 我认为这与路由有关，但我不确定错误在哪里。

代码的目录结构是：

 -my_app | +--controllers | | | +--user.js | +--userService.js +--index.js