Javascript 节点应用程序路由不工作

我是NodeJS的新手，我创建了以下3个文件，当保存应用程序时，我发现了一个错误

http.createServer(app).listen(**app.get('port')**, function(){

错误未定义，不是函数 我使用nodemon，在终端中看到了错误

我想保留文件的结构（从不同的file-server.js启动服务器），因为我想使用TDD

这是文件

server.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

app.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

requests.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

更新 这是代码中的更新 app.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

requests.js **

server.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

---

您应该调用包含app的模块返回的函数

app = require('./app') ();

此外，在request.js文件中，您应该在应用程序实例上定义路由：

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle');
   })
}

而在app.js中： use（函数（）{}）用于定义中间件。给你打电话

var routes = require('./controllers/requests') (app);

编辑

请在下面的摘要中找到您的意见：

server.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

app.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

requests.js

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});

var routers = require('express')
    , router = express.Router()

router.get('/wild', function(req, res) {
    debugger;
    res.send('Wolf, Fox, Eagle')
})

module.exports = router

  module.exports = function() {
        var express = require('express'),
            app = express();

        app.set('port', process.env.PORT || 3000);
        app.use(function(){
            var routes = require('./controllers/requests') (app);
        });
        return app;

    }

var http = require('http');

app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});**

var http = require('http');
var app = require('./app') ();
http.createServer(app).listen(app.get('port'), function(err){
   console.log('Express server listening on port ' + app.get('port'));
});

module.exports = function() {
   var express = require('express'),
      app = express();

    app.set('port', process.env.PORT || 3000);
    require('./controllers/requests')(app);
    return app;
}

module.exports = function (app) {
   app.get('/wild', function(req, res) {
      res.send('Wolf, Fox, Eagle')
 });
}

---

希望这有帮助

您的

requests.js

无效-您正在使用未定义的

express

变量。请验证您是否正确复制了代码。@LeonidBeschastny谢谢我更改了打字错误，但还是出现了相同的错误…还有其他想法吗？我不知道您更改了哪种打字错误，但现在

requests.js

一团糟。首先，加载express并将其分配给

路由器

变量。然后，您使用未定义的

express

变量来定义另一个

router

变量。然后你在

路由器上调用
.get
，这实际上是一个express，而不是路由器。最后，您将导出
路由器
。您的
router
变量仍然未使用。您的
requests.js
仍然是一片混乱。你肯定应该使用一些linter来静态分析你的代码中的错误。看到你遇到的错误会非常有用。谢谢andre，我应该把app=require（'./app'）（）？你能在重播中提供完整的代码吗（我发布的代码很短…），因为它有点让人困惑。你能帮我吗？我用你的评论更新了帖子，但是我仍然得到了错误，我错过了什么吗？