快速路由:.get() 需要回调函数但得到一个 [object Object] [英] Express routes: .get() requires callback functions but got a [object Object]

问题描述

好的，这对有人来说应该很容易指出.

Ok, this should be easy for somebody to point out.

我检查了其他类似的问题，但没有任何帮助.

I checked the other similar questions and none helped.

我正在尝试将所有路由移动到一个单独的 routes.js 文件中.其中我有:

I'm trying to move all my routes to a separate routes.js file. In it I have:

module.exports = function (app) {

  var user = {
      list : require('./routes/user.js')
    } 
  , index = {
      index : require('./routes/index.js')
    } 


  app.get('/', function(request, response){
    response.send('You made it to the home page.')
  });

  app.get('/users', user.list);
}

在我的 app.js 文件中，我有这个:

And in my app.js file I have this:

var register_routes = require('./routes.js')
register_routes(app)

我的索引路由工作正常，但它在 app.get('/users', user.list); 上出现错误:

My index route works fine, but it kicks back on app.get('/users', user.list); with this error:

.get() 需要回调函数，但得到了一个 [object Object]

.get() requires callback functions but got a [object Object]

这是一个开箱即用的快递应用程序，因此无需过多描述.

This is an out of the box express app so theres not too much to describe.

谢谢.

根据请求，这是 ./routes/user.js 中的内容:

Per request, here is what is in ./routes/user.js :

exports.list = function(req, res){
  res.send("respond with a resource");
};

推荐答案

您使用键 list 导出一个对象，该键将您的函数作为值.

You export an object with the key list having the your function as value.

因此要访问您的功能，您需要执行此操作 require('./routes/user.js').list

So to access your function you would need to do this require('./routes/user.js').list

或者使用您的代码user.list.list.

要解决这个问题，您有两种可能性.

To solve this you have two possibilities.

要么写:

var user = {
  list : require('./routes/user.js').list
}

或者:

module.exports = function(req, res){
   res.send("respond with a resource");
};

编辑

如果你的 routes/user.js 以后可能看起来像这样:

If your routes/user.js will probably later look like this:

module.exports.list = function(req, res){
   res.send("respond with a resource");
};

module.exports.delete = function(req, res){
   res.send("delete user");
};

如果是，那么你可以在你的 routes.js 中这样写:

If yes then you can just write it that way in your routes.js:

var user = require('./routes/user.js');

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