是否可以在Express.js中命名路由 [英] is it possible to name routes in Express.js

问题描述

基本路线如下：

  app.get（'/'，function（req，res）{
 res.send（'hello world'）; 
}）; 
  

是否可以命名该路由并将其提供给任何模板，以便可以像这样使用：

  app.get（'/'，name =index，function（req，res）{
 res.send（'hello world'）; 
}）; 
 
转到站点< a href ={％url index％}>索引页< / a> ;. 
  

灵感来自Django：）

解决方案

没有开箱即用的机制。但是，您可以模仿Django的风格：定义 urls.js 文件，该文件将包含一组URL。首先从：

myviews.js

  exports.Index = function（req，res，next）{
 res.send（hello world！）; 
}; 
  

urls.js

  var MyViews = require（mywviews.js）; 
 
 module.exports = [
 {name：index，pattern：/，view：MyViews.Index} 
] 
  

现在，在 app.js （或任何主要文件）中，您需要将URL绑定到Express。例如：

app.js

  var urls = require（urls.js）; $（$）
 
 for（var i = 0，l = urls.length; i< l; i ++）{
 var url = urls [i]; 
 app.all（url.pattern，url.view）; 
}; 
  

现在您可以定义自定义助手（Express 3.0风格）：

  var urls = require（urls.js），l = urls.length; 
 app.locals.url = function（name）{
 for（var i = 0; i< l; i ++）{
 var url = urls [i]; 
 if（url.name === name）{
 return url.pattern; 
} 
}; 
}; 
  

，您可以轻松地在模板中使用它。现在的问题是，它不会给你像Django这样的花哨的URL创建机制（你可以将其他参数传递给 url ）。另一方面，您可以修改 url 函数并扩展它。我不想在这里进入所有的细节，但下面是一个例子，如何使用正则表达式（你应该可以将它们结合在一起）：

< a href =https://stackoverflow.com/questions/10027574/express-js-reverse-url-route-django-style> Express JS反向URL路由（Django样式）

请注意，我发布了这个问题，所以我之前有同样的问题。 ：D

Basic route is like this:

app.get('/', function(req, res){
  res.send('hello world');
});

Is it possible to name that route and have it available in any template so it can be used like this:

app.get('/', name="index", function(req, res){
  res.send('hello world');
});

Go to site <a href="{% url index %}">index page</a>.

Inspiration comes from Django :)

解决方案

There is no out of the box mechanism for that. However you can mimic Django's style like that: define urls.js file which will hold an array of URLs. First start with:

myviews.js

exports.Index = function( req, res, next ) {
    res.send( "hello world!" );
};

urls.js

var MyViews = require( "mywviews.js" );

module.exports = [
    { name : "index", pattern : "/", view : MyViews.Index }
]

Now in app.js ( or whatever the main file is ) you need to bind urls to Express. For example like this:

app.js

var urls = require( "urls.js" );

for ( var i = 0, l = urls.length; i < l; i++ ) {
    var url = urls[ i ];
    app.all( url.pattern, url.view );
};

Now you can define custom helper ( Express 3.0 style ):

var urls = require( "urls.js" ), l = urls.length;
app.locals.url = function( name ) {
    for ( var i = 0; i < l; i++ ) {
        var url = urls[ i ];
        if ( url.name === name ) {
            return url.pattern;
        }
    };
};

and you can easily use it in your template. Now the problem is that it does not give you fancy URL creation mechanism like in Django ( where you can pass additional parameters to url ). On the other hand you can modify url function and extend it. I don't want to go into all details here, but here's an example how to use regular expressions ( you should be able to combine these to ideas together ):

Express JS reverse URL route (Django style)

Note that I posted the question, so I had the same problem some time ago. :D

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