关于laravel路由，"uses"关键字是什么意思? [英] What does the 'uses' keyword mean in regards to laravel routing?

问题描述

我是laravel的新手，正在尽最大努力尝试RTM，但是很难理解一些事情.我认为在路由方面我尚不了解上下文的预期水平.在查看路由文档时，我发现uses关键字允许一个Attach(ing) A Filter To A Controller Action，但这是什么意思?我有一个使用uses关键字的现有站点，但是我对它的实际操作感到困惑.有人可以解释一下(比laravel文档更全面的选项卡)并显示一个非常简单的示例此操作的实际作用吗?

I'm new to laravel and trying my best to RTM but having difficulty understanding a few things. I think there is an expected level on context that I am not aware of when it comes to routing. In reviewing the documentation for routing I see that the uses keyword allows one to Attach(ing) A Filter To A Controller Action, but what does that mean? I have an existing site that is using the uses keyword but I am at a loss at to what it is actually doing. Can someone explain (a tab more thoroughly than the laravel documentation does) and show a very simple example what this actually does?

推荐答案

路由的关键字uses是您定义将用于处理该特定路由的操作(控制器方法或匿名函数)的位置.以以下控制器方法示例为例:

The keyword uses of routing is where you define which action (controller method or anonymous function) will be used to process that particular route. Take this controller method example:

Route::get('user', array('uses' => 'UserController@showProfile'));

它表示uses将在您的UserController类中调用方法showProfile，这将是该类:

It says that uses will call the method showProfile in your UserController class, this would be the class:

class UserController extends Controller {

    public function showProfile 
    {
       return "Hi! I'm the showProfile method!";
    }

}

因此，如果您点击

http://localhost/user

您应该看到消息

Hi! I'm the showProfile method!

因为您的路线执行了您在uses中定义的操作.

Because your route execute that action you defined in the uses.

一个匿名函数(关闭)示例为:

An anonymous function (closure) example would be:

Route::get('user', array('uses' => function() {

    return "Hi, I'm a closure!";

}));

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