在 Laravel 中将参数传递给中间件
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Passing parameters to middleware in Laravel
提问by athene
Let's say I have a route pointing to middleware;
假设我有一条指向中间件的路由；
Route::get("/user/{id}", ['middleware' => 'auth', function ($id) {
}]);
And my middleware code is as follows:
我的中间件代码如下：
public function handle($request, Closure $next)
{
return $next($request);
}
If I want to use $idin the middleware, how do I do that?
如果我想$id在中间件中使用，我该怎么做？
回答by Saumya Rastogi
In you case you cannot pass $idinto the middleware.
在你的情况下，你不能$id进入中间件。
Generally you can pass parameters to middleware via using :symbol like this:
通常，您可以通过使用这样的:符号将参数传递给中间件：
Route::get('user/{id}', ['middleware' => 'auth:owner', function ($id) {
// Your logic here...
}]);
And get the passed parameter into middleware method like this:
并将传递的参数放入中间件方法中，如下所示：
<?php
namespace App\Http\Middleware;
use Closure;
class Authentication
{
public function handle($request, Closure $next, $role)
{
if (auth()->check() && auth()->user()->hasRole($role)) {
return $next($request);
}
return redirect('login');
}
}
Note that the
handle()method, which usually only takes a$requestand a$next closure, has athird parameter, which is our middleware parameter. If you passed in multiple parameters to your middleware call in the route definition, just add more parameters to your handle() method
请注意，
handle()通常只接受 a$request和 a的方法$next closure有 athird parameter，这是我们的中间件参数。如果您在路由定义中将多个参数传递给您的中间件调用，只需向您的 handle() 方法添加更多参数
Hope this helps!
希望这可以帮助！
回答by Amit Gupta
You can use one of the following method to access the route parameter in a middleware:
您可以使用以下方法之一访问中间件中的路由参数：
First Method
第一种方法
$request->route()->parameters();
$request->route()->parameters();
This method will return an array of all the parameters.
此方法将返回所有参数的数组。
Second Method
第二种方法
$request->route('parameter_name');
$request->route('parameter_name');
Here parameter_namerefers to what you called the parameter in the route.
这里parameter_name指的是你在路由中调用的参数。
