laravel 如何使用中间件向响应添加标头？
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How do you add headers to a response with a middleware?
提问by Marwelln
I can't figure out how to how to add headers to a response from a middleware. I've used both ->header(...)and ->headers->set(...)but both gives errors. So how do you do it?
我不知道如何向来自中间件的响应添加标头。我已经使用了两者->header(...)，->headers->set(...)但都给出了错误。你是怎么做到的？
First I tried with
首先我试过
public function handle($request, Closure $next) {
$response = $next($request);
$response->headers->set('refresh', '5;url=' . route('foo'));
return $response;
}
which is the same as in Illuminate\Http\Middleware\FrameGuard.php, but that gives
与 in 相同Illuminate\Http\Middleware\FrameGuard.php，但这给出了
Call to a member function set() on a non-object
在非对象上调用成员函数 set()
Second I tried with
第二个我试过
public function handle($request, Closure $next) {
$response = $next($request);
$response->header('refresh', '5;url=' . route('foo'));
return $response;
}
But that gives
但这给
Method [header] does not exist on view.
视图中不存在方法 [header]。
So how do you add headers from a middleware?
那么如何从中间件添加标头呢？
采纳答案by Marwelln
I solved this by using the responsehelper.
我通过使用response助手解决了这个问题。
use Illuminate\Http\RedirectResponse;
$response = $next($request);
$response = $response instanceof RedirectResponse ? $response : response($response);
return $response->header('refresh', '5;url=' . route('foo'));
All my other middleware seems to run fine with this so I guess it's fine.
我的所有其他中间件似乎都运行良好，所以我想这很好。
回答by Waqas Bukhary
Here is a solution tested in Laravel 5.0to attach headers to routes
这是在Laravel 5.0 中测试的将标头附加到路由的解决方案
Create a middleware file app/Http/Middleware/API.php
创建中间件文件 app/Http/Middleware/API.php
<?php namespace App\Http\Middleware;
use Closure;
class API {
public function handle($request, Closure $next)
{
$response = $next($request);
$response->header('Access-Control-Allow-Headers', 'Origin, Content-Type, Content-Range, Content-Disposition, Content-Description, X-Auth-Token');
$response->header('Access-Control-Allow-Origin', '*');
//add more headers here
return $response;
}
}
Add middlewear to kernel file by adding these lines to /app/Http/Kernel.php
通过将这些行添加到内核文件中，将中间件添加到 /app/Http/Kernel.php
protected $middleware = [
//... some middleware here already
'\App\Http\Middleware\API',// <<< add this line if you wish to apply globally
];
protected $routeMiddleware = [
//... some routeMiddleware here already
'api' => '\App\Http\Middleware\API', // <<< add this line if you wish to apply to your application only
];
Group your routes in the routes file /app/Http/routes.php
在路由文件中对路由进行分组 /app/Http/routes.php
Route::group(['middleware' => 'api'], function () {
Route::get('api', 'ApiController@index');
//other routes
});
