php - 调用未定义的方法 Symfony\Component\HttpFoundation\Response::header()

Question

嗨，我正在使用一个 cors 中间件，在我添加 Laravel Passport 之前它似乎工作正常，现在它有问题..它显示错误

 Call to undefined method Symfony\Component\HttpFoundation\Response::header() on line number 36 

这是我的中间件:

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Response;

class Cors
{

    /**
     * Handle an incoming request.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {

// ALLOW OPTIONS METHOD
        $headers = [
            'Access-Control-Allow-Origin' => '*',
            'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, DELETE',
            'Access-Control-Allow-Headers' => "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Authorization , Access-Control-Request-Headers"
        ];


        if ($request->getMethod() == "OPTIONS") {
// The client-side application can set only headers allowed in Access-Control-Allow-Headers
            return Response::make('OK', 200, $headers);
        }

        $response = $next($request);
        foreach ($headers as $key => $value)
            $response->header($key, $value);
        return $response;
    }

}

问题是在 if 条件之后.. 任何帮助将不胜感激

Answer 1

您好，我遇到了同样的问题。这似乎是 Passport 中的错误，并且有许多开发人员处于相同的情况。我刚刚找到了解决这个问题的方法。我们得到这个错误的原因是因为我们在 middleware 中获取的 Response 对象通常是 Illuminate\Http\Response 类的实例，我们可以使用方法 设置 Response headers code>header('Header-Key', 'Header-Value') 而 Passport 处理的 Request 将是 Symfony\Component\HttpFoundation\Response 的一个实例，这就是为什么我们得到错误 调用未定义的方法 Symfony\Component\HttpFoundation\Response::header()

下面是我用来解决这个错误的代码，现在一切正常。我希望它能帮助其他开发人员了解如何修复它，然后适应他们的代码。

$response = $next($request);
$IlluminateResponse = 'Illuminate\Http\Response';
$SymfonyResopnse = 'Symfony\Component\HttpFoundation\Response';
$headers = [
    'Access-Control-Allow-Origin' => '*',
    'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, PATCH, DELETE',
    'Access-Control-Allow-Headers' => 'Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Authorization , Access-Control-Request-Headers',
];

if($response instanceof $IlluminateResponse) {
    foreach ($headers as $key => $value) {
        $response->header($key, $value);
    }
    return $response;
}

if($response instanceof $SymfonyResopnse) {
    foreach ($headers as $key => $value) {
        $response->headers->set($key, $value);
    }
    return $response;
}

return $response;

在我的 Kernel.php

protected $middleware = [
    \App\Http\Middleware\Cors::class,
    // ....
];