Lumen处理跨域问题

1. 导包

composer require barryvdh/laravel-cors

2.注册包

在 “bootstrap” 文件夹下的 “app.php” 中添加以下代码

$app->register(Barryvdh\Cors\ServiceProvider::class);

3.创建中间件“CrossRequestMiddleware”

<?php


namespace App\Http\Middleware;

use Closure;

class CrossRequestMiddleware
{

    public function handle($request, Closure $next)
    {

        $response = $next($request);

        header("Access-Control-Allow-Origin: *");
        header('Access-Control-Allow-Headers: X-Requested-With,X_Requested_With');

        return $response;
    }

}

4.注册中间件

在 “bootstrap” 文件夹下的 “app.php” 中添加以下代码

$app->routeMiddleware([
     'auth' => App\Http\Middleware\Authenticate::class,
     'cross' => App\Http\Middleware\CrossRequestMiddleware::class,
 ]);

5.使用中间件

在 “web.php” 中使用跨域中间件

$router->group(['middleware' => 'cross'], function () use ($router) {
    $router->get('/', ‘Controller@index’);
});