Laravel5.7 跨域请求

1、先检查app/Http/Middleware/ 下是否有EnableCrossRequestMiddleware.php 这个文件，没有此文件使用此命令创建

 1 php artisan make:middleware EnableCrossRequestMiddleware

2、然后修改EnableCrossRequestMiddleware.php 的handle

 1  /**
 2  * Handle an incoming request.
 3  *
 4  * @param  IlluminateHttpRequest  $request
 5  * @param  Closure  $next
 6  * @return mixed
 7  */
 8 public function handle($request, Closure $next)
 9 {
10     $response = $next($request);
11     $origin = $request->server('HTTP_ORIGIN') ? $request->server('HTTP_ORIGIN') : '';
12     $allow_origin = [
13         'http://127.0.0.1:8080',//允许访问
14     ];
15     if (in_array($origin, $allow_origin)) {
16         $response->header('Access-Control-Allow-Origin', $origin);
17         $response->header('Access-Control-Allow-Headers', 'Origin, Content-Type, Cookie, X-CSRF-TOKEN, Accept, Authorization, X-XSRF-TOKEN');
18         $response->header('Access-Control-Expose-Headers', 'Authorization, authenticated');
19         $response->header('Access-Control-Allow-Methods', 'GET, POST, PATCH, PUT, OPTIONS');
20         $response->header('Access-Control-Allow-Credentials', 'true');
21     }
22     return $response;
23 }

3、找到app/Http/Kernel.php文件中的 protected $middleware

1     protected $middleware = [
2     AppHttpMiddlewareCheckForMaintenanceMode::class,
3     IlluminateFoundationHttpMiddlewareValidatePostSize::class,
4     AppHttpMiddlewareTrimStrings::class,
5     IlluminateFoundationHttpMiddlewareConvertEmptyStringsToNull::class,
6     AppHttpMiddlewareTrustProxies::class,
7     AppHttpMiddlewareEnableCrossRequestMiddleware::class,//新增跨域中间件
8 ];