先创建一个中间件 php artisan make:middleware AcceptHeader ~~~ <?php namespace App\Http\Middleware; use Closure; use Illuminate\Http\Request; class AcceptHeader { /** * Handle an incoming request. * * @param \Illuminate\Http\Request $request * @param \Closure(\Illuminate\Http\Request): (\Illuminate\Http\Response|\Illuminate\Http\RedirectResponse) $next * @return \Illuminate\Http\Response|\Illuminate\Http\RedirectResponse */ public function handle(Request $request, Closure $next) { $request->headers->set('Accept', 'application/json'); return $next($request); } } ~~~ ~~~ namespace App\Http\Kernel.php ~~~; ~~~