Laravel5.5 构造函数查看是否登录（session）

验证是否登录

public function __construct()

{

$this->request = request();

// 验证是否登录

$this->middleware(function ($request, $next) {

     if (sessino('user')) {

                echo "<script>alert('请先登录!');location.href='" . url('admin/login') . "';</script>";

        }

        return $next($request);

        });

}