neiyou_user_web/app/Http/Middleware/isMaintenance.php

<?php

namespace App\Http\Middleware;

use App\Components\Helpers;
use Closure;
use Illuminate\Http\Request;

class isMaintenance
{
	/**
	 * 校验是否开启维护模式
	 *
	 * @param Request $request
	 * @param Closure $next
	 *
	 * @return mixed
	 */
	public function handle($request, Closure $next)
	{
		if(Helpers::systemConfig()['maintenance_mode']){
			return response()->view('auth.maintenance', ['message' => Helpers::systemConfig()['maintenance_content'], 'time' => Helpers::systemConfig()['maintenance_time']? : '0']);
		}

		return $next($request);
	}
}