StudentController.php中的成员方法

public function activity0()
{return '活动即将开始，敬请期待';
}
public function activity1()
{return '活动火爆进行中';
}
public function activity2()
{return '活动已结束，再见';
}

写中间件App\Http\Middleware/activity.php

namespace App\Http\Middleware;
use Closure;
class activity {public function handle($request, Closure $next) {if(time() < strtotime('2022-02-07')){return redirect('activity0');}return $next($request);}
}

注册中间件app/Http/kernel.php
protected $routeMiddleware 下添加

'activity' => \App\Http\Middleware\activity::class,

使用中间件，在路由中添加

Route::get('activity0', 'studentcontroller@activity0');
Route::group(['middleware'=>['activity']],function(){Route::get('activity1', 'studentcontroller@activity1');Route::get('activity2', 'studentcontroller@activity2');
});