[游戏开发]laravel 框架 - Controller 之 中间件Middleware

?比如我们想通过中间件实现这样的一个功能，当日期未到达某一天时，显示活动敬请期待页面，当到达活动时间时，活动页面可以正常访问。

1. 如何定义中间件？

? ? ? ? 1> 在app\Http\Middleware文件夹下创建中间件php

<?php

namespace App\Http\Middleware;

use App\Http\Controllers\Controller;
use Closure;
use Illuminate\Http\Request;

class Activity{
    public function handle(Request $request, Closure $next){
        if(time() < strtotime('2022-04-10')){
            return redirect('activity0');
        }
        return $next($request);
    }
}

? ? ? ? 2> 将新创建的中间件名字添加到kernel.php 中2.

 /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used individually.
     *
     * @var array
     */
    protected $routeMiddleware = [
        'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
        'activity'=> \App\Http\Middleware\Activity::class,   // 添加的中间件
    ];

2. 如何使用中间件

? ? ? ? 1> 在路由中可以这样定义

/*
 *  中间件，如果当前时间没有到达某一天，则活动不开始
 * **/
Route::get('activity0', 'StudentController@activity0');
Route::group(['middleware'=>['activity']], function(){
    Route::get('activity1', 'StudentController@activity1');
    Route::get('activity2', 'StudentController@activity2');
});

? ? ? ? ?2> 定义对应的controller

  public function activity0(){
        echo '活动即将开始，敬请期待';
    }

    public function activity1(){
        echo '活动进行中，我是活动1';
    }

    public function activity2(){
        echo '活动进行中，我是活动2';
    }