Laravel 5.5框架 核心类Kernel

<?phpnamespace App\Http;use Illuminate\Foundation\Http\Kernel as HttpKernel;class Kernel extends HttpKernel{    /**     * The application's global HTTP middleware stack.     *     * These middleware are run during every request to your application.     * 全局中间件，最先调用     * @var array     */    protected $middleware = [        // 检测是否进入[维护模式]        // 见：https://d.laravel-china.org/docs/5.5/configuration#maintenance-mode        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,        // 检测请求的数据是否过大        \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,        // 对提交的请求参数进行 php 函数 `trim()` 处理        \App\Http\Middleware\TrimStrings::class,        // 将提交的请求参数中空子串转换为 null        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,        // 修正代理服务器后的服务器参数        \App\Http\Middleware\TrustProxies::class,    ];    /**     * The application's route middleware groups.     * 定义中间件组     * @var array     */    protected $middlewareGroups = [        // web 中间件组，应用于 route/web.php 路由文件        'web' => [            // cookie 加密解密            \App\Http\Middleware\EncryptCookies::class,            // 将 cookie 添加到响应中            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,            // 开启会话            \Illuminate\Session\Middleware\StartSession::class,            // 认证用户，此中间件以后 Auth 类才能生效            // 见：https://d.laravel-china.org/docs/5.5/authentication            \Illuminate\Session\Middleware\AuthenticateSession::class,            // 将系统的错误数据注入到视图变量 $errors 中            \Illuminate\View\Middleware\ShareErrorsFromSession::class,            // 检验 CSRF ,防止跨站请求伪造的安全威胁            // 见：https://d.laravel-china.org/docs/5.5/csrf            \App\Http\Middleware\VerifyCsrfToken::class,            // 处理路由绑定            // 见：https://d.laravel-china.org/docs/5.5/routing#route-model-binding            \Illuminate\Routing\Middleware\SubstituteBindings::class,        ],        // API 中间件组，应用于 routes/api.php 路由文件        'api' => [            // 使用别名来调中间件            // 请见：https://d.laravel-china.org/docs/5.5/middleware#为路由分配中间件            'throttle:60,1',            'bindings',        ],    ];    /**     * The application's route middleware.     *     * These middleware may be assigned to groups or used individually.     * 中间件别名设置，允许你使用别名调用中间件，例如上面的 api 中间件组调用     * @var array     */    protected $routeMiddleware = [        // 只有登录用户才能访问，我们在控制器的构造方法中大量使用        'auth' => \Illuminate\Auth\Middleware\Authenticate::class,        // HTTP Basic Auth 认证        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,        // 处理路由绑定        // 见：https://d.laravel-china.org/docs/5.5/routing#route-model-binding        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,        // 用户授权功能        'can' => \Illuminate\Auth\Middleware\Authorize::class,        // 只有游客才能访问，在register 和 login 请求中使用，只有未登录的用户才能访问这些页面        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,        // 访问节流，类似于 [1分钟只能请求 10 次]的需求，一般在 API 中使用        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,    ];}