minate\Validation\Factory::class, \Illuminate\Contracts\Validation\Factory::class],
'view' => [\Illuminate\View\Factory::class, \Illuminate\Contracts\View\Factory::class],
] as $key => $aliases) {
foreach ($aliases as $alias) {
$this->alias($key, $alias);
}
}
}
1.2 核心类绑定
$app->singleton(
Illuminate\Contracts\Http\Kernel::class,
App\Http\Kernel::class
);
$app->singleton(
Illuminate\Contracts\Console\Kernel::class,
App\Console\Kernel::class
);
$app->singleton(
Illuminate\Contracts\Debug\ExceptionHandler::class,
App\Exceptions\Handler::class
);
绑定重要接口:
1.3 实例化 Http 核心类
$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);
Http 核心类的构造函数
public function __construct(Application $app, Router $router)
{
$this->app = $app;
$this->router = $router;
$router->middlewarePriority = $this->middlewarePriority;
foreach ($this->middlewareGroups as $key => $middleware) {
$router->middlewareGroup($key, $middleware);
}
foreach ($this->routeMiddleware as $key => $middleware) {
$router->aliasMiddleware($key, $middleware);
}
}
上述过程主要做的事是将中间件赋值给路由
核心类 app/Http/Kernel.php
<?php
namespace App\Http;
use Illuminate\Foundation\Http\Kernel as HttpKernel;
class Kernel extends HttpKernel
{
// 全局中间件，最先调用
protected $middleware = [
// 检测是否应用是否进入『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,
];
// 定义中间件组
protected $middlewareGroups = [
// Web 中间件组，应用于 routes/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' => [
// 使用别名来调用中间件
// 请见：https://d.laravel-china.org/docs/5.5/middleware#为路由分配中间件
'throttle:60,1',
'bindings',
],
];
// 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
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