Laravel框架源码解析之入口文件原理分析

define('LARAVEL_START', microtime(true)); // 获取启动时间

require __DIR__.'/../vendor/autoload.php'; // 加载composer -> autoload.php

$app = require_once __DIR__.'/../bootstrap/app.php';

$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class); // 加载核心类

$response = $kernel->handle(
 $request = Illuminate\Http\Request::capture()
);

$response->send();

$kernel->terminate($request, $response);

$app = new Illuminate\Foundation\Application(
 realpath(__DIR__.'/../')
);

$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
);

protected $middleware = [
   \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
   \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
   \App\Http\Middleware\TrimStrings::class,
   \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
   \App\Http\Middleware\TrustProxies::class,
  ];
  
  /**
   * The application's route middleware groups.
   *
   * @var array
   */
  protected $middlewareGroups = [
   'web' => [
    \App\Http\Middleware\EncryptCookies::class,
    \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
    \Illuminate\Session\Middleware\StartSession::class,
    // \Illuminate\Session\Middleware\AuthenticateSession::class,
    \Illuminate\View\Middleware\ShareErrorsFromSession::class,
    \App\Http\Middleware\VerifyCsrfToken::class,
    \Illuminate\Routing\Middleware\SubstituteBindings::class,
   ],
   
   'api' => [
    'throttle:60,1',
    'bindings',
   ],
  ];

namespace App\Http;
 
use App\Api\Middleware\VerifyApiToken;
use Illuminate\Foundation\Http\Kernel as HttpKernel;
 
class Kernel extends HttpKernel

$response = $kernel->handle(
 $request = Illuminate\Http\Request::capture()
);

$response->send();

$kernel->terminate($request, $response);