public function bootstrap()
{
define('IS_CLI', PHP_SAPI == 'cli');
define('NOW', $_SERVER['REQUEST_TIME']);
define('__ROOT__', IS_CLI ? '' : trim('http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']), '/\\'));
IS_CLI or define('IS_GET', $_SERVER['REQUEST_METHOD'] == 'GET');
IS_CLI or define('IS_POST', $_SERVER['REQUEST_METHOD'] == 'POST');
IS_CLI or define('IS_DELETE', $_SERVER['REQUEST_METHOD'] == 'DELETE' ? TRUE : isset($_POST['_method']) && $_POST['_method'] == 'DELETE');
IS_CLI or define('IS_PUT', $_SERVER['REQUEST_METHOD'] == 'PUT' ? TRUE : isset($_POST['_method']) && $_POST['_method'] == 'PUT');
IS_CLI or define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
IS_CLI or define('IS_WEIXIN', isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== FALSE);
IS_CLI or define('__URL__', trim('http://' . $_SERVER['HTTP_HOST'] . '/' . trim($_SERVER['REQUEST_URI'], '/\\'), '/'));
IS_CLI or define("__HISTORY__", isset($_SERVER["HTTP_REFERER"]) ? $_SERVER["HTTP_REFERER"] : '');
//加载服务配置项
$servers = (require __DIR__ . '/service.php');
$config = (require ROOT_PATH . '/system/config/service.php');
$servers['providers'] = array_merge($config['providers'], $servers['providers']);
$servers['facades'] = array_merge($config['facades'], $servers['facades']);
$this->servers = $servers;
//自动加载系统服务
Loader::register([$this, 'autoload']);
//绑定核心服务提供者
$this->bindServiceProvider();
//添加初始实例
$this->instance('App', $this);
//设置外观类APP属性
ServiceFacade::setFacadeApplication($this);
//定义错误/异常处理
Error::bootstrap();
//导入类库别名
Loader::addMap(c('app.alias'));
//自动加载文件
Loader::autoloadFile();
//启动服务
$this->boot();
//CLI模式
$this->cli();
//应用开始中间件
\Middleware::exe('app_start');
//解析路由
Route::dispatch();
//记录日志
Log::save();
//中间件
\Middleware::exe('app_end');
}