/**
  * 创建并执行当前应用,单应用访问入口
  */
 public function run()
 {
     $this->_app = $this->createApplication($this->_config['web-apps'][$this->_appName], WindFactory::_getInstance());
     set_error_handler(array($this, '_errorHandle'), error_reporting());
     set_exception_handler(array($this, '_exceptionHandle'));
     if ($this->_config['isclosed']) {
         throw new Exception('Sorry, Site has been closed!');
     }
     if ($this->_chain !== null) {
         $this->_chain->getHandler()->handle('onCreate');
     }
     /* @var $router WindRouter */
     $router = $this->_app->getFactory()->getInstance('router');
     $router->route($this->_app->getRequest());
     if ($this->_chain !== null) {
         $this->_chain->getHandler()->handle('onStart');
     }
     $this->_app->run($router);
     if ($this->_chain !== null) {
         $this->_chain->getHandler()->handle('onResponse');
     }
     $this->_app->getResponse()->sendResponse();
     $this->_app->getFactory()->executeDestroyMethod();
     restore_error_handler();
     restore_exception_handler();
 }