public function setApp($app)
{
if (!is_string($app)) {
throw new Bll_Service_Exception('Invalid App Name');
}
if (is_null(self::$apps)) {
self::$apps = APF::get_instance()->get_config('apps', 'acenter');
}
if (!isset(self::$apps[$app])) {
throw new Bll_Service_Exception('Cannot find config for app:' . $app);
}
// 加载appId和appKey
$this->app = $app;
$this->appId = self::$apps[$this->app]['appId'];
$this->appKey = self::$apps[$this->app]['appKey'];
return $this;
}
