/**
* 文件上传
*
* @return bool
*/
public function uploadAction()
{
header('Access-Control-Allow-Origin:*');
header('Access-Control-Allow-Headers: X-Requested-With,X_Requested_With');
$sFrom = $this->getParam('from');
//上传来源，对应oss中的二级文件夹名
$aData = Oss_Index::uploadImage($sFrom);
if (empty($aData)) {
return $this->showMsg('图片上传失败', false);
}
return $this->showMsg($aData, true);
}