static public function getUploadUrl($isAbsolute=true)
    {
        $url = static::getCommon('uploadUrl');
        if ($isAbsolute && strpos($url, 'http') !== 0) {
            $baseUrl = static::getRootUrl();
            $url = rtrim($baseUrl, '/') . '/' . trim($url, '/');
        }
        
        return $url;
    }
static public function getUploadUrl($isAbsolute=true)
    {
        $url = static::getCommon('uploadUrl');
        if ($isAbsolute && strpos($url, 'http') !== 0) {
            $baseUrl = static::getRootUrl();
            $url = rtrim($baseUrl, '/') . '/' . trim($url, '/');
        }
        
        return $url;
    }
static public function getUploadUrl ( $ isAbsolute = true ) { $ url = static :: getCommon ( 'uploadUrl' ) ; if ( $ isAbsolute && strpos ( $ url , 'http' ) !== 0 ) { $ baseUrl = static :: getRootUrl ( ) ; $ url = rtrim ( $ baseUrl , '/' ) . '/' . trim ( $ url , '/' ) ; } return $ url ; }
get uplaod base url
@param  boolean $isAbsolute
@return string
get uplaod base url