function buildRequestHttpInFile($para_temp, $file_para_name, $file_name)
{
//待请求参数数组
$para = $this->buildRequestPara($para_temp);
$para[$file_para_name] = "@" . $file_name;
//远程获取数据
$sResult = getHttpResponsePOST($this->alipay_gateway_new, $this->alipay_config['cacert'], $para, trim(strtolower($this->alipay_config['input_charset'])));
return $sResult;
}