docs: public static RefundqueryResult payRefundquery(Refundquery refundquery,String key){
  		Map<String,String> map = MapUtil.objectToMap(refundquery);
  		String sign = SignatureUtil.generateSign(map,refundquery.getSign_type(),key);
  		refundquery.setSign(sign);
  		String refundqueryXML = XMLConverUtil.convertToXML(refundquery);
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  				.setHeader(xmlHeader)
  				.setUri(baseURI()+ "/pay/refundquery")
  				.setEntity(new StringEntity(refundqueryXML,Charset.forName("utf-8")))
  				.build();
  		return LocalHttpClient.executeXmlResult(httpUriRequest,RefundqueryResult.class,refundquery.getSign_type(),key);
  	}