code: public static MchOrderInfoResult payPaporderquery(MchOrderquery mchOrderquery,String key){
  		Map<String,String> map = MapUtil.objectToMap(mchOrderquery);
  		String sign = SignatureUtil.generateSign(map,mchOrderquery.getSign_type(),key);
  		mchOrderquery.setSign(sign);
  		String closeorderXML = XMLConverUtil.convertToXML(mchOrderquery);
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  				.setHeader(xmlHeader)
  				.setUri(baseURI()+ "/pay/paporderquery")
  				.setEntity(new StringEntity(closeorderXML,Charset.forName("utf-8")))
  				.build();
  		return LocalHttpClient.executeXmlResult(httpUriRequest,MchOrderInfoResult.class,mchOrderquery.getSign_type(),key);
  	}
docs: 委托代扣-订单查询
  @param mchOrderquery mchOrderquery
  @param key key
  @return MchOrderInfoResult