code: public static TransfersResult mmpaymkttransfersPromotionTransfers(Transfers transfers,String key){
  		Map<String,String> map = MapUtil.objectToMap( transfers);
  		String sign = SignatureUtil.generateSign(map,transfers.getSign_type(),key);
  		transfers.setSign(sign);
  		String secapiPayRefundXML = XMLConverUtil.convertToXML( transfers);
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  				.setHeader(xmlHeader)
  				.setUri(baseURI()+ "/mmpaymkttransfers/promotion/transfers")
  				.setEntity(new StringEntity(secapiPayRefundXML,Charset.forName("utf-8")))
  				.build();
  		return LocalHttpClient.keyStoreExecuteXmlResult(transfers.getMchid(),httpUriRequest,TransfersResult.class,transfers.getSign_type(),key);
  	}
docs: 企业付款 <br>
  接口调用规则：<br>
  给同一个实名用户付款，单笔单日限额2W/2W<br>
  给同一个非实名用户付款，单笔单日限额2000/2000<br>
  一个商户同一日付款总额限额100W<br>
  单笔最小金额默认为1元<br>
  每个用户每天最多可付款10次，可以在商户平台--API安全进行设置<br>
  给同一个用户付款时间间隔不得低于15秒<br>
  
  @param transfers
  transfers
  @param key
  key
  @return TransfersResult