logger.info("用来检测 sdk 的使用情况，要不要加上商户信息：{}",config.getMchID());
StringEntity postEntity = new StringEntity(data, "UTF-8");
httpPost.addHeader("Content-Type", "text/xml");
httpPost.addHeader("User-Agent", "wxpay sdk java v1.0 " + config.getMchID());  // TODO: 很重要，用来检测 sdk 的使用情况，要不要加上商户信息？
httpPost.setEntity(postEntity);

logger.info("httpResponse");
HttpResponse httpResponse = httpClient.execute(httpPost);

本地,测试环境请求无问题,httpClient.execute(httpPost);正常通过,但放生产环境上失败.一直无法得到响应