URL url = new URL(
"http://huellasolar.com/visorweb/client_serv/serv_sunperc.php");
WebRequest req = new WebRequest(url, HttpMethod.POST);
List<NameValuePair> l = new ArrayList<NameValuePair>();
l.add(new NameValuePair("user_key", clave));
// l.add(new NameValuePair("x", String.valueOf((lon))));
l.add(new NameValuePair("x", String.valueOf(lon)));
// l.add(new NameValuePair("y", String.valueOf((lat))));
l.add(new NameValuePair("y", String.valueOf(lat)));
l.add(new NameValuePair("mes", String.valueOf(mes)));
l.add(new NameValuePair("userdia", String.valueOf(dia)));
l.add(new NameValuePair("hora", String.valueOf(hora)));
req.setRequestParameters(l);
HtmlPage pageRes = webClient.getPage(req);
res = pageRes.getBody().asText();
} catch (FailingHttpStatusCodeException | IOException e) {