String url = "https://cn.avoscloud.com/1.1/stats/appmetrics?"
+ URLEncodedUtils.format(params, "utf-8");
HttpGet httpGet = new HttpGet(url);
httpGet.addHeader("X-AVOSCloud-Application-Id", avosid);
httpGet.addHeader("X-AVOSCloud-Master-Key", avoskey);
HttpClient client = new SSLClient();
HttpResponse resp = client.execute(httpGet);
InputStream is = resp.getEntity().getContent();