HttpsURLConnection sCon = (HttpsURLConnection) con;
TrustManager[] trustManager = new TrustManager[] { new SimpleTrustManager() };
SSLContext context = SSLContext.getInstance("TLS");
context.init(new KeyManager[0], trustManager, new SecureRandom());
sCon.setSSLSocketFactory(context.getSocketFactory());
sCon.setHostnameVerifier(new AllowAllHostnameVerifier());
}
StringWriter sw = new StringWriter();
IOUtils.copy(con.getInputStream(), sw);
con.disconnect();