try {
// Create a URLConnection object for a URL
URL url = new URL("http://hostname:80");
URLConnection conn = url.openConnection();
// List all the response headers from the server.
// Note: The first call to getHeaderFieldKey() will implicit send
// the HTTP request to the server.
for (int i=0; ; i++) {
String headerName = conn.getHeaderFieldKey(i);
String headerValue = conn.getHeaderField(i);
if (headerName == null && headerValue == null) {
// No more headers
break;
}
if (headerName == null) {
// The header value contains the server's HTTP version
}
}
} catch (Exception e) {
}