Ci rivediamo di qua:

Dal forum della sun
codice:
URL azCon = new URL("http://tuosito.com/tuoformupload.php");
HttpURLConnection yc = (HttpURLConnection)azCon.openConnection();
yc.setDoOutput(true);
File fi = new File("C:\\tuofiledauppare.jpg"); 
DataOutputStream printout;
printout = new DataOutputStream (yc.getOutputStream ());
String contentType = new String();
String input;
FileReader file = new FileReader(fi);
BufferedReader inFile = new BufferedReader(file);
while ((input = inFile.readLine()) != null)
{
contentType = contentType + input;
contentType = contentType + "\r\n";
}
printout.writeBytes(contentType);

printout.flush ();
printout.close ();