Calling a CGI Using POST Method 

 try {
   // Construct data.
   String line = URLEncoder.encode("key1") 
     + "=" + URLEncoder.encode("value1");
   line += &" + URLEncoder.encode("key2") 
     + "=" + URLEncoder.encode("value2");
     
   // Send data.
   URL url = new URL("http://hostname:80/cgi");
   URLConnection conn = url.openConnection();
   conn.setDoOutput(true);
   OutputStreamWriter wr = new OutputStreamWriter(
     conn.getOutputStream());
   wr.write(line);
   wr.flush();
   wr.close();
     
   // Read lines from cgi-script.
   BufferedReader rd = new BufferedReader(
     new InputStreamReader(
       conn.getInputStream()));
   while ((line = rd.readLine()) != null) {
      process(line);
   }
   rd.close();
 } catch (Exception e) {
 }