Help downloading a file using HttpsURLConnection

Question

Hi All,
I am trying to connect to a page that is actually a cgi page and download a file from there using the httpsURLConnection.
When I run the URL from the browser, I get an authentication challenge...I authenticate, then I get the Download file box where I can download the file.
When I run my code to connect to the URL using the httpsURLConnection, I'm able to authenticate using post then what comes back is the html for the front page. (like an index page or something).
Is this even possible? Any help would be greatly appreciated.
Here's some of the code...
URL url = new URL ("https://.... /file.cgi?.....");
HttpsURLConnection c = null;
c = (HttpsURLConnection)url.openConnection();
c.setRequestMethod("POST");
c.setRequestProperty("Authorization", "Basic " + BasicAuth.encode(user, password));
c.setRequestProperty("User-Agent", "Mozilla/4.0(compatible)");
c.setRequestProperty("Content-Disposition", "attachment;filename=\"events.csv\"");
c.setRequestProperty("Content-Type", "application/x-csv");
c.setRequestProperty( "Accept", "application/x-csv");
c.connect();
//System.out.println(c.getContentEncoding());
System.out.println("Response code: " +c.getResponseCode());
InputStream in = c.getInputStream();
StringBuffer b = new StringBuffer();
BufferedReader r = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = r.readLine()) != null)
b.append(line);
String s = b.toString();
System.out.println(s);

Answer 1

I just noticed that the page it brings back is exactly the page that I get in the browser when I do not type the attributes after the https://---.cgi?.
For example the url is ....cgi?subcmd=Download
So, is there some place I can set these attributes within the java code that isn't in the url field?