How to handle HTTP authentication using HttpURLConnection?

Question

I\'m writing a Java client that POSTs to a HTTP server that requires authentication.
I have to support at least the following three authentication metho

Answer 1

Do you need output streaming? The HttpURLConnection most definitely supports authentication with the Authenticator class, see: Http Authentication.

Update: In case the Authenticator is not an option, you can manually do HTTP basic authentication by adding an extra header to your HTTP request. Try the following code (untested):

String userPassword = username + ":" + password;
String encoding = new sun.misc.BASE64Encoder().encode(userPassword.getBytes());
URLConnection uc = url.openConnection();
uc.setRequestProperty("Authorization", "Basic " + encoding);
uc.connect();