java如何提交网页

[yinjialiang]

各位大侠，假定如下的情形，在浏览网页A时，点击submit按钮，浏览器会提交这个网页，并定向到B页面，如果用程序取代这个submit过程，可以实现吗？

[pioul]

URL url = new URL("http://ip/cgi-bin/");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
PrintWriter out = new PrintWriter(connection.getOutputStream());
String username = "username="+URLEncoder.encode("user", "UTF-8");
String password = "password="+URLEncoder.encode("passwd", "UTF-8");
out.println(username+"&"+password);
out.close();
BufferedReader in= new BufferedReader(new InputStreamReader (connection.getInputStream()));
String line;
line=in.readLine()