Test for URL exist and redirect if not

Question

Hi people,
Ive never done any java programming in the past, so i've done a few tutorials and a lot of google searching, but I dont know where to start and would really appreciate someone either pointing me in the right direction, or actually putting the code in their post that I can copy and paste please. I dont even know if its possible.
What I need to do is check a URL on a local webserver to see if the website exists, or is running and if it is then goto that local url. If it doesnt then to redirect to another local webserver and url.
Something along the lines of
Check url servername/path/logon.aspx
if that exists the go to servername/path/logon.aspx
if it doesnt exist go to servername2/path/logon.aspx
Really appreciate your help

Answer 1

This should do what you want..
String[] urlPaths = {"Non working path", "http://www.sun.com", "Another path"};
URL url = null;
for(int i = 0; i < urlPaths.length; i++) {
     try {
          System.out.println("yay1");
          url = new URL(urlPaths);
          System.out.println("yay2");
          InputStream is = url.openStream();
          System.out.println("yay3");
          break;//Stops the forloop
     } catch(Exception e) {
          //If you get an exception you can be rather certain that you don't have a
          //connection established.
EDIT: A bit to slow..
Edited by: prigas on Nov 25, 2008 6:41 AM