How to quickly check if URL server is available

Question

I have a URL in the form

http://www.mywebsite.com/util/conv?a=1&from=%s&to=%s

And want to check if it is available.

The lin

Answer 1

public static boolean exists(String URLName) {

        try {
            HttpURLConnection.setFollowRedirects(false);
            // note : you may also need
            // HttpURLConnection.setInstanceFollowRedirects(false)
            HttpURLConnection con = (HttpURLConnection) new URL(URLName)
            .openConnection();
            con.setRequestMethod("HEAD");
            return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }