validating URLs

[drkestrel]

I have codes that sets a URL and pass it onto Image myImage= new Image(myURL);

The problem is there doesn't seem to be any validation of the URL (i.e. the file actually exists at the stated URL) with the URL' constructor.

I even manage to call myURL.openConnection.connect() with no exceptions thrown at all.

What do I need to do to validate the existence of a file? FYI I am using merely the file protocol

 

[toolkit]

A little test code:

public class TestURL {

    public static void main( String[] args ) {

        try {
            URL good = new URL( "[URL unfurl="true"]http://www.tek-tips.com"[/URL] );
            good.openConnection().connect();
            URL hmm  = new URL( "[URL unfurl="true"]http://doesnt.really.exist"[/URL] );
            hmm.openConnection().connect();
            URL bad  = new URL( "xyz" );
            bad.openConnection().connect();
        } catch( Exception e ) {
            System.out.println( "Bad URL: " + e.getMessage() );
            e.printStackTrace();
        }
    }
}

Falls over with:

Bad URL: doesnt.really.exist
java.net.UnknownHostException: doesnt.really.exist
        etc...

So it looks like its working to me. Perhaps if you show us the URL you are trying to reach?
Cheers, Neil