Getting fresh copy of file on a web server

[Bob Chad]

Hello,

I have a problem retrieving the lastest copy of a file on a server. It seems to be a cache problem.

I solved the problem when reading .TXT files by using this

    url = new URL(sFname);
    urlConn = url.openConnection();
    urlConn.setDoInput(true);
    urlConn.setUseCaches(false);
    InputStreamReader stream = new InputStreamReader( url.openStream());
    BufferedReader fileReader = new BufferedReader(stream);
         while ((buffer = fileReader.readLine()) != null) {
        //read 
        }

urlConn.setUseCaches(false) forces Java to reload the file from the server

I have a problem when reading XML files, Java will load the XML file from the web server ONCE only.
How can I force Java to reload ?

Here's my code

             
             url = new URL(sFname);
             url.openConnection().setUseCaches(false); // is ignored
                    
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            Document doc = db.parse(url.openStream());
            doc.getDocumentElement().normalize();

            NodeList nList = doc.getElementsByTagName("*");
            for (int s = 0; s < nList.getLength(); s++) {
            // read
            }

If call this code once in my program, it works,
I delete the XML file from the server,
I call this code again using a refresh button,
it still works (??)

Thanks for your help

[Bob Chad]

Ok so this is how to do it. We need to use InputSource
import org.xml.sax.InputSource;

            URLConnection conn = configURL.openConnection();
            conn.setUseCaches( false ); //force reload
            is = conn.getInputStream();
             
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            InputSource source = new InputSource( is );
            DocumentBuilder docBuilder = dbf.newDocumentBuilder();

            Document doc = docBuilder.parse( source );