Download file using HtmlUnit

Question

I am trying to download xls file for a website. When I click the link to download the file, I get a javascript confirm box. I handle it like below

    ConfirmHan         


        

Answer 1

There's an easier way if you're not into wrapping HtmlUnit with Selenium. Simply provide HtmlUnit's WebClient with the extended WebWindowListener.

You could also use Apache commons.io for easy stream copying.

WebClient webClient = new WebClient();
webClient.addWebWindowListener(new WebWindowListener() {
    public void webWindowOpened(WebWindowEvent event) { }

    public void webWindowContentChanged(WebWindowEvent event) {
        // Change or add conditions for content-types that you would
        // to like receive like a file.
        if (response.getContentType().equals("text/plain")) {
            try {
                IOUtils.copy(response.getContentAsStream(), new FileOutputStream("downloaded_file"));
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

    public void webWindowClosed(WebWindowEvent event) {}
});