I use javaFx WebViewBrowser to download ZIP file, the page no action

Question

I use javaFx WebViewBrowser to download ZIP file, the page no action; other tools example chrome ,ie can download the zip file .
so can you writer a download zip file example for me ?
thanks ,my english is so bad ,sorry !!! :)

Answer 1

WebView doesn't have a built in file downloader - you have to implement it yourself.
You can find a sample implementation for file downloads in JavaFX here =>
http://www.zenjava.com/2011/11/14/file-downloading-in-javafx-2-0-over-http/
That sample does not include the hooks into WebView to trigger the downloads.
You will need to trigger off the mime type or the file extension in the url.
A rudimentary sample trigger a download off of webview is provided in the code below.
For a nice solution, you would probably want to spin the downloader off with it's own UI similar and manage the download itself as a JavaFX Task similar to how the zenjava component works.
Code adapted from => http://code.google.com/p/willow-browser/source/browse/src/main/java/org/jewelsea/willow/BrowserWindow.java
// monitor the location url, and if it is a pdf file, then create a pdf viewer for it, if it is downloadable, then download it.
view.getEngine().locationProperty().addListener(new ChangeListener<String>() {
  @Override public void changed(ObservableValue<? extends String> observableValue, String oldLoc, String newLoc) {
    if (newLoc.endsWith(".pdf")) {
      try {
        final PDFViewer pdfViewer = new PDFViewer(false);  // todo try icepdf viewer instead...
        pdfViewer.openFile(new URL(newLoc));
      } catch (Exception ex) {
        // just fail to open a bad pdf url silently - no action required.
    String downloadableExtension = null;  // todo I wonder how to find out from WebView which documents it could not process so that I could trigger a save as for them?
    String[] downloadableExtensions = { ".doc", ".xls", ".zip", ".tgz", ".jar" };
    for (String ext: downloadableExtensions) {
      if (newLoc.endsWith(ext)) {
        downloadableExtension = ext;
        break;
    if (downloadableExtension != null) { 
      // create a file save option for performing a download.
      FileChooser chooser = new FileChooser();
      chooser.setTitle("Save " + newLoc);
      chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Downloadable File", downloadableExtension));
      int filenameIdx = newLoc.lastIndexOf("/") + 1;
      if (filenameIdx != 0) {
        File saveFile = chooser.showSaveDialog(view.getScene().getWindow());
        if (saveFile != null) {
          BufferedInputStream  is = null;
          BufferedOutputStream os = null;
          try {
            is = new BufferedInputStream(new URL(newLoc).openStream());
            os = new BufferedOutputStream(new FileOutputStream(saveFile));
            int b = is.read();
            while (b != -1) {
              os.write(b);
              b = is.read();
          } catch (FileNotFoundException e) {
            System.out.println("Unable to save file: " + e);
          } catch (MalformedURLException e) {
            System.out.println("Unable to save file: " + e);
          } catch (IOException e) {
            System.out.println("Unable to save file: " + e);
          } finally {
            try { if (is != null) is.close(); } catch (IOException e) { /** no action required. */ }
            try { if (os != null) os.close(); } catch (IOException e) { /** no action required. */ }
        // todo provide feedback on the save function and provide a download list and download list lookup.
});