import sun.print.ServiceDialog; //导入依赖的package包/类
private boolean displayNativeDialog() {
    // "attributes" is required for getting the updated attributes
    if (attributes == null) {
        return false;
    }

    DialogOwner dlgOwner = (DialogOwner)attributes.get(DialogOwner.class);
    Frame ownerFrame = (dlgOwner != null) ? dlgOwner.getOwner() : null;

    WPrintDialog dialog = new WPrintDialog(ownerFrame, this);
    dialog.setRetVal(false);
    dialog.setVisible(true);
    boolean prv = dialog.getRetVal();
    dialog.dispose();

    Destination dest =
            (Destination)attributes.get(Destination.class);
    if ((dest == null) || !prv){
            return prv;
    } else {
        String title = null;
        String strBundle = "sun.print.resources.serviceui";
        ResourceBundle rb = ResourceBundle.getBundle(strBundle);
        try {
            title = rb.getString("dialog.printtofile");
        } catch (MissingResourceException e) {
        }
        FileDialog fileDialog = new FileDialog(ownerFrame, title,
                                               FileDialog.SAVE);

        URI destURI = dest.getURI();
        // Old code destURI.getPath() would return null for "file:out.prn"
        // so we use getSchemeSpecificPart instead.
        String pathName = (destURI != null) ?
            destURI.getSchemeSpecificPart() : null;
        if (pathName != null) {
           File file = new File(pathName);
           fileDialog.setFile(file.getName());
           File parent = file.getParentFile();
           if (parent != null) {
               fileDialog.setDirectory(parent.getPath());
           }
        } else {
            fileDialog.setFile("out.prn");
        }

        fileDialog.setVisible(true);
        String fileName = fileDialog.getFile();
        if (fileName == null) {
            fileDialog.dispose();
            return false;
        }
        String fullName = fileDialog.getDirectory() + fileName;
        File f = new File(fullName);
        File pFile = f.getParentFile();
        while ((f.exists() &&
                  (!f.isFile() || !f.canWrite())) ||
               ((pFile != null) &&
                  (!pFile.exists() || (pFile.exists() && !pFile.canWrite())))) {

            (new PrintToFileErrorDialog(ownerFrame,
                            ServiceDialog.getMsg("dialog.owtitle"),
                            ServiceDialog.getMsg("dialog.writeerror")+" "+fullName,
                            ServiceDialog.getMsg("button.ok"))).setVisible(true);

            fileDialog.setVisible(true);
            fileName = fileDialog.getFile();
            if (fileName == null) {
                fileDialog.dispose();
                return false;
            }
            fullName = fileDialog.getDirectory() + fileName;
            f = new File(fullName);
            pFile = f.getParentFile();
        }
        fileDialog.dispose();
        attributes.add(new Destination(f.toURI()));
        return true;
    }

}