一旦将库icefaces.jar icepush.jar
icefaces_ace.jar添加到我的类路径中以使用ACE组件，我的“另存为”对话框将不会弹出？我不确定这是否是错误，但是在classpath中没有库就可以了。这是我的另存为方法：

    public void downloadFile(String propertyPath) throws IOException {

     ProxyFile fileToDownload = repBean.downloadFile(propertyPath);

     FacesContext facesContext = FacesContext.getCurrentInstance();
     ExternalContext externalContext = facesContext.getExternalContext();
     HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();

     response.reset();         response.setContentType(fileToDownload.getContentType()); 
     response.setHeader("Content-Length", String.valueOf(fileToDownload.getLength()));
     response.setHeader("Content-disposition", "attachment; filename=\"" + fileToDownload.getName() + "\"");

     BufferedInputStream input = null;
     BufferedOutputStream output = null;


     try {
         input = new BufferedInputStream(fileToDownload.getContent());
         output = new BufferedOutputStream(response.getOutputStream());

         byte[] buffer = new byte[10240];
         for (int length; (length = input.read(buffer)) > 0;) {
            output.write(buffer, 0, length);
         }
     } finally {
         output.close();
         input.close();
         facesContext.responseComplete(); 
        }
     }