Problem when file download is canceled

Question

I have been using the following code to download files in a JSP and it works fine, except if the user cancels the download once it has started. Then my application seems to be locked up and the user has to start over. I added some println statements and found that when the cancel button is pressed the code just seems to wait inside the while loop. I thought the finally clause would be called, but I guess I was wrong. Any thoughts on how to continue after a canceled download?
<%
     int size = Integer.parseInt((String)request.getAttribute("FileSize"));
     response.setContentType("APPLICATION/OCTET-STREAM");
     response.setHeader("Content-Disposition",     "attachment; filename=\"" + request.getAttribute("FileName") + "\"");
     response.setContentLength(size);
     java.io.InputStream is = null;
     try {
          is = (java.io.InputStream)request.getAttribute("File");
          int i;
          while ((i=is.read()) != -1) {
               out.write(i);
     } finally {
          out.flush();
          out.close();
          if (is != null) {
               is.close();
%>
Thanks,
- Marc

Answer 1

I am struggling with the same problem, does anyone know a solution to this?
Here is my code:
<%
     FileInputStream fis      = new FileInputStream(filePath + fileName);
     BufferedInputStream bis = new BufferedInputStream(fis);
     response.setContentLength(fis.available());
     response.setContentType("application/octet-stream");
     response.setHeader("Content-disposition","attachment; filename=" + fileName);
     BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream());
     byte[] buff = new byte[1024];
     int bytesRead;
     while(-1 != (bytesRead = bis.read(buff, 0, buff.length)))
          bos.write(buff, 0, bytesRead);
     bos.flush();
     bos.close();
     bis.close();
     fis.close();
     response.flushBuffer();
%>
please help!!