File tempFile = File.createTempFile("exist", ".tmp");
File tempFile = File.createTempFile("existSRC", ".tmp");
	private File saveRequestContent(HttpServletRequest request) throws IOException {		ServletInputStream is = request.getInputStream();		int len = request.getContentLength();		// put may send a lot of data, so save it		// to a temporary file first.		File tempFile = File.createTempFile("exist", ".tmp");		OutputStream os = new FileOutputStream(tempFile);		byte[] buffer = new byte[4096];		int count, l = 0;		do {			count = is.read(buffer);			if (count > 0)				os.write(buffer, 0, count);			l += count;		} while (l < len);		os.close();		return tempFile;	}