try
        {
            FtpClient ftpClient = new FtpClient();
            ftpClient.openServer("127.0.0.1", 21);
            ftpClient.login("test", "test");
            // if (path.length() != 0)
            // ftpClient.cd(path);
            ftpClient.binary();
            TelnetInputStream is = ftpClient.get("11.JPG");
            ServletOutputStream bos = null;
            HttpServletResponse response = getResponse();//获取Response
            response.reset();
            response.setContentType("image/jpeg");
            response.addHeader("Content-Disposition",
                    "attachment;filename=\"11.jpg\"");
            bos = response.getOutputStream();
            byte[] ary4buffer = new byte[4096];
            for (int iBytesRead = is.read(ary4buffer); -1 != iBytesRead; iBytesRead = is
                    .read(ary4buffer))
            {
                bos.write(ary4buffer, 0, iBytesRead);
            }
            bos.flush();
            bos.close();
            ftpClient.closeServer();
        }
        catch (SocketException ex)
        {
            logger.error(ex);
        }
        catch (IOException ex)
        {
            logger.error(ex);
        }