/**

     * 下载文件

     * @param msg

     */

    public boolean printOutFile(String fileFullName,String fileName) {

        if (fileFullName == null || "".equals(fileFullName)) {

            return false;

        }

        File file=new File(fileFullName);

        if(!file.exists()){

            return false;

        }

        try {

            HttpServletResponse response=ServletActionContext.getResponse();

            response.setContentType("application/octet-stream");

            response.addHeader("Content-Disposition", "attachment;filename="+URLEncoder.encode(fileName, "UTF-8"));

            response.addHeader("Content-Length", file.length()+"");

            response.setContentLength(((Long)file.length()).intValue());

            ServletOutputStream os=response.getOutputStream();

            FileInputStream fis=new FileInputStream(file);

            int size=;

            byte[] buffer=new byte[];

            while((size=fis.read(buffer))!=-){

                os.write(buffer,,size);

            }

            os.flush();

            os.close();

            fis.close();

            return true;

        } catch (IOException e) {

            e.printStackTrace();

        }

        return false;

    }