smartUpload组件单文件下载

public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String filename = request.getParameter("filename");
        SmartUpload su = new SmartUpload();
        su.initialize(getServletConfig(), request, response);
        su.setContentDisposition(null);//关闭默认的打开方式；
        try {
            su.downloadFile("images/"+filename);
        } catch (SmartUploadException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }