struts+jspsmartupload问题

Question

弹出的错误信息是java.lang.NegativeArraySizeException,请大家帮帮忙阿

Answer 1

直接使用struts里自带的上传组件不就行了，更简单方便

Answer 2

struts 没有下载这个例子,而smartupload 在ACTION用不知道为什么不好使?
  SmartUpload su = new SmartUpload();
          try {
            su.initialize(getServlet().getServletConfig(), httpServletRequest,
                          httpServletResponse);
          }
          catch (ServletException ex) {
          }
          su.setContentDisposition(null);
          String key = new String("key");
          try {
            su.downloadFile(key, "application/x-msdownload", "aa.txt");
          }
          catch (ServletException ex) {
          }
          catch (IOException ex) {
          }
          catch (SmartUploadException ex) {
          }
          httpServletRequest.setAttribute("ActionForm", ActionForm);
          return (actionMapping.findForward("new"));页面根本没显示