public String add() throws IOException {
    //		System.out.println(atts);
    if (atts == null || atts.length <= 0) {
      messageService.add(msg, sus, new AttachDto(false), isEmail);
    } else {
      // String uploadPath = ServletActionContext.getServletContext().getRealPath("upload");
      String uploadPath =
          "D:\\teach_source\\class2\\j2EE\\document_project\\document01\\WebContent\\upload";
      messageService.add(
          msg, sus, new AttachDto(atts, attsContentType, attsFileName, uploadPath), isEmail);
    }

    ActionUtil.setUrl("/message_listSend.action");
    return ActionUtil.REDIRECT;
  }
 public String deleteReceive() {
   messageService.deleteReceive(msg.getId());
   ActionUtil.setUrl("/message_listReceive.action");
   return ActionUtil.REDIRECT;
 }