@RequestMapping("/GroupInfo") @ResponseBody public ModelAndView groupInfo(HttpServletRequest request) throws Exception { ModelAndView mav = new ModelAndView("business/common/groupInfo"); String groupId = request.getParameter("groupId"); BoothGroupDto groupDto = resManage.getBoothGroupInfo(groupId); AttachFileDto attachFileDto = null; String attachFileId = groupDto.getAttachFile(); if (!StringUtils.isEmpty(attachFileId)) { attachFileDto = attachFile.getFileInfo(attachFileId); } mav.addObject("groupDto", groupDto); mav.addObject("attachFileDto", attachFileDto); return mav; }