关于通过excel表关联数据库

public void importBuildInfoExcel(@RequestParam(value = "uploadFile", required = false) MultipartFile file, HttpServletRequest request,HttpServletResponse response) throws IOException  {
	
		response.setContentType("text/xml;charset=utf-8"); 
		List<Map<String, Object>> mapList=new ArrayList<Map<String, Object>>();
		Map<String, Object> model = new HashMap<String, Object>();
		List<BaseArena>  modelList =new ArrayList<BaseArena>();
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		try {
			mapList=excelUtils.transFile2MapList(file);
		 for(int a =0; a < mapList.size(); a++){
			 BaseArena baseArena=new BaseArena();
			 baseArena=(BaseArena) excelUtils.transMap2Bean(mapList.get(a), baseArena);
			 String lastEditTime=formatter.format(new Date());//变更时间
			 baseArena.setLastEditTime(lastEditTime);
		//	 baseArenaDAO.saveOrUpdate(baseArena);
			 modelList.add(baseArena);
		 }
		 baseArenaDAO.saveUpdate(modelList);
	    model.put( "status", "success");
	    model.put("message", "导入成功！");
		} catch (Exception e) {
			
			logger.error(e.getLocalizedMessage(), e);
			model.put( "message", e.getLocalizedMessage());
		    model.put("status", "导入失败！");
			e.printStackTrace();
		}
		JSONObject returnData = null; 
		returnData = JSONObject.fromObject(model);//转JSON  
		response.getWriter().print(returnData );//打印  
		
	}