WEB下的excel批量导入功能

新手学习中，记录一下excel导出功能实现的整个流程。使用框架ssm。

control层 importExcel+parseDataItem：

  @RequestMapping("importExcel.do")
    public String importExcel(@RequestParam MultipartFile uploadfile, 
            HttpServletRequest request, HttpServletResponse response) {
        String fileName = uploadfile.getOriginalFilename();
        if (StringUtils.isEmpty(fileName)) {
            System.out.println("未上传文件名为空");
        }
        String tempPath = request.getSession().getServletContext().getRealPath("/")
                + "upload";
        File dir = new File(tempPath);    
        if (!tempPath.endsWith(File.separator)) {
            tempPath = tempPath + File.separator;
        }
        if (!dir.exists()) {
            dir.mkdirs();
        }
        System.out.println(tempPath);
        //制作路径
        String newFile = tempPath + fileName;
        File file = new File(newFile);        
        try {
            FileCopyUtils.copy(uploadfile.getBytes(), file);
            //导入excel中的内容
            this.parseDataItem(newFile);
            System.out.println("成功导入");
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                FileUtils.forceDelete(file);
            } catch (IOException e) {
                e.printStackTrace();
                return "uploadfail";
            }
        }
        return "uploadsuccess";
    }
	
    public final boolean parseDataItem(String file){
        
       return ysdwAnimalService.importExcel(file);
    }
	

ysdwAnimalService层 import 调用底层通用方法readExcel：

@Transactional
    public boolean importExcel(String file) {
        final int rowStart = 2;
        final int cellStrart = 0;      
        List list = new LinkedList();    
        YsdwAnimal ysdwAnimal = null;
        try {
            List