java利用Excel文件批量导入数据进入数据库

直接放代码，其中getValue和getWorkbook方法可直接使用。

	private static SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
	@RequestMapping(value = "/savePointExecl", method = { RequestMethod.POST, RequestMethod.GET })
	public void savePointExecl(@RequestParam(value = "attachment[]", required = false) MultipartFile file,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		com.sfy.system.StringUtil.BeforeInvoke(request);
		try {
			if (!file.isEmpty()) {
				Map<String, Object> result = new HashMap<String, Object>();
				
				String originalFilename = file.getOriginalFilename();
				String fileName = sdf.format(new Date()) + JavaEEFrameworkUtils.getRandomString(3)
						+ originalFilename.substring(originalFilename.lastIndexOf("."));
	
				//切换到当前的文件夹
				File filePath = new File(
						getClass().getClassLoader().getResource("/").getPath().replace("/WEB-INF/classes/",
								"/static/attachment/di/" + DateFormatUtils.format(new D