poi导入excel 根据文件名区分07(.xlsx)和03 (.xls)两种情况进行解析

@RequestMapping(value = "/importMapping", method = RequestMethod.POST)
@ResponseBody
public void importPos(
        @RequestParam(value = "file", required = false) CommonsMultipartFile file,
        HttpServletRequest req, String mappingType, String siteType, String customerId, HttpServletResponse response) throws Exception {
    Map<String, Object> map = new HashMap<String, Object>();
    String errorMsg = "ok";
    List<com.winner.model.ExcelErrorVo> errors = new ArrayList<com.winner.model.ExcelErrorVo>();

    // 上传文件 获得文件名(全路径)
    String fileName = file.getOriginalFilename();
    if (file.isEmpty()) {
        map.put("errorMsg", "emptyFile");
        JSONObject jo = JSONObject.fromObject(map);
        response.setContentType("text/html");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write(jo.toString());
        return;
    }
    String path = req.getSession().getServletContext().getRealPath("upload");
    File targetFile = new File(path, fileName);
    if (!targetFile.exists()) {
        targetFile.mkdirs();
    }
    try {
        file.transferTo(targetFile);
    } catch (Exception e) {
        e.printStackTrace();
    }
    String filePath = path + File.separator + fileName;
    ArrayList<HashMap<String, Object>> list = new ArrayList<>();
    // 07+版本excel上传
    if (filePath.indexOf(".xlsx") != -1) {
        InputStream is = new FileInputStream(filePath);
        XSSFWorkbook workbook = new XSSFWorkbook(is);
        int sheetNum = workbook.getNumberOfSheets();
        for (int i = 0; i < sheetNum; i++) {//外循环遍历sheet页
            XSSFSheet sheet = workbook.getSheetAt(i);
            for (int rowNum = 1; rowNum < sheet.getLastRowNum() + 1; rowNum++) {
                XSSFRow row = sheet.getRow(rowNum);
                HashMap<String, Object> hashMap = new HashMap<>();
                hashMap.put("innerName", row.getCell(0).toString());//mappingType为2
                hashMap.put("innerId", AesUtil.decrypt(row.getCell(1).toString(), customerId));
                String outName = row.getCell(2).toString();
                String outId = row.getCell(3).toString();
                int dotNum = outName.indexOf(".");//确保为整型
                if(dotNum>-1){
                    outName = outName.substring(0,dotNum);
                }
                dotNum = outId.indexOf(".");//确保为整型
                if(dotNum>-1){
                    outId = outId.substring(0,dotNum);
                }
                hashMap.put("outName", outName);
                hashMap.put("outId", outId);
                hashMap.put("mappingType", mappingType);
                hashMap.put("siteType", siteType);
                list.add(hashMap);
            }
        }
    }else if(filePath.indexOf(".xls")!=-1) {
        InputStream is = new FileInputStream(filePath);
        HSSFWorkbook workbook = new HSSFWorkbook(is);//new的对象不一样一个是HSSFWorkbook HSSFSheet HSSFRow   07是一个是XSSFWorkbook XSSFSheet XSSFRow
        int sheetNum = workbook.getNumberOfSheets();
        for (int i = 0; i < sheetNum; i++) {
            HSSFSheet sheet = workbook.getSheetAt(i);
            String sheetName = workbook.getSheetName(i);
            if (!"readme_cn".equals(sheetName)) {
                for (int rowNum = 1; rowNum < sheet.getLastRowNum() + 1; rowNum++) {
                    HashMap<String, Object> hashMap = new HashMap<>();
                    HSSFRow row = sheet.getRow(rowNum);
                    hashMap.put("innerName", row.getCell(0).toString());//mappingType为2
                    hashMap.put("innerId", AesUtil.decrypt(row.getCell(1).toString(), customerId));
                    String outName = row.getCell(2).toString();
                    String outId = row.getCell(3).toString();
                    int dotNum = outName.indexOf(".");//确保为整型
                    if(dotNum>-1){
                        outName = outName.substring(0,dotNum);
                    }
                    dotNum = outId.indexOf(".");//确保为整型
                    if(dotNum>-1){
                        outId = outId.substring(0,dotNum);
                    }
                    hashMap.put("outName", outName);
                    hashMap.put("outId", outId);
                    hashMap.put("mappingType", mappingType);
                    hashMap.put("siteType", siteType);
                    list.add(hashMap);
                }
            }
        }
        String url = "huike_importMapping";
        JSONObject jsonParam = new JSONObject();
        jsonParam.put("list", JSON.toJSONString(list));
        jsonParam.put("mappingType", mappingType);
        jsonParam.put("siteType", siteType);
        jsonParam.put("customerId", customerId);
        JSONObject result = HttpClient.httpJsonPost(MessageManager.getMsg("apiAddress") + url, jsonParam, false);
        String statu = result.get("respCode").toString();
        targetFile.delete();
        if (statu != null && "90001".equals(statu)) {
            map.put("errorMsg", "ok");
            map.put("count", list.size());
        } else {
            map.put("errorMsg", "error");
        }
        JSONObject jo = JSONObject.fromObject(map);
        response.setContentType("text/html");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write(jo.toString());
        return;

    }
}