jar包发布读取资源文件

 private void initProvinceCodeToRedis() {
        try {
            InputStream input = getClass().getClassLoader().getResourceAsStream("xlsx/provincial_code.xlsx");
            String fileName = "code.xlsx";
            File file = new File(fileName);
            OutputStream os = new FileOutputStream(file);
            int bytesRead;
            byte[] buffer = new byte[1024];
            while ((bytesRead = input.read(buffer, 0, 1024)) != -1) {
                os.write(buffer, 0, bytesRead);
            }
            os.close();
            input.close();
            List<String[]> strings = ImportExcelUtil.readExcel(file);
            Pipeline pipeline = HashRedisUtils.getInstance().getPipeline();
            StringBuilder key = new StringBuilder();
            for (String[] string : strings) {
                key.append(string[1]).append(string[3]);
                pipeline.set(key.toString(), string[0]);
                key.setLength(0);
            }
            pipeline.sync();
            FileUtils.delete(fileName);
            log.info("初始化省市区编码成功");
        } catch (Exception e) {
            log.error("初始化省市区编码失败" + e);
        }
    }