使用了hutool工具类,Result是返回值的统一封装

 @RequiresAuthentication
    @GetMapping("/createdImage")
    public Result createdImage() throws FileNotFoundException {
        File[] files = FileUtil.ls(
                "D:\\myporject\\springboot-vant\\src\\main\\resources\\static\\LoginImage");
        List list = new ArrayList();
        for (File file : files) {
            byte[] fileByte = IoUtil.readBytes(new FileInputStream(file));
            String encode = "data:image/png;base64," + Base64Encoder.encode(fileByte);
            list.add(encode);
        }
        return Result.succ(list);
    }

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