base64转文件与图片上传minio

public boolean photoSave(CarIdentifyData carIdentifyData){
    List<String> strings = new ArrayList<>();
    strings.add(carIdentifyData.getCarPhoto());
    strings.add(carIdentifyData.getCarNumberPhoto());
    // base64转文件
    MultipartFile[] Files =base64ToMultipartUtils.base64ToMultipartFile(strings);
    // 车辆图片和车牌图片上传minio
    List<String> urlList = base64ToMultipartUtils.upload(Files);
    if (ObjectUtils.isNotEmpty(urlList)) {
        carIdentifyData.setCarPhoto(urlList.get(0));
        carIdentifyData.setCarNumberPhoto(urlList.get(1));

        super.save(carIdentifyData);
        return true;
    }else {
        return false;
    }
}


base64转文件：

public MultipartFile[] base64ToMultipartFile(List<String> listBase64){
    MultipartFile[] files = new MultipartFile[2];
    try {
        for (int i = 0; i < listBase64.size(); i++) {
            Base64.Decoder decoder = Base64.getMimeDecoder();
            // 去掉base64前缀 data:image/jpeg;base64,
            byte[] b = decoder.decode(listBase64.get(i));
            // 处理数据
            for (int j = 0; j < b.length; ++j) {
                if (b[j] < 0) {
                    b[j] += 256;
                }
            }
            InputStream inputStream = new ByteArrayInputStream(b);
            String string = UUID.randomUUID().toString().concat(".png");
            MultipartFile file = new MockMultipartFile(string,string,ContentType.IMAGE_PNG.toString(), inputStream);
            if(ObjectUtils.isNotEmpty(file)){
                files[i] = file;
            }
            inputStream.close();
        }
        return files;
    } catch (Exception e) {
        log.info("base64ToMultipartFile - {}", e.getStackTrace());
        return files;
    }
}

图片上传minio：

public List<String> upload(MultipartFile[] file) {
    List<String> objectNameList = minioUtil.upload(file);
    List<String> urlList = new ArrayList<>();
    if (null != objectNameList && objectNameList.size() >0) {
        for (String objectName : objectNameList) {
            urlList.add(minioPath + objectName);
        }
        return urlList;
    }
    return new ArrayList<>();
}

minio多文件上传工具类：

public List<String> upload(MultipartFile[] files) {
    List<String> objectNameList = new ArrayList<>();
    for (MultipartFile file : files){
        String originalFilename = file.getOriginalFilename();
        if (StringUtils.isBlank(originalFilename)){
            throw new RuntimeException();
        }
        String fileName = UuidUtils.generateUuid() + originalFilename.substring(originalFilename.lastIndexOf("."));
        String objectName = fileName;
        try {
            PutObjectArgs objectArgs = PutObjectArgs.builder().bucket(prop.getBucketName()).object(objectName)
                    .stream(file.getInputStream(), file.getSize(), -1).contentType(file.getContentType()).build();
            //文件名称相同会覆盖
            minioClient.putObject(objectArgs);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        objectNameList.add(objectName);
    }
    return objectNameList;
}