class SysFileServiceImpl extends ServiceImpl<SysFileMapper, SysFile> implements SysFileService {

	private final FileTemplate fileTemplate;

	private final FileProperties properties;

	/**
	 * 上传文件
	 * @param file
	 * @return
	 */
	@Override
	public R uploadFile(MultipartFile file) {
		String fileName = IdUtil.simpleUUID() + StrUtil.DOT + FileUtil.extName(file.getOriginalFilename());
		Map<String, String> resultMap = new HashMap<>(4);
		resultMap.put("bucketName", properties.getBucketName());
		resultMap.put("fileName", fileName);
		resultMap.put("url", String.format("/admin/sys-file/%s/%s", properties.getBucketName(), fileName));

		try (InputStream inputStream = file.getInputStream()) {
			fileTemplate.putObject(properties.getBucketName(), fileName, inputStream, file.getContentType());
			// 文件管理数据记录,收集管理追踪文件
			fileLog(file, fileName);
		}
		catch (Exception e) {
			log.error("上传失败", e);
			return R.failed(e.getLocalizedMessage());
		}
		return R.ok(resultMap);
	}

	/**
	 * 读取文件
	 * @param bucket
	 * @param fileName
	 * @param response
	 */
	@Override
	public void getFile(String bucket, String fileName, HttpServletResponse response) {<FILL_FUNCTION_BODY>}

	/**
	 * 删除文件
	 * @param id
	 * @return
	 */
	@Override
	@SneakyThrows
	@Transactional(rollbackFor = Exception.class)
	public Boolean deleteFile(Long id) {
		SysFile file = this.getById(id);
		if (Objects.isNull(file)) {
			return Boolean.FALSE;
		}
		fileTemplate.removeObject(properties.getBucketName(), file.getFileName());
		return this.removeById(id);
	}

	/**
	 * 文件管理数据记录,收集管理追踪文件
	 * @param file 上传文件格式
	 * @param fileName 文件名
	 */
	private void fileLog(MultipartFile file, String fileName) {
		SysFile sysFile = new SysFile();
		sysFile.setFileName(fileName);
		sysFile.setOriginal(file.getOriginalFilename());
		sysFile.setFileSize(file.getSize());
		sysFile.setType(FileUtil.extName(file.getOriginalFilename()));
		sysFile.setBucketName(properties.getBucketName());
		this.save(sysFile);
	}

}

		try (S3Object s3Object = fileTemplate.getObject(bucket, fileName)) {
			response.setContentType("application/octet-stream; charset=UTF-8");
			IoUtil.copy(s3Object.getObjectContent(), response.getOutputStream());
		}
		catch (Exception e) {
			log.error("文件读取异常: {}", e.getLocalizedMessage());
		}
	
<no_super_class>