SpringBoot三十六:整合MinIo文件服务

什么是MinIo

Minio是Apcche旗下的一款开源的轻量级文件服务器,基于对象存储,协议是基于Apache License v2.0,开源可用于商务。

Minio主要用来存储非结构化的数据,类似文件,图片,照片,日志文件,各类备份文件等,按照官网描述,文件的大小从几KB到5TB。

Minio提供了非常方便,友好的界面,并且文档也是非常丰富,具体可以参考它的文档:https://docs.min.io/cn/

为什么选择MinIo

在之前开发中曾使用了分布式文件服务FASTDFS和阿里云的OSS对象存储来存储。奈何OSS太贵,FASTDFS搭建配置又太繁琐,今天给大家推荐一款极易上手的高性能对象存储服务MinIo。

MinIO 是高性能的对象存储,兼容 Amazon S3接口,充分考虑开发人员的需求和体验;支持分布式存储,具备高扩展性、高可用性;部署简单但功能丰富。官方的文档也很详细。它有多种不同的部署模式(单机部署,分布式部署)。

为什么说 MinIO 简单易用,原因就在于它的启动、运行和配置都很简单。可以通过 docker 方式进行安装运行,也可以下载二进制文件,然后使用脚本运行。

安装MinIo

推荐使用 docker 一键安装:

docker run -it -p 9000:9000 --name minio \
-d --restart=always \
-e "MINIO_ACCESS_KEY=admin" \
-e "MINIO_SECRET_KEY=admin123456" \
-v /mnt/minio/data:/data \
-v /mnt/minio/config:/root/.minio \
minio/minio server /data

注意:

  • 密钥必须大于8位,否则会创建失败
  • 文件目录和配置文件一定要映射到主机,你懂得

整合Nginx

server{
    listen 80;
    server_name minio.javakf.com.cn;
    location /{
        proxy_set_header Host $http_host;
        proxy_pass http://localhost:9000;
    }
    location ~ /\.ht {
        deny  all;
    }
}

这样,通过浏览器访问配置的地址,使用指定的 MINIO_ACCESS_KEY 及 MINIO_SECRET_KEY 登录即可。

简单看了一下,功能还算可以,支持创建Bucket,文件上传、删除、分享、下载,同时可以对Bucket设置读写权限。

整合SpringBoot

Minio支持接入JavaScript、Java、Python、Golang等多种语言,这里我们选择最熟悉的Java语言,使用最流行的框架 SpringBoot。

pom.xml


	io.minio</groupId>
	minio</artifactId>
	7.0.2</version>
</dependency>

	org.projectlombok</groupId>
	lombok</artifactId>
</dependency>

application.yml

#minio配置
minio:
  endpoint: http://192.168.179.131:9000/
  accessKey: admin
  secretKey: admin123456

Minio客户端配置类,并注入到Spring中

@Data
@Configuration
@ConfigurationProperties(prefix = "minio")
public class MinioConfig {

	private String endpoint;
	private String accessKey;
	private String secretKey;

	@Bean
	public MinioClient getMinioClient() throws InvalidEndpointException, InvalidPortException {
		MinioClient minioClient = new MinioClient(endpoint, accessKey, secretKey);
		return minioClient;
	}

}

工具类

@Component
public class MinioUtil {

	@Autowired
	private MinioClient minioClient;

	private static final int DEFAULT_EXPIRY_TIME = 7 * 24 * 3600;

	/**
	 * 检查存储桶是否存在
	 * 
	 * @param bucketName 存储桶名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public boolean bucketExists(String bucketName) throws InvalidKeyException, ErrorResponseException,
			IllegalArgumentException, InsufficientDataException, InternalException, InvalidBucketNameException,
			InvalidResponseException, NoSuchAlgorithmException, XmlParserException, IOException {
		boolean flag = minioClient.bucketExists(bucketName);
		if (flag) {
			return true;
		}
		return false;
	}

	/**
	 * 创建存储桶
	 * 
	 * @param bucketName 存储桶名称
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 * @throws RegionConflictException
	 */
	public boolean makeBucket(String bucketName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException, RegionConflictException {
		boolean flag = bucketExists(bucketName);
		if (!flag) {
			minioClient.makeBucket(bucketName);
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 列出所有存储桶名称
	 * 
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public List<String> listBucketNames() throws InvalidKeyException, ErrorResponseException, IllegalArgumentException,
			InsufficientDataException, InternalException, InvalidBucketNameException, InvalidResponseException,
			NoSuchAlgorithmException, XmlParserException, IOException {
		List<Bucket> bucketList = listBuckets();
		List<String> bucketListName = new ArrayList<>();
		for (Bucket bucket : bucketList) {
			bucketListName.add(bucket.name());
		}
		return bucketListName;
	}

	/**
	 * 列出所有存储桶
	 * 
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public List<Bucket> listBuckets() throws InvalidKeyException, ErrorResponseException, IllegalArgumentException,
			InsufficientDataException, InternalException, InvalidBucketNameException, InvalidResponseException,
			NoSuchAlgorithmException, XmlParserException, IOException {
		return minioClient.listBuckets();
	}

	/**
	 * 删除存储桶
	 * 
	 * @param bucketName 存储桶名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public boolean removeBucket(String bucketName) throws InvalidKeyException, ErrorResponseException,
			IllegalArgumentException, InsufficientDataException, InternalException, InvalidBucketNameException,
			InvalidResponseException, NoSuchAlgorithmException, XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			Iterable<Result<Item>> myObjects = listObjects(bucketName);
			for (Result<Item> result : myObjects) {
				Item item = result.get();
				// 有对象文件,则删除失败
				if (item.size() > 0) {
					return false;
				}
			}
			// 删除存储桶,注意,只有存储桶为空时才能删除成功。
			minioClient.removeBucket(bucketName);
			flag = bucketExists(bucketName);
			if (!flag) {
				return true;
			}

		}
		return false;
	}

	/**
	 * 列出存储桶中的所有对象名称
	 * 
	 * @param bucketName 存储桶名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public List<String> listObjectNames(String bucketName) throws InvalidKeyException, ErrorResponseException,
			IllegalArgumentException, InsufficientDataException, InternalException, InvalidBucketNameException,
			InvalidResponseException, NoSuchAlgorithmException, XmlParserException, IOException {
		List<String> listObjectNames = new ArrayList<>();
		boolean flag = bucketExists(bucketName);
		if (flag) {
			Iterable<Result<Item>> myObjects = listObjects(bucketName);
			for (Result<Item> result : myObjects) {
				Item item = result.get();
				listObjectNames.add(item.objectName());
			}
		}
		return listObjectNames;
	}

	/**
	 * 列出存储桶中的所有对象
	 * 
	 * @param bucketName 存储桶名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public Iterable<Result<Item>> listObjects(String bucketName) throws InvalidKeyException, ErrorResponseException,
			IllegalArgumentException, InsufficientDataException, InternalException, InvalidBucketNameException,
			InvalidResponseException, NoSuchAlgorithmException, XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			return minioClient.listObjects(bucketName);
		}
		return null;
	}

	/**
	 * 通过文件上传到对象
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param fileName   File name
	 * @return
	 * @throws InvalidKeyException
	 * @throws ErrorResponseException
	 * @throws IllegalArgumentException
	 * @throws InsufficientDataException
	 * @throws InternalException
	 * @throws InvalidBucketNameException
	 * @throws InvalidResponseException
	 * @throws NoSuchAlgorithmException
	 * @throws XmlParserException
	 * @throws IOException
	 */
	public boolean putObject(String bucketName, String objectName, String fileName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			minioClient.putObject(bucketName, objectName, fileName, null);
			ObjectStat statObject = statObject(bucketName, objectName);
			if (statObject != null && statObject.length() > 0) {
				return true;
			}
		}
		return false;

	}

	/**
	 * 通过InputStream上传对象
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param stream     要上传的流
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public boolean putObject(String bucketName, String objectName, InputStream stream)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			minioClient.putObject(bucketName, objectName, stream, new PutObjectOptions(stream.available(), -1));
			ObjectStat statObject = statObject(bucketName, objectName);
			if (statObject != null && statObject.length() > 0) {
				return true;
			}
		}
		return false;
	}

	/**
	 * 以流的形式获取一个文件对象
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public InputStream getObject(String bucketName, String objectName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			ObjectStat statObject = statObject(bucketName, objectName);
			if (statObject != null && statObject.length() > 0) {
				InputStream stream = minioClient.getObject(bucketName, objectName);
				return stream;
			}
		}
		return null;
	}

	/**
	 * 以流的形式获取一个文件对象(断点下载)
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param offset     起始字节的位置
	 * @param length     要读取的长度 (可选,如果无值则代表读到文件结尾)
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public InputStream getObject(String bucketName, String objectName, long offset, Long length)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			ObjectStat statObject = statObject(bucketName, objectName);
			if (statObject != null && statObject.length() > 0) {
				InputStream stream = minioClient.getObject(bucketName, objectName, offset, length);
				return stream;
			}
		}
		return null;
	}

	/**
	 * 下载并将文件保存到本地
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param fileName   File name
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public boolean getObject(String bucketName, String objectName, String fileName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			ObjectStat statObject = statObject(bucketName, objectName);
			if (statObject != null && statObject.length() > 0) {
				minioClient.getObject(bucketName, objectName, fileName);
				return true;
			}
		}
		return false;
	}

	/**
	 * 删除一个对象
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public boolean removeObject(String bucketName, String objectName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			minioClient.removeObject(bucketName, objectName);
			return true;
		}
		return false;

	}

	/**
	 * 删除指定桶的多个文件对象,返回删除错误的对象列表,全部删除成功,返回空列表
	 * 
	 * @param bucketName  存储桶名称
	 * @param objectNames 含有要删除的多个object名称的迭代器对象
	 * @return
	 * @throws InvalidKeyException
	 * @throws ErrorResponseException
	 * @throws IllegalArgumentException
	 * @throws InsufficientDataException
	 * @throws InternalException
	 * @throws InvalidBucketNameException
	 * @throws InvalidResponseException
	 * @throws NoSuchAlgorithmException
	 * @throws XmlParserException
	 * @throws IOException
	 */
	public List<String> removeObject(String bucketName, List<String> objectNames)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		List<String> deleteErrorNames = new ArrayList<>();
		boolean flag = bucketExists(bucketName);
		if (flag) {
			Iterable<Result<DeleteError>> results = minioClient.removeObjects(bucketName, objectNames);
			for (Result<DeleteError> result : results) {
				DeleteError error = result.get();
				deleteErrorNames.add(error.objectName());
			}
		}
		return deleteErrorNames;
	}

	/**
	 * 生成一个给HTTP GET请求用的presigned URL。
	 * 浏览器/移动端的客户端可以用这个URL进行下载,即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间,默认值是7天。
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param expires    失效时间(以秒为单位),默认是7天,不得大于七天
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 * @throws InvalidExpiresRangeException
	 */
	public String presignedGetObject(String bucketName, String objectName, Integer expires)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException, InvalidExpiresRangeException {
		boolean flag = bucketExists(bucketName);
		String url = "";
		if (flag) {
			if (expires < 1 || expires > DEFAULT_EXPIRY_TIME) {
				throw new InvalidExpiresRangeException(expires,
						"expires must be in range of 1 to " + DEFAULT_EXPIRY_TIME);
			}
			url = minioClient.presignedGetObject(bucketName, objectName, expires);
		}
		return url;
	}

	/**
	 * 生成一个给HTTP PUT请求用的presigned URL。
	 * 浏览器/移动端的客户端可以用这个URL进行上传,即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间,默认值是7天。
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @param expires    失效时间(以秒为单位),默认是7天,不得大于七天
	 * @return
	 * @throws InvalidKeyException
	 * @throws ErrorResponseException
	 * @throws IllegalArgumentException
	 * @throws InsufficientDataException
	 * @throws InternalException
	 * @throws InvalidBucketNameException
	 * @throws InvalidResponseException
	 * @throws NoSuchAlgorithmException
	 * @throws XmlParserException
	 * @throws IOException
	 * @throws InvalidExpiresRangeException
	 */
	public String presignedPutObject(String bucketName, String objectName, Integer expires)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException, InvalidExpiresRangeException {
		boolean flag = bucketExists(bucketName);
		String url = "";
		if (flag) {
			if (expires < 1 || expires > DEFAULT_EXPIRY_TIME) {
				throw new InvalidExpiresRangeException(expires,
						"expires must be in range of 1 to " + DEFAULT_EXPIRY_TIME);
			}
			url = minioClient.presignedPutObject(bucketName, objectName, expires);
		}
		return url;
	}

	/**
	 * 获取对象的元数据
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public ObjectStat statObject(String bucketName, String objectName)
			throws InvalidKeyException, ErrorResponseException, IllegalArgumentException, InsufficientDataException,
			InternalException, InvalidBucketNameException, InvalidResponseException, NoSuchAlgorithmException,
			XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		if (flag) {
			ObjectStat statObject = minioClient.statObject(bucketName, objectName);
			return statObject;
		}
		return null;
	}

	/**
	 * 文件访问路径
	 * 
	 * @param bucketName 存储桶名称
	 * @param objectName 存储桶里的对象名称
	 * @return
	 * @throws IOException
	 * @throws XmlParserException
	 * @throws NoSuchAlgorithmException
	 * @throws InvalidResponseException
	 * @throws InvalidBucketNameException
	 * @throws InternalException
	 * @throws InsufficientDataException
	 * @throws IllegalArgumentException
	 * @throws ErrorResponseException
	 * @throws InvalidKeyException
	 */
	public String getObjectUrl(String bucketName, String objectName) throws InvalidKeyException, ErrorResponseException,
			IllegalArgumentException, InsufficientDataException, InternalException, InvalidBucketNameException,
			InvalidResponseException, NoSuchAlgorithmException, XmlParserException, IOException {
		boolean flag = bucketExists(bucketName);
		String url = "";
		if (flag) {
			url = minioClient.getObjectUrl(bucketName, objectName);
		}
		return url;
	}

}

目前SDK不支持文件夹的创建,如果想创建文件夹,只能通过文件的方式上传并创建。

minIoUtils.putObject("javakf","test/1.jpg","C:\\1.jpg");

一个实例只能有一个账号,如果想使用多个账号,需要创建多个实例。此外 minio还支持单主机,多块磁盘以及分布式部署,不过对于大部分单体应用来说,单体已经够用了。

上传文件

@RestController
public class MinioController {

	@Autowired
	private MinioUtil minioUtil;

	@PostMapping("/upload")
	public String MinIOUpload(MultipartFile file) {
		if (file.isEmpty() || file.getSize() == 0) {
			return "文件为空";
		}
		try {
			if (!minioUtil.bucketExists("javakf")) {
				minioUtil.makeBucket("javakf");
			}

			String fileName = file.getOriginalFilename();
			String newName = "image/" + UUID.randomUUID().toString().replaceAll("-", "")
					+ fileName.substring(fileName.lastIndexOf("."));

			InputStream inputStream = file.getInputStream();
			minioUtil.putObject("javakf", newName, inputStream);
			inputStream.close();

			String url = minioUtil.getObjectUrl("javakf", newName);
			return url;
		} catch (Exception e) {
			e.printStackTrace();
			return "上传失败";
		}
	}

}

postman测试

SpringBoot三十六:整合MinIo文件服务_第1张图片

访问配置

MinIO形式上传的文件也不能直接访问,需要设置bucket的policy策略
SpringBoot三十六:整合MinIo文件服务_第2张图片
SpringBoot三十六:整合MinIo文件服务_第3张图片
SpringBoot三十六:整合MinIo文件服务_第4张图片
3.0.10版本: minioClient.setBucketPolicy("javakf", "image", PolicyType.READ_ONLY);

参数 类型 描述
bucketName String 存储桶名称
objectPrefix String 对象前缀
policy PolicyType 要赋予的策略,可选值有[PolicyType.NONE, PolicyType.READ_ONLY, PolicyType.READ_WRITE, PolicyType.WRITE_ONLY]

代码托管:springboot_minio

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