学习笔记-minio

minio

• 分布式文件存储系统
• 概念
  • Bucket
    • 桶
  • Object
    • 存储文件
  • Drive
    • 磁盘
  • Set
    • Drive集合
• 纠删码（EC）
  • Erasure Code
  • 保证高可靠性
• 安装
  • docker
  • docker compose
• 部署
  • 纠删码模式部署
  • 分布式集群部署
• 客户端mc操作
  • mc config host ls
    • 查看minio服务器名称与地址
  • mc config host add xxx http://xxx.xx.xx.xx:port username password
    • 添加minio服务器到列表
  • mc config host remove xxx
    • 删除列表中对应的minio服务器
  • mc ls 服务器名称
    • 查看minio服务文件列表
  • mc cp minio服务器名/文件路径/文件名 D:\xx\xx
    • 下载文件
  • mc cp D:\xx\xx minio服务器名/桶
    • 上传文件
  • mc rm minio服务器名/文件路径/文件名
    • 删除文件
  • mc mb minio服务器名/桶名
    • 创建bucket
  • mc rm --force minio服务器名/桶名
    • 强制删除bucket（bucket不为空需要强制删除）
  • mc du minio服务器(/路径)
    • 磁盘使用情况
  • mc admin user list minio服务器
    • 查看用户信息
  • mc admin user add minio服务器 newUser
    • 添加新用户
  • mc policy list 服务器
    • 查看策略列表
  • mc admin policy info 服务器 策略名
    • 查看策略详情
  • mc admin policy add 服务器 策略名 策略文件地址
    • 添加策略
  • mc admin policy set 用户 策略名
    • 为用户设置策略

java整合

• 依赖

<dependency>
    <groupId>io.minio</groupId>
    <artifactId>minio</artifactId>
    <version>8.3.0</version>
</dependency>
<dependency>
    <groupId>me.tongfei</groupId>
    <artifactId>progressbar</artifactId>
    <version>0.5.3</version>
</dependency>
<dependency>
    <groupId>com.squareup.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>4.8.1</version>
</dependency>

 // 连接minio
 MinioClient minioClient =
     MinioClient.builder()
         .endpoint("https://play.min.io")
         .credentials("Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG")
         .build();
// 创建bucket
String bucketName = "xxx";
boolean found = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
if(!found){
    
    // 不存在
    minioClient.makeBucket(MakeBuketArgs.builder().bucket(bucketName).build());
}
// 上传文件
minioClient.uploadObject(
    UploadObjectArgs.builder()
        .bucket(bucketName)
        .object("xxx")      // 上传文件路径
        .filename("xxx")    // 本地磁盘路径
        .build());

// 下载
minioClient.downLoadObject(
    DownLoadObjectArgs.builder()
        .bucket(bucketName)
        .object("xxx")      // 上传文件路径
        .filename("xxx")    // 本地磁盘路径
        .build());

springboot整合

minio:
  endpoint:xxx
  accesskey:xxx
  secretKey:xxx
  bucketName:xxx

@Data
@Component
@ConfigurationProperties(prefix="minio")
public class MinioProperties{
    
    private String endpoint;
    private String accesskey;
    private String secretkey;
    
}

@Configuration
public class MinioConfig{
    
    @Autowired
    private MinioProperties minioProperties;
    
    @Bean
    public MinioClient minioClient(){
    
         MinioClient minioClient = 
            MinioClient.builder()
                .endpoint(minioProperties.getEndPoint())
                .credentials(minioProperties.getAccessKey(), minioProperties.getSecretKey())
                .build();
        return minioClient;
    }
    
}

@Component
public class MinioUtil {
    

	@Autowired
	private MinioClient minioClient;

	/** * 文件上传 */
	public Boolean upload(MultipartFile file, String filePath, String tempFileName, String bucketName) {
    
		try {
    
			if (!bucketExists(bucketName)) {
    
				makeBucket(bucketName);
			}
			PutObjectArgs objectArgs = PutObjectArgs.builder().bucket(bucketName)
				.object(filePath + tempFileName)
				.stream(file.getInputStream(), file.getSize(), -1)
				.contentType(file.getContentType()).build();
			//文件名称相同会覆盖
			ObjectWriteResponse response = minioClient.putObject(objectArgs);
			return true;
		} catch (Exception e) {
    
			e.printStackTrace();
			return false;
		}

	}

	/** * 预览文件 */
	public void preview(String bucketName, String fileUrl, String openStyle, String fileName, HttpServletResponse res) {
    
		GetObjectArgs objectArgs = GetObjectArgs.builder().bucket(bucketName)
			.object(fileUrl + fileName).build();
		try (GetObjectResponse response = minioClient.getObject(objectArgs)) {
    
			byte[] buf = new byte[1024];
			int len;
			try (FastByteArrayOutputStream os = new FastByteArrayOutputStream()) {
    
				while ((len = response.read(buf)) != -1) {
    
					os.write(buf, 0, len);
				}
				os.flush();
				String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
				byte[] bytes = os.toByteArray();
				res.setCharacterEncoding("utf-8");
				String src = "application/" + suffix;
				res.setContentType(src);
				res.addHeader("Content-Disposition", openStyle + ";fileName=" + fileName);
				try (ServletOutputStream stream = res.getOutputStream()) {
    
					stream.write(bytes);
					stream.flush();
				}
			}
		} catch (Exception e) {
    
			e.printStackTrace();
		}
	}

	/** * 查看存储bucket是否存在 */
	public Boolean bucketExists(String bucketName) {
    
		Boolean found;
		try {
    
			found = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
		} catch (Exception e) {
    
			e.printStackTrace();
			return false;
		}
		return found;
	}

	/** * 创建存储bucket */
	public Boolean makeBucket(String bucketName) {
    
		try {
    
			minioClient.makeBucket(MakeBucketArgs.builder()
				.bucket(bucketName)
				.build());
		} catch (Exception e) {
    
			e.printStackTrace();
			return false;
		}
		return true;
	}

	/** * 删除存储bucket */
	public Boolean removeBucket(String bucketName) {
    
		try {
    
			minioClient.removeBucket(RemoveBucketArgs.builder()
				.bucket(bucketName)
				.build());
		} catch (Exception e) {
    
			e.printStackTrace();
			return false;
		}
		return true;
	}


	/** * 文件下载 */
	public void download(String bucketName, String fileUrl, String fileName, HttpServletResponse res) {
    
		GetObjectArgs objectArgs = GetObjectArgs.builder().bucket(bucketName)
			.object(fileUrl + fileName).build();
		try (GetObjectResponse response = minioClient.getObject(objectArgs)) {
    
			byte[] buf = new byte[1024];
			int len;
			try (FastByteArrayOutputStream os = new FastByteArrayOutputStream()) {
    
				while ((len = response.read(buf)) != -1) {
    
					os.write(buf, 0, len);
				}
				os.flush();
				byte[] bytes = os.toByteArray();
				res.setCharacterEncoding("utf-8");
				//设置强制下载不打开
				res.setContentType("application/force-download");
				res.addHeader("Content-Disposition", "attachment;fileName=" + fileName);
				try (ServletOutputStream stream = res.getOutputStream()) {
    
					stream.write(bytes);
					stream.flush();
				}
			}
		} catch (Exception e) {
    
			e.printStackTrace();
		}
	}


	/** * 批量删除文件对象 */
	public Iterable<Result<DeleteError>> removeObjects(String bucketName, List<String> objects) {
    
		List<DeleteObject> dos = objects.stream().map(e -> new DeleteObject(e)).collect(Collectors.toList());
		Iterable<Result<DeleteError>> results = minioClient.removeObjects(RemoveObjectsArgs.builder().bucket(bucketName).objects(dos).build());
		return results;
	}

	//文件删除
	@DeleteMapping
	public boolean delete(String objectName, String bucketName) {
    
		try {
    
			RemoveObjectArgs objectArgs = RemoveObjectArgs.builder().object(objectName).bucket(bucketName).build();
			minioClient.removeObject(objectArgs);
			return true;
		} catch (Exception e) {
    
			return false;
		}
	}

	/** * 上传文件 */
	public boolean putObject(String bucketName, String objectName, InputStream stream) throws Exception {
    
		try {
    
			PutObjectArgs objectArgs = PutObjectArgs.builder().bucket(bucketName)
				.object(objectName).contentType("application/octet-stream").stream(stream, stream.available(), -1).build();
			minioClient.putObject(objectArgs);
			return true;
		} catch (Exception e) {
    
			return false;
		}


	}


}