1 Minio介绍

MinIO 是一个基于 Apache License v2.0 开源协议的对象存储服务。它兼容亚马逊 S3 云存储服务接口，非常适合于存储大容量非结构化的数据，例如图片、视频、日志文件、备份数据和容器/虚拟机镜像等，而一个对象文件可以是任意大小，从几 kb 到最大 5T 不等。以下是 MinIO 的一些主要特点和优势：

1. 兼容性: MinIO 使用标准的 Amazon S3 API，这意味着它与现有的 S3 应用程序和工具兼容，可以无缝替换 Amazon S3。

2. 高性能: MinIO 借助于其分布式架构和优化的存储引擎，在处理大规模数据时表现出色。它可以水平扩展以满足各种工作负载需求。

3. 轻量级: MinIO 的设计注重简单性和效率，因此它是一个轻量级的服务。这使得它易于部署、管理和维护。

4. 高可用性: MinIO 支持数据的多副本复制和故障转移，确保数据的可靠性和高可用性。它可以在节点故障时自动进行数据修复和重平衡。

5. 安全性: MinIO 提供多种安全功能，包括加密传输、访问控制列表 (ACLs)、策略管理和身份验证机制，以确保数据的保密性和完整性。

6. 灵活性: MinIO 可以在各种环境中部署，包括本地数据中心、云环境和容器化环境。它支持多种存储后端，包括本地磁盘、分布式文件系统和对象存储。

2 Minio环境搭建

2.1 docker环境下

采用docker-compose搭建：

# 可参考 https://docs.min.io/docs/minio-docker-quickstart-guide.html
version: '3'
services:
  minio:
    image: minio/minio:latest                                    # 原镜像`minio/minio:latest`
    container_name: minio                                        # 容器名为'minio'
    restart: unless-stopped                                              # 指定容器退出后的重启策略为始终重启，但是不考虑在Docker守护进程启动时就已经停止了的容器
    volumes:                                                     # 数据卷挂载路径设置,将本机目录映射到容器目录
      - "./minio/data:/data"
      - "./minio/minio:/minio"
      - "./minio/config:/root/.minio"
    environment:                                      # 设置环境变量,相当于docker run命令中的-e
      TZ: Asia/Shanghai
      LANG: en_US.UTF-8
      MINIO_PROMETHEUS_AUTH_TYPE: "public"
      MINIO_ACCESS_KEY: "root"                        # 登录账号
      MINIO_SECRET_KEY: "password"                    # 登录密码
    command: server /data  --console-address ":9001"
    logging:
      driver: "json-file"
      options:
        max-size: "100m"
    ports:                              # 映射端口
      - "9000:9000" # 文件上传&预览端口
      - "9001:9001" # 控制台访问端口

启动服务：

docker-compose -f docker-compose-minio.yml -p minio up -d

启动后：

访问地址：ip地址:9001/minio 登录账号密码：root/password

2.2 Linux环境下(非docker容器下)

下载并授权限：

wget https://dl.min.io/sever/minio/release/linux-amd64/minio
chmod +x minio    //添加执行权限

启动minio服务：

MINIO_ROOT_USER=root MINIO_ROOT_PASSWORD=password ./minio server /data/minio/data --console-address ":9001"

• 用户名为“root”
• 密码为“password”
• 数据存储路径为"/data/minio/data"
• 控制台页面的访问端口为"9091"

2.3 Windows环境下

下载资源：

MinIO | S3 & Kubernetes Native Object Storage for AI

创建文件夹：

下载完成之后再合适的目录下创建三个必要的文件夹 ，分别是bin，data，logs文件夹

安装位置根据自身需求选择就好，我选在D盘的minio文件下

将minio.exe放入到bin中

然后执行命令(账号密码可通过命令行自行配置)：

D:\minio\bin\minio.exe server D:\minio\data --console-address ":9001" --address ":9000"

2.4 运行成功后访问

3 springboot整合代码实现

3.1 写代码前的准备

创建桶：

获取accessKey和secretKey：

3.2 编写代码

application.yaml：

server:
  port: 8088

minio:
  endpoint: http://127.0.0.1:9000 #Minio服务所在地址
  bucketName: miniotest #存储桶名称
  accessKey: JW38e2AR9G5DgvmUCa51 #访问的key
  secretKey: rK5zgSxAyUwqgIfSWmec9osxDPvyN2qoEqX3MxZa #访问的秘钥

pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot-demo</artifactId>
        <groupId>com.wkf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>minio</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>

        <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>8.2.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.11</version>
        </dependency>

    </dependencies>
</project>

MinioConfig.java：

package com.wkf.minio.config;

import io.minio.MinioClient;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

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

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

    @Bean
    public MinioClient minioClient() {
        return MinioClient.builder()
                .endpoint(endpoint)
                .credentials(accessKey, secretKey)
                .build();
    }
}

OSSController.java：

package com.wkf.minio.controller;

import com.wkf.minio.config.MinioConfig;
import com.wkf.minio.util.MinioUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;

@Slf4j
@RestController
@RequestMapping("/oss")
public class OSSController {

    @Autowired
    private MinioUtils minioUtils;
    
    @Autowired
    private MinioConfig minioConfig;
    
    /**
     * file upload
     *
     * @param file
     */
    @PostMapping("/upload")
    public String upload(@RequestParam("file") MultipartFile file) {
        try {
            //file name
            String fileName = file.getOriginalFilename();
            String newFileName = System.currentTimeMillis() + "." + StringUtils.substringAfterLast(fileName, ".");
            //type
            String contentType = file.getContentType();
            minioUtils.uploadFile(minioConfig.getBucketName(), file, newFileName, contentType);
            return "upload success";
        } catch (Exception e) {
            e.printStackTrace();
            log.error("upload fail");
            return "upload fail";
        }
    }

    /**
     * delete
     *
     * @param fileName
     */
    @DeleteMapping("/")
    public void delete(@RequestParam("fileName") String fileName) {
        minioUtils.removeFile(minioConfig.getBucketName(), fileName);
    }

    /**
     * get file info
     *
     * @param fileName
     * @return
     */
    @GetMapping("/info")
    public String getFileStatusInfo(@RequestParam("fileName") String fileName) {
        return minioUtils.getFileStatusInfo(minioConfig.getBucketName(), fileName);
    }

    /**
     * get file url
     *
     * @param fileName
     * @return
     */
    @GetMapping("/url")
    public String getPresignedObjectUrl(@RequestParam("fileName") String fileName) {
        return minioUtils.getPresignedObjectUrl(minioConfig.getBucketName(), fileName);
    }

    /**
     * file download
     *
     * @param fileName
     * @param response
     */
    @GetMapping("/download")
    public void download(@RequestParam("fileName") String fileName, HttpServletResponse response) {
        try {
            InputStream fileInputStream = minioUtils.getObject(minioConfig.getBucketName(), fileName);
            response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
            response.setContentType("application/force-download");
            response.setCharacterEncoding("UTF-8");
            IOUtils.copy(fileInputStream, response.getOutputStream());
        } catch (Exception e) {
            log.error("download fail");
        }
    }

}

MinioUtil.java：

package com.wkf.minio.util;

import io.minio.*;
import io.minio.http.Method;
import io.minio.messages.Bucket;
import io.minio.messages.DeleteObject;
import io.minio.messages.Item;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import sun.misc.BASE64Decoder;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.*;

/**
 * MinIO Utils
 *
 */
@Slf4j
@Component
@RequiredArgsConstructor
public class MinioUtils {

    private final MinioClient minioClient;

    /******************************  Operate Bucket Start  ******************************/

    /**
     *  init Bucket  when start SpringBoot container
     * create bucket if the bucket is not exists
     *
     * @param bucketName
     */
    @SneakyThrows(Exception.class)
    private void createBucket(String bucketName) {
        if (!bucketExists(bucketName)) {
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
        }
    }

    /**
     * verify Bucket is exist?，true：false
     *
     * @param bucketName
     * @return
     */
    @SneakyThrows(Exception.class)
    public boolean bucketExists(String bucketName) {
        return minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
    }

    /**
     * get Bucket strategy
     *
     * @param bucketName
     * @return
     */
    @SneakyThrows(Exception.class)
    public String getBucketPolicy(String bucketName) {
        return minioClient.getBucketPolicy(GetBucketPolicyArgs
                .builder()
                .bucket(bucketName)
                .build());
    }

    /**
     * get all Bucket list
     *
     * @return
     */
    @SneakyThrows(Exception.class)
    public List<Bucket> getAllBuckets() {
        return minioClient.listBuckets();
    }

    /**
     * Get related information based on bucketName
     *
     * @param bucketName
     * @return
     */
    @SneakyThrows(Exception.class)
    public Optional<Bucket> getBucket(String bucketName) {
        return getAllBuckets().stream().filter(b -> b.name().equals(bucketName)).findFirst();
    }

    /**
     * Delete Bucket based on bucketName, true: deletion successful; false: deletion failed, file may no longer exist
     *
     * @param bucketName
     * @throws Exception
     */
    @SneakyThrows(Exception.class)
    public void removeBucket(String bucketName) {
        minioClient.removeBucket(RemoveBucketArgs.builder().bucket(bucketName).build());
    }

    /******************************  Operate Bucket End  ******************************/


    /******************************  Operate Files Start  ******************************/

    /**
     * check file is exist
     *
     * @param bucketName
     * @param objectName
     * @return
     */
    public boolean isObjectExist(String bucketName, String objectName) {
        boolean exist = true;
        try {
            minioClient.statObject(StatObjectArgs.builder().bucket(bucketName).object(objectName).build());
        } catch (Exception e) {
            log.error("[MinioUtils]>>>>check file exist, Exception：", e);
            exist = false;
        }
        return exist;
    }

    /**
     * check directory exist?
     *
     * @param bucketName
     * @param objectName
     * @return
     */
    public boolean isFolderExist(String bucketName, String objectName) {
        boolean exist = false;
        try {
            Iterable<Result<Item>> results = minioClient.listObjects(
                    ListObjectsArgs.builder().bucket(bucketName).prefix(objectName).recursive(false).build());
            for (Result<Item> result : results) {
                Item item = result.get();
                if (item.isDir() && objectName.equals(item.objectName())) {
                    exist = true;
                }
            }
        } catch (Exception e) {
            log.error("[MinioUtils]>>>>check file exist, Exception：", e);
            exist = false;
        }
        return exist;
    }

    /**
     * Query files based on file prefix
     *
     * @param bucketName
     * @param prefix
     * @param recursive
     * @return MinioItem
     */
    @SneakyThrows(Exception.class)
    public List<Item> getAllObjectsByPrefix(String bucketName,
                                            String prefix,
                                            boolean recursive) {
        List<Item> list = new ArrayList<>();
        Iterable<Result<Item>> objectsIterator = minioClient.listObjects(
                ListObjectsArgs.builder().bucket(bucketName).prefix(prefix).recursive(recursive).build());
        if (objectsIterator != null) {
            for (Result<Item> o : objectsIterator) {
                Item item = o.get();
                list.add(item);
            }
        }
        return list;
    }

    /**
     * get file InputStream
     *
     * @param bucketName
     * @param objectName
     * @return
     */
    @SneakyThrows(Exception.class)
    public InputStream getObject(String bucketName, String objectName) {
        return minioClient.getObject(
                GetObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .build());
    }

    /**
     * Breakpoint download
     *
     * @param bucketName
     * @param objectName
     * @param offset
     * @param length
     * @return
     */
    @SneakyThrows(Exception.class)
    public InputStream getObject(String bucketName, String objectName, long offset, long length) {
        return minioClient.getObject(
                GetObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .offset(offset)
                        .length(length)
                        .build());
    }

    /**
     * Get the list of files under the path
     *
     * @param bucketName
     * @param prefix
     * @param recursive
     * @return
     */
    public Iterable<Result<Item>> listObjects(String bucketName, String prefix, boolean recursive) {
        return minioClient.listObjects(
                ListObjectsArgs.builder()
                        .bucket(bucketName)
                        .prefix(prefix)
                        .recursive(recursive)
                        .build());
    }

    /**
     * use MultipartFile to upload files
     *
     * @param bucketName
     * @param file
     * @param objectName
     * @param contentType
     * @return
     */
    @SneakyThrows(Exception.class)
    public ObjectWriteResponse uploadFile(String bucketName, MultipartFile file, String objectName, String contentType) {
        InputStream inputStream = file.getInputStream();
        return minioClient.putObject(
                PutObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .contentType(contentType)
                        .stream(inputStream, inputStream.available(), -1)
                        .build());
    }

    /**
     * picture upload
     * @param bucketName
     * @param imageBase64
     * @param imageName
     * @return
     */
    public ObjectWriteResponse uploadImage(String bucketName, String imageBase64, String imageName) {
        if (!StringUtils.isEmpty(imageBase64)) {
            InputStream in = base64ToInputStream(imageBase64);
            String newName = System.currentTimeMillis() + "_" + imageName + ".jpg";
            String year = String.valueOf(new Date().getYear());
            String month = String.valueOf(new Date().getMonth());
            return uploadFile(bucketName, year + "/" + month + "/" + newName, in);

        }
        return null;
    }

    public static InputStream base64ToInputStream(String base64) {
        ByteArrayInputStream stream = null;
        try {
            byte[] bytes = new BASE64Decoder().decodeBuffer(base64.trim());
            stream = new ByteArrayInputStream(bytes);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return stream;
    }


    /**
     * upload local files
     *
     * @param bucketName
     * @param objectName
     * @param fileName
     * @return
     */
    @SneakyThrows(Exception.class)
    public ObjectWriteResponse uploadFile(String bucketName, String objectName, String fileName) {
        return minioClient.uploadObject(
                UploadObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .filename(fileName)
                        .build());
    }

    /**
     * upload files based on stream
     *
     * @param bucketName
     * @param objectName
     * @param inputStream
     * @return
     */
    @SneakyThrows(Exception.class)
    public ObjectWriteResponse uploadFile(String bucketName, String objectName, InputStream inputStream) {
        return minioClient.putObject(
                PutObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .stream(inputStream, inputStream.available(), -1)
                        .build());
    }

    /**
     * create file or direatory
     *
     * @param bucketName
     * @param objectName
     * @return
     */
    @SneakyThrows(Exception.class)
    public ObjectWriteResponse createDir(String bucketName, String objectName) {
        return minioClient.putObject(
                PutObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .stream(new ByteArrayInputStream(new byte[]{}), 0, -1)
                        .build());
    }

    /**
     * get file info
     *
     * @param bucketName
     * @param objectName
     * @return
     */
    @SneakyThrows(Exception.class)
    public String getFileStatusInfo(String bucketName, String objectName) {
        return minioClient.statObject(
                StatObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .build()).toString();
    }

    /**
     * copy file
     *
     * @param bucketName
     * @param objectName
     * @param srcBucketName
     * @param srcObjectName
     */
    @SneakyThrows(Exception.class)
    public ObjectWriteResponse copyFile(String bucketName, String objectName, String srcBucketName, String srcObjectName) {
        return minioClient.copyObject(
                CopyObjectArgs.builder()
                        .source(CopySource.builder().bucket(bucketName).object(objectName).build())
                        .bucket(srcBucketName)
                        .object(srcObjectName)
                        .build());
    }

    /**
     * delete file
     *
     * @param bucketName
     * @param objectName
     */
    @SneakyThrows(Exception.class)
    public void removeFile(String bucketName, String objectName) {
        minioClient.removeObject(
                RemoveObjectArgs.builder()
                        .bucket(bucketName)
                        .object(objectName)
                        .build());
    }

    /**
     * batch delete file
     *
     * @param bucketName
     * @param keys
     * @return
     */
    public void removeFiles(String bucketName, List<String> keys) {
        List<DeleteObject> objects = new LinkedList<>();
        keys.forEach(s -> {
            objects.add(new DeleteObject(s));
            try {
                removeFile(bucketName, s);
            } catch (Exception e) {
                log.error("[MinioUtil]>>>>batch delete file，Exception：", e);
            }
        });
    }

    /**
     * get file url
     *
     * @param bucketName
     * @param objectName
     * @param expires
     * @return url
     */
    @SneakyThrows(Exception.class)
    public String getPresignedObjectUrl(String bucketName, String objectName, Integer expires) {
        GetPresignedObjectUrlArgs args = GetPresignedObjectUrlArgs.builder().expiry(expires).bucket(bucketName).object(objectName).build();
        return minioClient.getPresignedObjectUrl(args);
    }

    /**
     * get file url
     *
     * @param bucketName
     * @param objectName
     * @return url
     */
    @SneakyThrows(Exception.class)
    public String getPresignedObjectUrl(String bucketName, String objectName) {
        GetPresignedObjectUrlArgs args = GetPresignedObjectUrlArgs.builder()
                .bucket(bucketName)
                .object(objectName)
                .method(Method.GET).build();
        return minioClient.getPresignedObjectUrl(args);
    }

    /**
     * change URLDecoder to UTF8
     *
     * @param str
     * @return
     * @throws UnsupportedEncodingException
     */
    public String getUtf8ByURLDecoder(String str) throws UnsupportedEncodingException {
        String url = str.replaceAll("%(?![0-9a-fA-F]{2})", "%25");
        return URLDecoder.decode(url, "UTF-8");
    }
}

4 测试

5 代码仓库

https://github.com/363153421/springboot-demo/tree/master/minio