1.（1）linux安装minio

wget https://dl.minio.io/server/minio/release/linux-amd64/minio
chmod +x minio
mv minio /usr/local/bin
mkdir -p /usr/local/minio/data
minio server /usr/local/minio/data  //运行

前台运行

（2）docker安装minio （推荐）

docker pull minio/minio
docker run -it -p 9000:9000 -d minio/minio server /data

//设置 ACCESS_KEY 和 SECRET_KEY
echo "admin" | docker secret create access_key -
echo "admin123456" | docker secret create secret_key -

//自定义用户和秘钥安装
docker run -p 9000:9000 --name minio \
-d --restart=always \
-e "MINIO_ACCESS_KEY=admin" \
-e "MINIO_SECRET_KEY=admin123456" \
-v /home/data:/data \
-v /home/config:/root/.minio \
minio/minio server /data

2.访问minio

http://218.244.138.54:9000/

minio

3.使用java上传图片

3.1 导入maven依赖

<dependency>
    <groupId>io.minio</groupId>
    <artifactId>minio</artifactId>
    <version>7.1.0</version>
</dependency>

3.2 图片上传工具类

package org.jeecg.common.util;


import io.minio.GetObjectArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.RemoveObjectArgs;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;

/**
 * @author: lzm
 * @date: 2020/12/17 10:13 上午
 */
public class MinioUtils {


    private static String url = "http://218.244.138.54:9000";

    private static String access = "access";

    private static String secret = "secret";

    private static String bucket = "bucket";

    /**
     * 上传
     * @return
     */
    public static String uploadFileMinio(MultipartFile file,String receiptId){
        try {
            //创建MinioClient对象
            MinioClient minioClient =
                    MinioClient.builder()
                            .endpoint(url)
                            .credentials(access, secret)
                            .build();
            File toFile = MultipartFileToFile.multipartFileToFile(file);
            InputStream in = new FileInputStream(toFile);
            String fileName = file.getName();
            //文件上传到minio上的Name把文件后缀带上，不然下载出现格式问题
            fileName = receiptId+"."+fileName;

            //创建头部信息
            Map<String, String> headers = new HashMap<>(10);
            //添加自定义内容类型
            headers.put("Content-Type", "application/octet-stream");
            //添加存储类
            headers.put("X-Amz-Storage-Class", "REDUCED_REDUNDANCY");
            //添加自定义/用户元数据
            Map<String, String> userMetadata = new HashMap<>(10);
            userMetadata.put("My-Project", "Project One");
            //上传
            minioClient.putObject(
                    PutObjectArgs.builder().bucket(bucket).object(fileName).stream(
                            in, in.available(), -1)
                            .headers(headers)
                            .userMetadata(userMetadata)
                            .build());
            in.close();
            return url+"/"+bucket+"/"+fileName;
        }catch (Exception e){
            e.printStackTrace();
            return e.getMessage();
        }
    }

    /**
     * 删除
     * @param fileName
     * @return
     * @throws Exception
     */
    public static String removeMinio(String fileName){
        try {
            //创建MinioClient对象
            MinioClient minioClient = MinioClient.builder()
                    .endpoint(url)
                    .credentials(access, secret)
                    .build();
            minioClient.removeObject( RemoveObjectArgs.builder().bucket(bucket).object(fileName).build());
            return "success";
        }catch (Exception e){
            e.printStackTrace();
            return e.getMessage();
        }

    }

    /**
     * 下载
     * @return
     */
    public void downloadMinio(String fileName){
        try {
            //创建MinioClient对象
            MinioClient minioClient =
                    MinioClient.builder()
                            .endpoint(url)
                            .credentials(access, secret)
                            .build();
            InputStream stream = minioClient.getObject(GetObjectArgs.builder().bucket(bucket).object(fileName).build());
            byte[] buf = new byte[1024];
            int bytesRead;
            while ((bytesRead = stream.read(buf, 0, buf.length)) >= 0) {
                System.out.println(new String(buf, 0, bytesRead, StandardCharsets.UTF_8));
            }
            stream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

3.3 效果图

上传成功

4.获取图片地址（设置为短链接）

修改指定bucket的policy
添加policy