SpringBoot 整合 Minio 实现 文件上传

一、搭建

1.1、Docker 下 MinIO 安装与配置

Docker 下 MinIO 安装与配置_JAVA·Ｄ·WangJing的博客-CSDN博客

1.2、创建存储桶

1.3、创建服务账号

二、创建 springboot 项目

mac idea 创建 springboot 项目_JAVA·Ｄ·WangJing的博客-CSDN博客_mac搭建一个springboot项目

三、pom.xml依赖配置

<dependency>
    <groupId>io.miniogroupId>
    <artifactId>minioartifactId>
    <version>8.0.3version>
dependency>

四、bootstrap.yml 或 application.yml 添加配置

spring:
    # 配置文件上传大小限制
    servlet:
        multipart:
        max-file-size: 200GB
        max-request-size: 200GB
minio:
    endpoint: http://**.**.**.**:8801
    accessKey: bx20******k84h
    secretKey: 4wL8****************1mok
    bucketName: test

五、代码

5.1、MinIoClientConfig 类（注册minio客户端）

package com.wangjing.minio.conf;
 
import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
 
/**
 * @author: wangjing
 * @createTime: 2022-09-09 14:31
 * @version:
 * @Description: 注册minio客户端
 */
@Data
@Component
public class MinIoClientConfig {
 
    @Value("${minio.endpoint}")
    private String endpoint;
 
    @Value("${minio.accessKey}")
    private String accessKey;
 
    @Value("${minio.secretKey}")
    private String secretKey;
 
    /**
     * 注入minio 客户端
     *
     * @return
     */
    @Bean
    public MinioClient minioClient() {
        return MinioClient.builder().endpoint(endpoint).credentials(accessKey, secretKey).build();
    }
 
}

5.2、MinioService 类（minio工具类）

package com.wangjing.minio.service;
 
import com.wangjing.minio.entity.ObjectItem;
import io.minio.*;
import io.minio.messages.DeleteError;
import io.minio.messages.DeleteObject;
import io.minio.messages.Item;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
 
/**
 * @author: wangjing
 * @createTime: 2022-09-09 14:33
 * @version:
 * @Description: minio工具类
 */
@Component
public class MinioService {
 
    @Autowired
    private MinioClient minioClient;
 
    @Value("${minio.bucketName}")
    private String bucketName;
 
    /**
     * 判断bucket是否存在，不存在则创建
     *
     * @param name
     */
    public void existBucket(String name) {
        try {
            boolean exists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(name).build());
            if (!exists) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(name).build());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
    /**
     * 创建存储bucket
     *
     * @param bucketName
     * @return
     */
    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
     *
     * @param bucketName
     * @return
     */
    public Boolean removeBucket(String bucketName) {
        try {
            minioClient.removeBucket(RemoveBucketArgs.builder()
                    .bucket(bucketName)
                    .build());
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }
 
    /**
     * 多文件上传
     *
     * @param multipartFileArr
     * @return
     */
    public List upload(MultipartFile[] multipartFileArr) {
        List names = new ArrayList<>(multipartFileArr.length);
        for (MultipartFile file : multipartFileArr) {
 
            names.add(upload(file));
        }
        return names;
    }
 
    /**
     * 单文件上传
     *
     * @param multipartFile
     * @return
     */
    public String upload(MultipartFile multipartFile) {
        String fileName = multipartFile.getOriginalFilename();
        String[] split = fileName.split("\\.");
        if (split.length > 1) {
            fileName = split[0] + "_" + System.currentTimeMillis() + "." + split[1];
        } else {
            fileName = fileName + System.currentTimeMillis();
        }
        InputStream in = null;
        try {
            in = multipartFile.getInputStream();
            minioClient.putObject(PutObjectArgs.builder()
                    .bucket(bucketName)
                    .object(fileName)
                    .stream(in, in.available(), -1)
                    .contentType(multipartFile.getContentType())
                    .build()
            );
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return fileName;
    }
 
    /**
     * 下载文件
     *
     * @param fileName
     * @return
     */
    public ResponseEntity<byte[]> download(String fileName) {
        ResponseEntity<byte[]> responseEntity = null;
        InputStream in = null;
        ByteArrayOutputStream out = null;
        try {
            in = minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).object(fileName).build());
            out = new ByteArrayOutputStream();
            IOUtils.copy(in, out);
            //封装返回值
            byte[] bytes = out.toByteArray();
            HttpHeaders headers = new HttpHeaders();
            try {
                headers.add("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            headers.setContentLength(bytes.length);
            headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
            headers.setAccessControlExposeHeaders(Arrays.asList("*"));
            responseEntity = new ResponseEntity<byte[]>(bytes, headers, HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return responseEntity;
    }
 
    /**
     * 查看文件对象
     *
     * @param bucketName
     * @return
     */
    public List listObjects(String bucketName) {
        Iterable> results = minioClient.listObjects(
                ListObjectsArgs.builder().bucket(bucketName).build());
        List objectItems = new ArrayList<>();
        try {
            for (Result result : results) {
                Item item = result.get();
                ObjectItem objectItem = new ObjectItem();
                objectItem.setObjectName(item.objectName());
                objectItem.setSize(item.size());
                objectItems.add(objectItem);
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return objectItems;
    }
 
    /**
     * 批量删除文件对象
     *
     * @param bucketName
     * @param objects
     * @return
     */
    public Iterable> removeObjects(String bucketName, List objects) {
        List dos = objects.stream().map(e -> new DeleteObject(e)).collect(Collectors.toList());
        Iterable> results =
                minioClient.removeObjects(RemoveObjectsArgs.builder().bucket(bucketName).objects(dos).build());
        return results;
    }
}

5.3、ObjectItem 类（实体类）

package com.wangjing.minio.entity;
 
import lombok.Data;
 
/**
 * @author: wangjing
 * @createTime: 2022-09-09 14:36
 * @version:
 * @Description: 实体类
 */
@Data
public class ObjectItem {
    private String objectName;
    private Long size;
}

5.4、MinioController 类（测试接口类）

package com.wangjing.minio.controller;
 
import com.wangjing.minio.service.MinioService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
 
import java.util.List;
 
/**
 * @author:
 * @createTime: 2022-09-09 14:37
 * @version:
 * @Description:
 */
@RestController
@Slf4j
public class MinioController {
 
    @Autowired
    private MinioService minioService;
 
    @Value("${minio.endpoint}")
    private String address;
 
    @Value("${minio.bucketName}")
    private String bucketName;
 
    
    @PostMapping("/upload")
    public Object upload(MultipartFile file) {
 
        String upload = minioUtil.upload(file);
 
        return address + "/" + bucketName + "/" + upload;
    }
 
}

六、测试

6.1、postMan 请求接口

6.2、返回url 通过浏览器打开

发现权限有问题，更改桶的展示权限

再次刷新，可以正常访问

6.3、登录minio 后台管理，查看test 桶数据

注：以上内容仅提供参考和交流，请勿用于商业用途，如有侵权联系本人删除！

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