SpringBoot整合Minio，一篇带你入门使用Minio

迷南。 2024-05-24 01:47 9阅读 0赞

> 本文介绍SpringBoot如何整合Minio，解决文件存储问题

#### 文章目录 ####

*  前言
 *  环境搭建
 *   *  项目环境搭建
     *   *  添加依赖库
         *  yml配置
     *  Docker安装minio
 *  代码实现
 *   *  MiniConfig
     *  service
     *  controller
 *  测试

## 前言 ##

参考链接：

*  [官网][Link 1]

## 环境搭建 ##

### 项目环境搭建 ###

将minio单独封装成一个module，上层导入依赖，比如api module  
![在这里插入图片描述][c5c24ce01d3a48faa54d077a6c6dcfde.jpeg_pic_center]  
在api 模块，测试接口  
![在这里插入图片描述][42ceec4a402642a68474c4048941a990.jpeg_pic_center]

#### 添加依赖库 ####

<?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>spring-learn</artifactId>
            <groupId>org.ym</groupId>
            <version>1.0-SNAPSHOT</version>
            <relativePath>../../pom.xml</relativePath>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>learn-common-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.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
            <dependency>
                <groupId>io.minio</groupId>
                <artifactId>minio</artifactId>
                <version>8.4.5</version>
            </dependency>
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
            </dependency>
        </dependencies>
    
    </project>

#### yml配置 ####

`application.yml配置`，配置minio基本信息

server:
      port: 9203
    
    minio:
      endpoint: http://127.0.0.1:9000
      bucketName: learn-minio
      accessKey: minioadmin
      secretKey: minioadmin
    
    spring:
      application:
        name: learn-api
      mvc:
        pathmatch:
          matching-strategy: ant_path_matcher

### Docker安装minio ###

首先要创建本机data目录`/Users/yangmiao/config/docker/data/minio`，至于Docker常见命令的使用，参考我的另一篇文章[Docker常见命令使用][Docker]

sudo docker run -p 9000:9000 -p 9090:9090 \
    --name minio \
    -d --restart=always \
    -e "MINIO_ACCESS_KEY=minioadmin" \
    -e "MINIO_SECRET_KEY=minioadmin" \
    -v /Users/yangmiao/config/docker/data/minio:/data \
    minio/minio server \
    /data --console-address ":9090" -address ":9000"

镜像启动成功后，浏览器访问：`http://localhost:9090/`，输入用户名和密码minioadmin。  
![在这里插入图片描述][9f0c887b05f34ee6bf83b35ff4cba63e.jpeg_pic_center]

## 代码实现 ##

### MiniConfig ###

package com.ym.learn.minio.config;
    
    import com.ym.learn.minio.service.MinioService;
    import com.ym.learn.minio.service.impl.MinioServiceImpl;
    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;
    
    /**
     * @Author: Yangmiao
     * @Date: 2023/4/21 23:04
     * @Desc: minio基础配置
     */
    @Data
    @Configuration
    @ConfigurationProperties(prefix = "minio")
    public class MinioConfig {
        
        /**
         * 服务地址
         */
        private String endpoint;
        /**
         * 访问key
         */
        private String accessKey;
        /**
         * 密钥
         */
        private String secretKey;
        /**
         * 桶名称
         */
        private String bucketName;
    
        @Bean
        public MinioClient minioClient() {
        
            return MinioClient.builder()
                    .endpoint(endpoint)
                    .credentials(accessKey, secretKey)
                    .build();
        }
    
        @Bean
        public MinioService minioService(){
        
            return new MinioServiceImpl();
        }
    }

![在这里插入图片描述][5666bf661f4b490d9efef62695bdb731.jpeg_pic_center]

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
      com.ym.learn.minio.config.MinioConfig

### service ###

package com.ym.learn.minio.service;
    
    import com.ym.learn.minio.config.MinioConfig;
    import io.minio.MinioClient;
    import io.minio.messages.Bucket;
    import io.minio.messages.Item;
    import lombok.extern.slf4j.Slf4j;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import org.springframework.web.multipart.MultipartFile;
    
    import javax.servlet.http.HttpServletResponse;
    import java.util.List;
    
    /**
     * @Author: Yangmiao
     * @Date: 2023/4/21 23:09
     * @Desc: minio服务
     */
    public interface MinioService {
        
        /**
         * 判断bucket是否存在
         * @param bucketName
         * @return
         */
        boolean bucketExists(String bucketName);
    
        /**
         * 创建bucket
         * @param bucketName
         * @return
         */
        boolean createBucket(String bucketName);
    
        /**
         * 删除bucket
         * @param bucketName
         * @return
         */
        boolean removeBucket(String bucketName);
    
        /**
         * 获取所有的bucket
         * @return
         */
        List<Bucket> getAllBuckets();
    
        /**
         * 上传文件
         * @param multipartFile
         * @return
         */
        String upload(MultipartFile multipartFile);
    
        /**
         * 下载文件
         * @param fileName
         * @param res
         */
        void download(String fileName, HttpServletResponse res);
    
        /**
         * 删除文件
         * @param fileName
         * @return
         */
        boolean remove(String fileName);
    
        /**
         * 预览文件
         * @param fileName
         * @return
         */
        String preview(String fileName);
    
        /**
         * 查看所有的文件对象
         * @return
         */
        List<Item> getAllFiles();
    
    }

package com.ym.learn.minio.service.impl;
    
    import cn.hutool.core.io.IoUtil;
    import cn.hutool.core.lang.UUID;
    import cn.hutool.core.util.StrUtil;
    import com.ym.learn.minio.config.MinioConfig;
    import com.ym.learn.minio.service.MinioService;
    import io.minio.*;
    import io.minio.http.Method;
    import io.minio.messages.Bucket;
    import io.minio.messages.Item;
    import lombok.extern.slf4j.Slf4j;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.http.MediaType;
    import org.springframework.stereotype.Service;
    import org.springframework.web.multipart.MultipartFile;
    
    import javax.servlet.ServletOutputStream;
    import javax.servlet.http.HttpServletResponse;
    import java.io.ByteArrayOutputStream;
    import java.io.IOException;
    import java.net.URLEncoder;
    import java.time.LocalDateTime;
    import java.time.format.DateTimeFormatter;
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * @Author: Yangmiao
     * @Date: 2023/4/21 23:12
     * @Desc:
     */
    @Service
    @Slf4j
    public class MinioServiceImpl implements MinioService {
        
        @Autowired
        private MinioConfig minioConfig;
        @Autowired
        private MinioClient minioClient;
    
        @Override
        public boolean bucketExists(String bucketName) {
        
            if (StrUtil.isEmpty(bucketName)){
        
                return false;
            }
            boolean res = false;
            try {
        
                res = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
            } catch (Exception e) {
        
                log.error("bucketExists error: {}",e.getMessage());
                e.printStackTrace();
                return false;
            }
            return res;
        }
    
        @Override
        public boolean createBucket(String bucketName) {
        
            if (StrUtil.isEmpty(bucketName)){
        
                return false;
            }
            try {
        
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
            }catch (Exception e){
        
                log.error("createBucket error: {}",e.getMessage());
                e.printStackTrace();
                return false;
            }
            return true;
        }
    
        @Override
        public boolean removeBucket(String bucketName) {
        
            if (StrUtil.isEmpty(bucketName)){
        
                return false;
            }
            try {
        
                minioClient.removeBucket(RemoveBucketArgs.builder().bucket(bucketName).build());
            }catch (Exception e){
        
                log.error("removeBucket error: {}",e.getMessage());
                e.printStackTrace();
                return false;
            }
            return true;
        }
    
        @Override
        public List<Bucket> getAllBuckets() {
        
            try {
        
                return minioClient.listBuckets();
            }catch (Exception e){
        
                log.error("getAllBuckets error: {}",e.getMessage());
                e.printStackTrace();
            }
            return null;
        }
    
        @Override
        public String upload(MultipartFile multipartFile) {
        
            if (multipartFile == null){
        
                return null;
            }
            String fileName = multipartFile.getOriginalFilename();
            if (StrUtil.isBlank(fileName)){
        
                throw new RuntimeException("upload fail!");
            }
            fileName = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd"))+"_"+UUID.randomUUID().toString().replaceAll("-","")+
                    fileName.substring(fileName.lastIndexOf("."));
            log.debug("upload: fileName {}",fileName);
            try {
        
                minioClient.putObject(PutObjectArgs.builder()
                                .bucket(minioConfig.getBucketName())
                                .object(fileName)
                                .stream(multipartFile.getInputStream(), multipartFile.getSize(), -1)
                                .contentType(multipartFile.getContentType())
                                .build());
            } catch (Exception e) {
        
                log.error("upload error: {}",e.getMessage());
                e.printStackTrace();
                return null;
            }
            String url = minioConfig.getEndpoint()+"/"+minioConfig.getBucketName()+"/"+fileName;
            return url;
        }
    
        @Override
        public void download(String fileName, HttpServletResponse res) {
        
            if (StrUtil.isEmpty(fileName)){
        
                return;
            }
            ByteArrayOutputStream out = null;
            try {
        
                GetObjectResponse objectResponse = minioClient.getObject(GetObjectArgs.builder()
                        .bucket(minioConfig.getBucketName())
                        .object(fileName)
                        .build());
    
                out = new ByteArrayOutputStream();
                IoUtil.copy(objectResponse,out);
                res.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
                res.setContentLength(out.toByteArray().length);
                res.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
                try(ServletOutputStream stream = res.getOutputStream()){
        
                    stream.write(out.toByteArray());
                    stream.flush();
                }
            }catch (Exception e){
        
                log.error("download error: {}",e.getMessage());
                e.printStackTrace();
            }finally {
        
                if (out != null){
        
                    try {
        
                        out.close();
                    } catch (IOException e) {
        
                        e.printStackTrace();
                    }
                }
            }
        }
    
        @Override
        public boolean remove(String fileName) {
        
            if (StrUtil.isEmpty(fileName)){
        
                return false;
            }
            try {
        
                minioClient.removeObject(RemoveObjectArgs.builder().bucket(minioConfig.getBucketName()).object(fileName).build());
            }catch (Exception e){
        
                log.error("remove error: {}",e.getMessage());
                e.printStackTrace();
                return false;
            }
            return true;
        }
    
        @Override
        public String preview(String fileName) {
        
            if (StrUtil.isEmpty(fileName)){
        
                return null;
            }
            try {
        
                return minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
                        .bucket(minioConfig.getBucketName())
                        .object(fileName)
                        .method(Method.GET)
                        .build());
            }catch (Exception e){
        
                log.error("preview error: {}",e.getMessage());
                e.printStackTrace();
                return null;
            }
        }
    
        @Override
        public List<Item> getAllFiles() {
        
            List<Item> itemList = new ArrayList<>();
            try {
        
                Iterable<Result<Item>> listObjects = minioClient.listObjects(
                        ListObjectsArgs.builder()
                                .bucket(minioConfig.getBucketName())
                                .build());
                try {
        
                    for (Result<Item> item:listObjects){
        
                        itemList.add(item.get());
                    }
                }catch (Exception e){
        
                    log.error("getAllFiles error, get item fail! {}",e.getMessage());
                    e.printStackTrace();
                    return null;
                }
            }catch (Exception e){
        
                log.error("getAllFiles error {}",e.getMessage());
                e.printStackTrace();
                return null;
            }
            return itemList;
        }
    }

### controller ###

package com.ym.learn.api.controller;
    
    import com.ym.learn.core.api.R;
    import com.ym.learn.minio.config.MinioConfig;
    import com.ym.learn.minio.service.MinioService;
    import io.minio.messages.Bucket;
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import lombok.extern.slf4j.Slf4j;
    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.util.List;
    
    /**
     * @Author: Yangmiao
     * @Date: 2023/4/22 23:00
     * @Desc:
     */
    @Api(tags = "minio接口")
    @RestController
    @RequestMapping("/file")
    @Slf4j
    public class MinioController {
        
        @Autowired
        private MinioService minioService;
        @Autowired
        private MinioConfig minioConfig;
    
        @ApiOperation(value = "判断bucket是否存在")
        @GetMapping("/bucketExist")
        public R bucketExist(@RequestParam("bucketName")String bucketName){
        
            boolean exists = minioService.bucketExists(bucketName);
            return R.ok(exists);
        }
    
        @ApiOperation(value = "创建bucket")
        @GetMapping("/createBucket")
        public R createBucket(String bucketName){
        
            boolean ret = minioService.createBucket(bucketName);
            return R.ok(ret);
        }
    
        @ApiOperation(value = "删除bucket")
        @GetMapping("/removeBucket")
        public R removeBucket(String bucketName){
        
            boolean removeBucket = minioService.removeBucket(bucketName);
            return R.ok(removeBucket);
        }
    
        @ApiOperation(value = "获取所有的bucket")
        @GetMapping("/getAllBucket")
        public R getAllBucket(){
        
            List<Bucket> allBuckets = minioService.getAllBuckets();
            return R.ok(allBuckets);
        }
    
        @ApiOperation(value = "上传文件")
        @PostMapping("/uploadFile")
        public R uploadFile(@RequestParam("file") MultipartFile file){
        
            String upload = minioService.upload(file);
            return R.ok(upload);
        }
    
        @ApiOperation(value = "查看Image")
        @GetMapping("/preview")
        public R preview(String fileName){
        
            String preview = minioService.preview(fileName);
            return R.ok(preview);
        }
    
        @ApiOperation(value = "下载文件")
        @GetMapping("/downloadFile")
        public R downloadFile(String fileName, HttpServletResponse response){
        
            minioService.download(fileName,response);
            return R.ok();
        }
    
        @ApiOperation(value = "删除文件")
        @PostMapping("/removeFile")
        public R removeFile(String url){
        
            String objName = url.substring(url.lastIndexOf(minioConfig.getBucketName()+"/") + minioConfig.getBucketName().length()+1);
            boolean remove = minioService.remove(objName);
            return R.ok(remove);
        }![在这里插入图片描述](https://img-blog.csdnimg.cn/f9965e88a5b84d62ba029ffc86e065f3.jpeg#pic_center)
    
    
    }

## 测试 ##

由于项目已引入了Knife4j，本文采用了Knife4j和ApiPost测试  
![在这里插入图片描述][af6a3fa0034d402e93e5eee75139112a.jpeg_pic_center]  
![在这里插入图片描述][f6b90eac251d4282a3b0b61c9de98a8f.jpeg_pic_center]  
查看minio是否上传成功图片，以及bucket是否成功创建。  
![在这里插入图片描述][f9d6d5e8b86b44739afbd68c6b3dad28.jpeg_pic_center]

[Link 1]: https://www.minio.org.cn/
[c5c24ce01d3a48faa54d077a6c6dcfde.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/1516065990b9498abf4315807c4a1dc8.jpeg
[42ceec4a402642a68474c4048941a990.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/830d25bb2ccf45c1b79973ccbe65dd26.jpeg
[Docker]: https://blog.csdn.net/baidu_33256174/article/details/129769141?spm=1001.2014.3001.5501
[9f0c887b05f34ee6bf83b35ff4cba63e.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/17ab53d9f52e4159bc3c9acb9a127e97.jpeg
[5666bf661f4b490d9efef62695bdb731.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/45ec6cf51e34431a968124cc0d62952a.jpeg
[af6a3fa0034d402e93e5eee75139112a.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/42110bd81362448ab582a9ffb90e646b.jpeg
[f6b90eac251d4282a3b0b61c9de98a8f.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/a9ec662417a243cd81bd6003e9916247.jpeg
[f9d6d5e8b86b44739afbd68c6b3dad28.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/a58f4eeccbcc446ca0537d42b6930f70.jpeg