SpringBoot整合minio服务（超详细）

windows系统启动minio:   先下载minio.exe, win+r打开minio.exe所在的文件夹，运行minio.exe  server D:/myMinio，其中D:/myMinio是存放附件文件的路径

启动后在浏览器输入127.0.0.1:9000进入如下页面，新建Bucket,名称（图中yqxl）要与项目配置中的一致。

      

 

 

一、使用docker部署minio
1、拉取镜像

docker pull minio/minio

2、创建目录

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1 2	mkdir -p /home/minio/config mkdir -p /home/minio/data

　　

3、创建Minio容器并运行

docker run -p 9000:9000 -p 9090:9090 \
--net=host \
--name minio \
-d --restart=always \
-e "MINIO_ACCESS_KEY=minioadmin" \
-e "MINIO_SECRET_KEY=minioadmin" \
-v /home/minio/data:/data \
-v /home/minio/config:/root/.minio \
minio/minio server \
/data --console-address ":9090" -address ":9000"

 

4、登录minio控制台

 

5、创建buckets存储桶测试

 

创建一个名为public的存储桶（名字可自定义），上传文件。

 

 

通过http://ip:9000/存储桶名/文件名访问文件

 

 

若出现：

 

 

可以将存储桶的访问权限设置为public.

 

 

二、SpringBoot整合minio
1、创建minio-demo项目

 

2、引入pom依赖

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<dependency> <groupId>io.minio</groupId> <artifactId>minio</artifactId> <version>7.0.2</version> </dependency>

　　

3、编写配置文件
在application.yml文件中编写相关配置。

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server: port: 8081 spring: # 配置文件上传大小限制 servlet: multipart: max-file-size: 200MB max-request-size: 200MB minio: host: http://127.0.0.1:9000 url: ${minio.host}/${minio.bucket}/ access-key: minioadmin secret-key: minioadmin bucket: public

　　

4、编写MinioConfig配置类

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import io.minio.MinioClient; import io.minio.ObjectStat; import io.minio.PutObjectOptions; import io.minio.Result; import io.minio.messages.Bucket; import io.minio.messages.Item; import org.apache.tomcat.util.http.fileupload.IOUtils; import org.springframework.beans.factory.InitializingBean; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; import org.springframework.util.Assert; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.util.UriUtils;   import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.InputStream; import java.net.URLEncoder; import java.nio.charset.StandardCharsets; import java.util.ArrayList; import java.util.List;     @Component public class MinioConfig implements InitializingBean {   @Value(value = "${minio.bucket}") private String bucket;   @Value(value = "${minio.host}") private String host;   @Value(value = "${minio.url}") private String url;   @Value(value = "${minio.access-key}") private String accessKey;   @Value(value = "${minio.secret-key}") private String secretKey;   private MinioClient minioClient;   @Override public void afterPropertiesSet() throws Exception { Assert.hasText(url, "Minio url 为空"); Assert.hasText(accessKey, "Minio accessKey为空"); Assert.hasText(secretKey, "Minio secretKey为空"); this.minioClient = new MinioClient(this.host, this.accessKey, this.secretKey); }       /** * 上传 */ public String putObject(MultipartFile multipartFile) throws Exception { // bucket 不存在，创建 if (!minioClient.bucketExists(this.bucket)) { minioClient.makeBucket(this.bucket); } try (InputStream inputStream = multipartFile.getInputStream()) { // 上传文件的名称 String fileName = multipartFile.getOriginalFilename(); // PutObjectOptions，上传配置(文件大小，内存中文件分片大小) PutObjectOptions putObjectOptions = new PutObjectOptions(multipartFile.getSize(), PutObjectOptions.MIN_MULTIPART_SIZE); // 文件的ContentType putObjectOptions.setContentType(multipartFile.getContentType()); minioClient.putObject(this.bucket, fileName, inputStream, putObjectOptions); // 返回访问路径 return this.url + UriUtils.encode(fileName, StandardCharsets.UTF_8); } }   /** * 文件下载 */ public void download(String fileName, HttpServletResponse response){ // 从链接中得到文件名 InputStream inputStream; try { MinioClient minioClient = new MinioClient(host, accessKey, secretKey); ObjectStat stat = minioClient.statObject(bucket, fileName); inputStream = minioClient.getObject(bucket, fileName); response.setContentType(stat.contentType()); response.setCharacterEncoding("UTF-8"); response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8")); IOUtils.copy(inputStream, response.getOutputStream()); inputStream.close(); } catch (Exception e){ e.printStackTrace(); System.out.println("有异常：" + e); } }   /** * 列出所有存储桶名称 * * @return * @throws Exception */ public List<String> listBucketNames() throws Exception { List<Bucket> bucketList = listBuckets(); List<String> bucketListName = new ArrayList<>(); for (Bucket bucket : bucketList) { bucketListName.add(bucket.name()); } return bucketListName; }   /** * 查看所有桶 * * @return * @throws Exception */ public List<Bucket> listBuckets() throws Exception { return minioClient.listBuckets(); }   /** * 检查存储桶是否存在 * * @param bucketName * @return * @throws Exception */ public boolean bucketExists(String bucketName) throws Exception { boolean flag = minioClient.bucketExists(bucketName); if (flag) { return true; } return false; }   /** * 创建存储桶 * * @param bucketName * @return * @throws Exception */ public boolean makeBucket(String bucketName) throws Exception { boolean flag = bucketExists(bucketName); if (!flag) { minioClient.makeBucket(bucketName); return true; } else { return false; } }   /** * 删除桶 * * @param bucketName * @return * @throws Exception */ public boolean removeBucket(String bucketName) throws Exception { boolean flag = bucketExists(bucketName); if (flag) { Iterable<Result<Item>> myObjects = listObjects(bucketName); for (Result<Item> result : myObjects) { Item item = result.get(); // 有对象文件，则删除失败 if (item.size() > 0) { return false; } } // 删除存储桶，注意，只有存储桶为空时才能删除成功。 minioClient.removeBucket(bucketName); flag = bucketExists(bucketName); if (!flag) { return true; }   } return false; }   /** * 列出存储桶中的所有对象 * * @param bucketName 存储桶名称 * @return * @throws Exception */ public Iterable<Result<Item>> listObjects(String bucketName) throws Exception { boolean flag = bucketExists(bucketName); if (flag) { return minioClient.listObjects(bucketName); } return null; }   /** * 列出存储桶中的所有对象名称 * * @param bucketName 存储桶名称 * @return * @throws Exception */ public List<String> listObjectNames(String bucketName) throws Exception { List<String> listObjectNames = new ArrayList<>(); boolean flag = bucketExists(bucketName); if (flag) { Iterable<Result<Item>> myObjects = listObjects(bucketName); for (Result<Item> result : myObjects) { Item item = result.get(); listObjectNames.add(item.objectName()); } } return listObjectNames; }   /** * 删除一个对象 * * @param bucketName 存储桶名称 * @param objectName 存储桶里的对象名称 * @throws Exception */ public boolean removeObject(String bucketName, String objectName) throws Exception { boolean flag = bucketExists(bucketName); if (flag) { List<String> objectList = listObjectNames(bucketName); for (String s : objectList) { if(s.equals(objectName)){ minioClient.removeObject(bucketName, objectName); return true; } } } return false; }   /** * 文件访问路径 * * @param bucketName 存储桶名称 * @param objectName 存储桶里的对象名称 * @return * @throws Exception */ public String getObjectUrl(String bucketName, String objectName) throws Exception { boolean flag = bucketExists(bucketName); String url = ""; if (flag) { url = minioClient.getObjectUrl(bucketName, objectName); } return url; }   }

　　

5、编写MinioController类

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import com.minio.demo.config.MinioConfig; 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;   @RestController @CrossOrigin @RequestMapping("/test") public class MinioController {   @Autowired MinioConfig minioConfig;   // 上传 @PostMapping("/upload") public Object upload(@RequestParam("file") MultipartFile multipartFile) throws Exception { return this.minioConfig.putObject(multipartFile); }   // 下载文件 @GetMapping("/download") public void download(@RequestParam("fileName")String fileName, HttpServletResponse response) { this.minioConfig.download(fileName,response); }   // 列出所有存储桶名称 @PostMapping("/list") public List<String> list() throws Exception { return this.minioConfig.listBucketNames(); }   // 创建存储桶 @PostMapping("/createBucket") public boolean createBucket(String bucketName) throws Exception { return this.minioConfig.makeBucket(bucketName); }   // 删除存储桶 @PostMapping("/deleteBucket") public boolean deleteBucket(String bucketName) throws Exception { return this.minioConfig.removeBucket(bucketName); }   // 列出存储桶中的所有对象名称 @PostMapping("/listObjectNames") public List<String> listObjectNames(String bucketName) throws Exception { return this.minioConfig.listObjectNames(bucketName); }   // 删除一个对象 @PostMapping("/removeObject") public boolean removeObject(String bucketName, String objectName) throws Exception { return this.minioConfig.removeObject(bucketName, objectName); }   // 文件访问路径 @PostMapping("/getObjectUrl") public String getObjectUrl(String bucketName, String objectName) throws Exception { return this.minioConfig.getObjectUrl(bucketName, objectName); } }

　　

6、测试（上传）

 

开发中上传接口用得较多，其他接口可自行测试。

三、Vue+Element-ui前端交互

 

 

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# npm下载element-ui   npm install element-ui -S   // 引入ElementUI import ElementUI from 'element-ui' import 'element-ui/lib/theme-chalk/index.css' Vue.use(ElementUI) <template> <div id="app"> <el-upload class="avatar-uploader" action="http://127.0.0.1:8081/test/upload" :show-file-list="false" :on-success="handleAvatarSuccess" :before-upload="beforeAvatarUpload"> <img v-if="imageUrl" :src="imageUrl" class="avatar"> <i v-else class="el-icon-plus avatar-uploader-icon"></i> </el-upload> </div> </template>   <script> export default { data() { return { imageUrl: '' }; }, methods: { handleAvatarSuccess(res, file) { this.imageUrl = URL.createObjectURL(file.raw); }, beforeAvatarUpload(file) { const isJPG = file.type === 'image/jpeg' || file.type === 'image/png'; const isLt2M = file.size / 1024 / 1024 < 2; if (!isJPG) { this.$message.error('上传头像图片只能是 jpg或png 格式!'); } if (!isLt2M) { this.$message.error('上传头像图片大小不能超过 2MB!'); } return isJPG && isLt2M; } } } </script>   <style lang="less"> .avatar-uploader .el-upload { border: 1px dashed #d9d9d9; border-radius: 6px; cursor: pointer; position: relative; left: 200px; top: 120px; overflow: hidden; } .avatar-uploader .el-upload:hover { border-color: #409EFF; } .avatar-uploader-icon { position: relative; top: 80px; font-size: 28px; color: #8c939d; width: 389px; height: 204px; line-height: 178px; text-align: center; } .avatar { width: 389px; height: 204px; display: block; } </style