docker-compose安装minio，并设置挂载目录

java">version: '3.8'services:minio:image: minio/miniocontainer_name: minioenvironment:MINIO_ROOT_USER: rootMINIO_ROOT_PASSWORD: 123456789restarts: alwaysprivileged: trueports:- "9000:9000"- "9001:9001"volumes:- ./minio-data:/datacommand: server /data --console-address ":9001"

其中请自行修改用户名、密码、挂载目录和对应的端口与映射（密码至少需要9位，否则启动报错）

其中9001是后台服务的端口

springboot集成minio

pom.xml

<dependency><groupId>io.minio</groupId><artifactId>minio</artifactId><version>8.2.0</version>
</dependency>

application.yml 

minio:endpoint: http://xxx:9000 #Minio服务所在地址bucket: test #存储桶名称accessKey: root #访问的keysecretKey: 1234 #访问的秘钥

 springboot读取配置文件并注册bean

配置属性的实体类

java">@Data
@ConfigurationProperties(prefix = "minio")
@Component
public class MinioProp {private String endpoint;private String accessKey;private String secretKey;private String bucket;
}

配置类

java">@Configuration
public class MinioConfig {@Autowiredprivate MinioProp minioProp;@Beanpublic MinioClient minioClient(){return MinioClient.builder().endpoint(minioProp.getEndpoint()).credentials(minioProp.getAccessKey(), minioProp.getSecretKey()).build();}
}

springboot创建桶并设置桶仅可读

以下代码仅做示例

java">@RestController
@Slf4j
public class TestController {@Autowiredprivate MinioClient minioClient;@Autowiredprivate MinioProp minioProp;@GetMapping("/init")public R<String> init() {try {boolean exists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProp.getBucket()).build());if (!exists) {minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProp.getBucket()).build());}} catch (Exception e) {return R.fail(ResultStatusEnum.FAIL);}return R.ok("init success");}@GetMapping("/set-public")public R<String> setPublic() {String policyJson = "{\n" +"    \"Version\": \"2012-10-17\",\n" +"    \"Statement\": [\n" +"        {\n" +"            \"Effect\": \"Allow\",\n" +"            \"Principal\": {\n" +"                \"AWS\": [\n" +"                    \"*\"\n" +"                ]\n" +"            },\n" +"            \"Action\": [\n" +"                \"s3:GetObject\"\n" +"            ],\n" +"            \"Resource\": [\n" +"                \"arn:aws:s3:::" + minioProp.getBucket() + "/*\"\n" +"            ]\n" +"        }\n" +"    ]\n" +"}";try {minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProp.getBucket()).config(policyJson).build());} catch (Exception e) {return R.fail(ResultStatusEnum.FAIL);}return R.ok("set public success");}
}

上传文件

java">@Autowired
private MinioClient minioClient;
@Autowired
private MinioProp minioProp;
@PostMapping
public R<String> uploadImage(@RequestParam("file") MultipartFile file) {try {String originalFilename = file.getOriginalFilename();String type = FileUtil.extName(originalFilename);String path = "testPath";String fileName = IdUtil.fastSimpleUUID() + StrUtil.DOT + type;minioClient.putObject(PutObjectArgs.builder().bucket(minioProp.getBucket()).object(path+ '/' + fileName).contentType(file.getContentType()).stream(file.getInputStream(), file.getInputStream().available(), -1).build());log.info("文件上传成功:{}", originalFilename);return R.ok(minioProp.getEndpoint() +"/" + minioProp.getBucket() +"/" + path+"/" + fileName);} catch (Exception e) {log.error("上传文件失败", e);return R.fail(ResultStatusEnum.FAIL);}
}

此时通过上面方法返回的地址即可访问该文件

通过9001端口进入到后台页面，可以发现该文件已上传