若依minio上传下载

### 若依框架中集成MinIO实现文件上传和下载 #### 集成环境配置 为了使若依框架能够支持MinIO的文件操作，需先完成依赖引入。在`pom.xml`文件内加入MinIO SDK的相关依赖[^1]。 ```xml <dependency> <groupId>io.minio</groupId> <artifactId|minio|version>8.5.7</version> </dependency> ``` #### 初始化MinIO客户端 通过创建一个工具类来初始化MinIO Client，在该类中定义连接到MinIO服务器所需的信息如端点URL、访问密钥等参数[^2]。 ```java import io.minio.MinioClient; public class MinioUtil { private static final String ENDPOINT = "http://your-minio-server-url"; private static final String ACCESS_KEY = "your-access-key"; private static final String SECRET_KEY = "your-secret-key"; public static MinioClient getMinioClient() throws Exception{ return new MinioClient(ENDPOINT,ACCESS_KEY,SECRET_KEY); } } ``` #### 文件上传接口设计 基于Spring Boot控制器模式编写用于处理HTTP请求的方法，接收从前端发送过来的数据流并调用MinIO API执行实际的文件保存工作。 ```java @RestController @RequestMapping("/minio") public class FileUploadController { @PostMapping("/upload") public ResponseEntity<String> uploadFile(@RequestParam("file") MultipartFile file){ try{ MinioClient minioClient = MinioUtil.getMinioClient(); InputStream inputStream = file.getInputStream(); ObjectWriteResponse response = minioClient.putObject( PutObjectArgs.builder() .bucket("test-bucket-name") .object(file.getOriginalFilename()) .stream(inputStream,file.getSize(),-1) .contentType(file.getContentType()) .build()); return ResponseEntity.ok("Success"); }catch(Exception e){ return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(e.getMessage()); } } } ``` #### 文件下载接口开发 同样利用RESTful风格的服务提供对外暴露的API路径，允许用户指定要获取的对象名称从而触发相应的检索逻辑。 ```java @GetMapping("/download/{fileName}") public void downloadFile(HttpServletResponse response,@PathVariable String fileName)throws IOException{ try{ MinioClient minioClient = MinioUtil.getMinioClient(); GetObjectArgs getObjectArgs = GetObjectArgs.builder().bucket("test-bucket-name").object(fileName).build(); try(InputStream stream = minioClient.getObject(getObjectArgs)){ IOUtils.copy(stream,response.getOutputStream()); response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition","attachment;filename="+ URLEncoder.encode(fileName,"UTF-8")); } } catch (Exception ex) { throw new RuntimeException(ex); } } ```