SpringBoot上传下载文件+oss实例

Controller
 
@ApiOperation(value = "上传文件", tags = {"通用接口",})
@ApiResponses(value = {@ApiResponse(code = 200, message = "上传文件", response = ResultVO.class)})
@PostMapping("/upload/file")
public ResultVO uploadFile(@ApiParam(value = "文件") @RequestParam("file") MultipartFile file,
                               @ApiParam(value = "id") @RequestParam("id")Integer id) {
    String filePath = "xx/"+file.getOriginalFilename();
    ResultVO resultVO = new ResultVO();
    resultVO.setCode(200);
    resultVO.setMessage("上传成功");
    try {
        ossUtil.uploadFile(file.getInputStream(),filePath);
    }catch (Exception e){
        resultVO.setMessage("上传失败");
        e.printStackTrace();
    }
    return resultVO;
}

Service
 
/**
     * 上传文件
     * @param inputStream
     * @param fileName
     */
    public void uploadFile(InputStream inputStream, String fileName){
        OSS ossClient = new OSSClientBuilder().build(endpoint, keyId, keySecret);
        String objectName = fileDir+"/"+fileName;
        if(!ossClient.doesBucketExist(bucketName)){
            ossClient.createBucket(bucketName);
        }
        ossClient.putObject(bucketName,objectName,inputStream);
        ossClient.shutdown();
    }

Controller
 
/**
     * 上传文件
*/
@ApiOperation(value = "下载文件", tags = {"通用接口",})
@ApiResponses(value = {@ApiResponse(code = 200, message = "下载文件", response = ResultVO.class)})
@GetMapping("/down/file")
public ResponseEntity downFile(@ApiParam(value = "文件名，包括后缀") @RequestParam("name") String name) {
        ResultVO resultVO = new ResultVO();
        String filePath = "xx/"+name;
        resultVO.setCode(200);
        resultVO.setMessage("下载成功");
        try {
//            ossUtil.downloadFile(name,saveDir,filePath);
            InputStream inputStream = ossUtil.downloadFile(filePath);
            HttpHeaders headers = new HttpHeaders();
            headers.add("Cache-Control", "no-cache, no-store, must-revalidate");
            headers.add("Content-Disposition", "attachment; filename=" + new String(name.getBytes("UTF-8"),"iso-8859-1"));
            headers.add("Pragma", "no-cache");
            headers.add("Expires", "0");
            headers.add("Last-Modified", new Date().toString());
            headers.add("ETag", String.valueOf(System.currentTimeMillis()));
            return new ResponseEntity<byte[]>(ossUtil.getBytes(inputStream), headers, HttpStatus.OK);
 
        }catch (Exception e){
            resultVO.setMessage("下载失败");
            e.printStackTrace();
        }
    return ResponseEntity.notFound().build();
}

Service
 
/**
     * 下载文件
     */
    public InputStream downloadFile(String filePath) throws IOException {
        OSS ossClient = new OSSClientBuilder().build(endpoint, keyId, keySecret);
        String objectName = fileDir+"/"+filePath;
        OSSObject ossObject = ossClient.getObject(bucketName, objectName);
//        ossClient.shutdown();
        return ossObject.getObjectContent();
    }