callicoder / spring-boot-file-upload-download-rest-api-example Goto Github PK

  @PostMapping(value = "/upload", params = {"file"})
  public UploadFileResponse uploadFile(@RequestParam MultipartFile file) {
    FileInstance fileInstance = fileStorageService.storeFile(file);

    String fileDownloadUri = ServletUriComponentsBuilder.fromCurrentContextPath()
      .path("/downloadFile/")
      .path(fileInstance.getId())
      .toUriString();
    
    return new UploadFileResponse(fileInstance.getFileName(), fileDownloadUri,
      file.getContentType(), file.getSize());
  }

  @PostMapping(value = "/upload", params = {"files"})
  public List<UploadFileResponse> uploadFile(@RequestParam MultipartFile[] files) {
    return Arrays.asList(files)
      .stream()
      .map(file -> uploadFile(file))
      .collect(Collectors.toList());
  }