我在编程时避免使用其他服务https://github.com/JonkiPro/REST-Web-Services/tree/master/core/src/main/java/com/core/jpa/service中的服务。我尝试在服务上只使用仓库。我目前正在编写一个使用两个服务的控制器。一个在云中保存文件，另一个从云中带有文件标识符的实体保存。

@PutMapping(value = "/contributions/{id}/photos")
@ResponseStatus(HttpStatus.NO_CONTENT)
public
void updatePhotoContribution(
        @PathVariable("id") final Long id,
        @RequestParam(required = false) Set<Long> elementIdsToAdd,
        @RequestPart(required = false) List<MultipartFile> elementsToAdd,
        @RequestPart(required = false) List<MultipartFile> newElementsToAdd,
        @RequestParam(required = false) Set<Long> idsToUpdate,
        @RequestPart(required = false) List<MultipartFile> elementsToUpdate,
        @RequestParam(required = false) Set<Long> idsToDelete,
        @RequestParam final Set<String> sources,
        @RequestParam(required = false) final String comment
) {
    Set<String> ids = new HashSet<>();

    for(files) {
        String id = this.storageService.save(...); // Save the file in the cloud with file identifiers stored in the cloud
        ids.add(id);
    }

    Contribution contribution = //create contribution

    try {
        this.movieContributionPersistenceService.updateReviewContribution(contribution, id, this.authorizationService.getUserId());
    } catch(ResourceNotFoundException e) {
        //  remove the file from the cloud
        throw new ResourceNotFoundException(e.getMessage());
    } catch(ResourceConflictException e) {
        //  remove the file from the cloud
        throw new ResourceConflictException(e.getMessage());
    }
}

这是我遇到的问题的唯一解决方案。如果我在movieContributionPersistenceService中使用storageService，它看起来会更好，但我坚持我只在服务上使用存储库的事实。您对此有何看法？
这是我之前基于相同原理创建的另一个控制器：https://pastebin.com/Ry1gcYdL