如何在List请求体上应用@Validated？

Question

鉴于：

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
public class VocabularyRequest {
  @Null(groups = CollectionCreation.class)
  @NotNull(groups = VocabularyCreation.class)
  private Long collectionId;

  @Valid private List<MeaningVariantRequest> meaningVariants;
}

这个

@Validated

有效：

  @PostMapping(consumes = APPLICATION_JSON_VALUE)
  @ResponseStatus(HttpStatus.CREATED)
  @Override
  public Mono<VocabularyResponse> create(
      @Validated(VocabularyCreation.class) @RequestBody VocabularyRequest request) {
    return super.create(request);
  }

但这（应用于

List

）不是：

  @PostMapping(value = "/bulk", consumes = APPLICATION_JSON_VALUE)
  @ResponseStatus(HttpStatus.CREATED)
  @Validated(VocabularyCreation.class)
  public Flux<VocabularyResponse> createBatch(
      @RequestBody List<@Valid VocabularyRequest> requests) {
    return service(VocabularyService.class).createBatch(requests);
  }

改成这样，还是不行：

  @PostMapping(value = "/bulk", consumes = APPLICATION_JSON_VALUE)
  @ResponseStatus(HttpStatus.CREATED)
  public Flux<VocabularyResponse> createBatch(
      @Validated(VocabularyCreation.class) @RequestBody List<VocabularyRequest> requests) {
    return service(VocabularyService.class).createBatch(requests);
  }

如果更改为

@RequestBody List<@Validated(VocabularyCreation.class) VocabularyRequest> requests

，则会出现编译错误：

'@Validated' not applicable to type use

如标题，有解决办法吗？感谢您的帮助！！

Answer 1

您需要创建

VocabularyBulkRequest

，其中包含

VocabularyRequest

列表。

它会改变你的 API，但是将列表放在顶层无论如何都是不好的做法。