webapi端点未接收到整数数组值

Question

我正在尝试将整数数组值从angular 7应用程序传递到我的asp.net Web api端点。但是，端点参数为null。如果您在下面看到结果对象，则在插入之后结果对象将收到新创建的ID，并且我将该结果对象值传递给服务器端。我可以看到结果对象中填充了这些值。有人可以告诉我为什么端点不接收整数数组。到端点的请求看起来像这样

http://localhost:56888/api/documentupload/detailsByIds/121,124,125

角度端点调用

 public createDocument() {
        const documents: IDocumentDetails[] = this.files.map(doc => {
            return { // notice just a curly bracket, and in the same line with 'return'
                file: doc.fileDropEntry.fileEntry,
                documentTypeId: doc.selectedDocumentItem.Id,
                name: doc.name,
                documentDate: doc.selectedDate
            };
        });
        this.documents = { managerStrategyId: 0, documentDetails: null };
        this.documents.managerStrategyId = this.ManagerStrategyId;
        this.documents.documentDetails = documents;

        this.documentUploadService.createDocumentUpload(this.documents)
            .then((result) => {
                if (result) {
                    this.getDocumentUploadDetailsByIds(result);
                    this.setGridOptions();
                    this.setColumns();
                    this.notify.success('Documents uploaded Successfully');
                }
            }).catch(err => {
                this.notify.error('An Error Has Occured While uploading the documents');
            });
    }


    public getDocumentUploadDetailsByIds(id) {
        if (this.ManagerStrategyId != null) {
            this.Loading = true;

            this.initGrid();
            this.documentUploadService.getDocumentUploadDetailsByIds(id)
                .subscribe(data => {
                    this.DocumentUploadDetails = data;
                    this.Loading = false;
               },
                    err => {
                        this.Error = 'An error has occurred. Please contact BSG';
                    },
                    () => {
                    });
        }
    }

getDocumentUploadDetailsByIds(documentIds: number[]) {
                return this.mgr360CommonService.httpGet('/api/documentupload/detailsByIds/' + documentIds);
              }    

asp.net webapi

[HttpGet]
        [Route("api/documentupload/detailsByIds/{id}")]
        public IHttpActionResult DetailsByIds(int[] id)
        {
            var viewModel = GetDocumentUploadDetailsByIds(id);
            return Ok(viewModel);
        }

   private DocumentUploadViewModel GetDocumentUploadDetailsByIds(int[] id)
        {
            var docVM = new DocumentUploadViewModel();
            var docSvc = GetViewService<V_DOCUMENT>();
            var docs = docSvc.Where(x => id.Contains(x.ID)).ToList();


            if (docs != null)
            {
                docVM.DocumentEntities.AddRange(docs.Select(x => new DocumentUploadEntities()
                {
                    DocumentId = x.ID,
                    DocumentName = x.NAME,
                    DocumentTypeId = x.DOCUMENT_TYPE_ID,
                    DocumentTypeName = x.DOCUMENT_TYPE_NAME,
                    ManagerStrategyId = x.MANAGERSTRATEGY_ID,
                    ManagerStrategyName = x.STRATEGY_NAME,
                    DocumentDate = x.DOCUMENT_DATE.HasValue
                        ? x.DOCUMENT_DATE.Value.ToString("MMM dd, yyyy")
                        : string.Empty,
                }).OrderBy(x => x.DocumentCreated));
            }

            return docVM;
        }