我有一个包含复选框和输入字段的表单，点击Submit按钮可以理想地将内容值添加到SP列表中。

当我运行调试器时，我可以看到每个输入（选中项，文本输入等）都被传递到AddItemToSplist中，但是当我打开Network选项卡时，我会看到以下错误:“value:”当尝试读取属性值时，从JSON读取器读取了类型为'StartArray'的节点； 但是，需要“PrimitiveValue”或“StartObject”节点。“

我怀疑我的Ajax块（可能是url）中有问题，但我不能百分之百确定。

有什么想法吗？

JS代码:

  handleClick() {
    let specialtiesArr = [],
        regionsArr = [],
        commentsArr = [],
        nameArr = [];
    
    $(".check-spec:checked").each(function() {
        specialtiesArr.push($(this).val());
    })

    $(".check-region:checked").each(function() {
        regionsArr.push($(this).val());
    })

    commentsArr.push($('.request-text-area').val());
    nameArr.push($('.submitter-name').val());

    addItemToSPList(specialtiesArr, regionsArr, commentsArr, nameArr)
  }

} // export default class closing bracket

  function addItemToSPList(getSpecialties, getRegions, getComments, getSubmitterName) {
        let specialistRequestsColumns = {
            "__metadata":{"type": "SP.Data.Specialist_x0020_RequestsListItem"},
            "Title": "No Title", // marked it as "not required" in the SP list backend
            "Specialties": { '__metadata': { 'type' : 'Collection(Edm.String)'}, results: getSpecialties }, // multi-select checkboxes
            "Regions": { '__metadata': { 'type' : 'Collection(Edm.String)'}, results: getRegions }, // multi-select checkboxes
            "Comments": getComments, // text box
            "Submitter_x0020_Name": getSubmitterName // input field
        }
    
        let listName = "Specialist%20Requests";
        $.ajax({
            url: `${_globalUrl}/redacted/_api/web/lists/getByTitle('${listName}')/items`, // ?$select=ListItemEntityTypeFullName
            method: "POST", // type
            async: false,
            contentType: "application/json;odata=verbose",
            data: JSON.stringify(specialistRequestsColumns),
            xhrFields: {
                withCredentials: true
            },
            headers: {
                "Accept": "application/json;odata=verbose",
                "content-type": "application/json;odata=verbose",
                "X-RequestDigest": $("#__REQUESTDIGEST").val()
            },
            success: data => {
                console.log("upload successful")
                // console.log(data)
            },error: (err) => {
                console.log("Error: " + err);
            }
        })
    }