jQuery Ajax 调用返回 JSON 字符串而不是对象数组

Question

我正在从数据库中获取数据并将 ASP.NET MVC 视图页面中的数据显示为 table 格式。下面是 Ajax 调用。我将 return 数据作为 JSON 字符串获取。我不确定为什么。对于所有视图页面，我得到的是 JSON Object.

虽然值进入 JSON 字符串，但我正在尝试使用 "JSON.parse(jsonData)" 转换为 JSON 对象。它在我的本地工作得很好。当我在 Stage 中部署代码时。该行在 Json Parse.

处断开

为什么我会收到此错误。代码中有什么工作吗？

JSON 字符串：

[{"SuppNum":null,"Documentumid":"090111738011c814:Supplier Needful Info.xlsx:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","DocDescription":"Paper Agreement","CreateDate":"05/11/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"40","AttachmentFilename":"Supplier Needful Info","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"PII Paper Agreement                               ","ContentType":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},{"SuppNum":null,"Documentumid":"090111738011c2c2:WP_SQL_Query1.pdf:application/pdf","DocDescription":"Expense Report","CreateDate":"05/14/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"27","AttachmentFilename":"WP_SQL_Query1","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"Expense                                           ","ContentType":"application/pdf"},{"SuppNum":null,"Documentumid":"090111738011c2cc:UiPath-Level1_Certificate.pdf:applicat    ion/pdf","DocDescription":"Paper DOC","CreateDate":"05/14/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"40","AttachmentFilename":"UiPath-Level1_Certificate","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"PII Paper Agreement                               ","ContentType":"application/pdf"},{"SuppNum":null,"Documentumid":"090111738011c2e9:Communication Plan 865944.docx:application/vnd.openxmlformats-officedocument.wordprocessingml.document","DocDescription":"DOCS","CreateDate":"05/16/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"1","AttachmentFilename":"Communication Plan 865944","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"Insurance Documents                               ","ContentType":"application/vnd.openxmlformats-officedocument.wordprocessingml.document"},{"SuppNum":null,"Documentumid":"090111738011c2ea:Communication Plan 865944.docx:application/vnd.openxmlformats-officedocument.wordprocessingml.docum    ent","DocDescription":"Amedments","CreateDate":"05/17/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"20","AttachmentFilename":"Communication Plan 865944","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"Amendment                                         ","ContentType":"application/vnd.openxmlformats-officedocument.wordprocessingml.document"},{"SuppNum":null,"Documentumid":"090111738011c310:How to attach in OSA.pdf:application/pdf","DocDescription":"","CreateDate":"05/18/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"32","AttachmentFilename":"How to attach in OSA","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"EVP Attachment                                    ","ContentType":"application/pdf"},{"SuppNum":null,"Documentumid":"090111738011c2ec:WP_SQL_Query1.pdf:application/pdf","DocDescription":"","CreateDate":"05/18/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"27","AttachmentFi    lename":"WP_SQL_Query1","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"Expense                                           ","ContentType":"application/pdf"},{"SuppNum":null,"Documentumid":"090111738011c2ed:SyamOld_Passport.pdf:application/pdf","DocDescription":"","CreateDate":"05/18/2019","Userid":null,"LastChnageDate":null,"LastChnageUserid":null,"DocTypeCode":"27","AttachmentFilename":"SyamOld_Passport","ExpirtyDate":null,"IsDeleted":null,"DocTypeCodeDescription":"Expense                                           ","ContentType":"application/pdf"}]

AJAX 呼叫：

$("#btnVendorSearch").click(function() {
if (RequiredFieldValidate() != false) {
    var SupplierNumber = $('#txtVendorNumber').val();
    $.ajax({
        type: "POST",
        url: getExactPath('/Supplier/GetSupDocuments'),
        async: false,
        data: {
            SupplierNo: SupplierNumber
        },
        dataType: 'Json',
        success: function(jsonData) {    
            var jsonobj = JSON.parse(jsonData);
            if (jsonobj.error == "" || jsonobj.error == undefined) {
                FillGrid(jsonobj);
            } else {
                console.log(jsonobj.error);
            }
        },
        error: function() {
            alert("Unable to fetch the data");
        }});}});

控制器方法：

public JsonResult GetSupDocuments(string SupplierNo) {
    string Error = "";
    DocumentumUtil dUtil = new DocumentumUtil();
    List < Attachment > AttachmentDetails = new List < Attachment > ();
    try {
    AttachmentDetails = dUtil.GetSupplierAttachments(SupplierNo);
    return this.Json(AttachmentDetails);
    } catch (System.Exception ex) {
        Error = ex.Message;
    }
    return this.Json(new {error = Error});
}

应该Return如下。请帮助我。

[object,object,object,object]

Answer 1

JSON 字符串正在分解为数组对象。

jQuery.parseJSON()

jQuery Ajax 调用返回 JSON 字符串而不是对象数组

jQuery Ajax call returning JSON string not as object array

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