数据表 Ajax url 未命中控制器操作
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【中文标题】数据表 Ajax url 未命中控制器操作【英文标题】：Data tables Ajax url not hitting Controller action 【发布时间】：2021-11-13 05:58:34 【问题描述】：我有点沮丧，同样的代码在我的项目的其他地方也可以使用。由于某种原因，它没有击中控制器动作。当页面加载时，数据表出现并且只有处理弹出窗口，就像它找不到记录一样。我在控制器动作上放了一个断点，发现它甚至没有命中它。
javascript 代码：
$(document).ready(function ()
var oTableMenuPermission = "";
$("#PartsListTable").dataTable(
"ajax":
"url": "/Home/GetList",
"type": "POST",
"datatype": "json",
,
"responsive": true,
"bRetrieve": true,
"bProcessing": true,
"deferRender": true,
"dom": 'lBfrtip',
"serverSide": "true",
"order": [0, "PartNumber"],
"language":
"processing": "processing...Please wait"
,
"buttons": [
extend: 'copyhtml5', exportOptions: columns: ':visible'
, extend: 'excelHtml5', exportOptions: columns: ':visible'
, extend: 'csvHtml5', exportOptions: columns: ':visible'
, extend: 'pdfHtml5', exportOptions: columns: ':visible'
, extend: 'print', exportOptions: columns: ':visible'
, 'colvis'
],
columnDefs: [ orderable: false, targets: [2, 3, 4, 5, 6] ],
"aoColumns": [
"data": "PartNumber", "name": "PartNumber" ,
"data": "PartImage", "aTargets": [0],
"render": function (data)
if (data === null) return '<img src=Content/Images/Parts/NoImage.png style="width:50px;" />';
return '<img src=Content/Images/Parts/' + data + ' class="zoom" style="width:50px;" />';
,
"data": "Description", "name": "Description" ,
"data": "HasUpgrade", "aTargets": [0],
"render": function (data)
if (data === true)
return '<b style="color:green;">Yes</b>';
else
return '<b style="color:red;">No</b>';
,
"data": "IsUpgrade", "aTargets": [0],
"render": function (data)
if (data === true)
return '<b style="color:green;">Yes</b>';
else
return '<b style="color:red;">No</b>';
,
"mRender": function (oObj, type, full)
var button = '<div>'
button += '<div class="btn-group">';
button += '<a class="btn btn-warning btn-sm" href="' + ControlerNameParts + "/Details/" + full.Material + '" data-ajax-update="#SkEdit" data-ajax-success="openModalDialog(\'SkEdit\', \'Edit\')" data-ajax-mode="replace" data-ajax-method="GET" data-ajax-failure="clearModalDialog(\'SkEdit\');alert(\'Ajax call failed\')" data-ajax-begin="prepareModalDialog(\'SkEdit\')" data-ajax="true">Details</a> ';
button += '</div></div>';
return button;
,
],
);
);
这里是控制器动作：
[HttpPost]
public ActionResult GetList()
// Server Side Parameters
int start = Convert.ToInt32(Request["start"]);
int length = Convert.ToInt32(Request["length"]);
string searchValue = Request["search[value]"];
string sortColumnName = Request["column[" + Request["order[0][column]"] + "][name]"];
string sortDirection = Request["order[0][dir]"];
List<PartSearchView> prodList = new List<PartSearchView>();
using (GeneralEntities db = new GeneralEntities())
prodList = db.PartSearchView.ToList();
int totalRows = prodList.Count;
if (!string.IsNullOrEmpty(searchValue))
prodList = prodList.Where(x => x.PartNumber != null && x.PartNumber.ToLower().Contains(searchValue.ToLower())).ToList();
int totalRowsAfterFilteing = prodList.Count;
// Sorting
prodList = prodList.OrderBy(sortColumnName + " " + sortDirection).ToList<PartSearchView>();
prodList = prodList.Skip(start).Take(length).ToList();
return Json(new data = prodList, draw = Request["draw"], recordsTotal = totalRows, recordsFiltered = totalRowsAfterFilteing , JsonRequestBehavior.AllowGet);
我已尝试将url 更改为@Url.Action("GetList", "Home")。
这可能与路由有关，但我在路由配置中看不到任何有问题的地方。 我尝试直接转到 URL，它会拉出一个 404 页面，这与正在运行的页面不同，它会出错但也会触发控制器操作。
感谢您的帮助！
更新：
以下是我的路线配置。我将页面名称和控制器操作更改为PartSearch，之前它只是Parts。还是同样的问题。这是 Home Controller 的一部分。
public static void RegisterRoutes(RouteCollection routes)
routes.IgnoreRoute("resource.axd/*pathInfo");
// routes.MapRoute(
// name: "Roles",
// url: "Roles/action/id",
// defaults: new controller = "UserAndRole", action = "Index", id = UrlParameter.Optional
//);
routes.MapRoute(
name: "About",
url: "About",
defaults: new controller = "Home", action = "About"
);
routes.MapRoute(
name: "Services",
url: "Services",
defaults: new controller = "Home", action = "Services"
);
routes.MapRoute(
name: "Contact",
url: "Contact",
defaults: new controller = "Home", action = "Contact"
);
routes.MapRoute(
name: "Quote",
url: "Quote",
defaults: new controller = "Home", action = "Quote"
);
routes.MapRoute(
name: "MyEquipment",
url: "MyEquipment/id",
defaults: new controller = "MyEquipment", action = "Index"
);
// routes.MapRoute(
// name: "PartsSearch",
// url: "Parts",
// defaults: new controller = "Home", action = "Parts"
//);
routes.MapRoute(
name: "MyEquipmentTlj",
url: "MyEquipment/Parts/id",
defaults: new controller = "MyEquipment", action = "Parts"
);
// routes.MapRoute(
// name: "Dashboard",
// url: "Dashboard/id",
// defaults: new controller = "Dashboard", action = "Index", page = UrlParameter.Optional
//);
routes.MapRoute(
name: "EquipCat",
url: "Equipment/Category/slug/Catid",
defaults: new controller = "Equipment", action = "Index", page = UrlParameter.Optional
);
routes.MapRoute(
name: "EquipTag",
url: "Equipment/Tag/slug/Tagid",
defaults: new controller = "Equipment", action = "Index", page = UrlParameter.Optional
);
routes.MapRoute(
name: "EquipPost",
url: "Equipment/Post/id/slug",
defaults: new controller = "Equipment", action = "Post"
);
routes.MapRoute(
name: "AddUsers",
url: "Users/Create/CompanyId/AddressId",
defaults: new controller = "Users", action = "Create"
);
routes.MapRoute(
name: "BestenAddUsers",
url: "UsersManager/Create/CompanyId/AddressId",
defaults: new controller = "UsersManager", action = "Create"
);
routes.MapRoute(
name: "AddMachines",
url: "Machine/Add/CompanyId/AddressId",
defaults: new controller = "Machine", action = "Add"
);
routes.MapRoute(
name: "EventManagerAdd",
url: "CalendarManager/Add/companyId/addressId",
defaults: new controller = "CalendarManager", action = "Add"
);
routes.MapRoute(
name: "ListAddresses",
url: "Addresses/id",
defaults: new controller = "Addresses", action = "Index"
);
routes.MapRoute(
name: "ListOrders",
url: "Orders/id",
defaults: new controller = "Orders", action = "Index"
);
routes.MapRoute(
name: "UserCreate",
url: "Users/create/CompanyId/AddressId",
defaults: new controller = "Users", action = "Create"
);
routes.MapRoute(
name: "NotesAdd",
url: "Notes/Add/CompanyId/AddressId",
defaults: new controller = "Notes", action = "Add"
);
routes.MapRoute(
name: "SerialAdd",
url: "SerialNumbers/AddSerial/SerialNumber/CompanyId/AddressId",
defaults: new controller = "SerialNumbers", action = "AddSerial"
);
routes.MapRoute(
name: "SerialSearch",
url: "SerialSearch",
defaults: new controller = "Home", action = "SerialSearch"
);
routes.MapRoute(
name: "ExpensesAdd",
url: "ExpenseReports/Create/CompanyId/AddressId",
defaults: new controller = "ExpenseReports", action = "Create"
);
routes.MapRoute(
name: "InvoiceList",
url: "Invoice/cmpid",
defaults: new controller = "Invoice", action = "Index"
);
routes.MapRoute(
name: "BInvoiceList",
url: "InvoiceManager/cmpid",
defaults: new controller = "InvoiceManager", action = "Index", cmpid = UrlParameter.Optional
);
routes.MapRoute(
name: "CInvoiceList",
url: "InvoiceManager/List/addid",
defaults: new controller = "InvoiceManager", action = "List"
);
routes.MapRoute(
name: "QuoteList",
url: "Quotes/cmpid",
defaults: new controller = "Quotes", action = "Index"
);
routes.MapRoute(
name: "PurchaseOrderAdd",
url: "PurchaseOrder/Add/id/RFQID",
defaults: new controller = "PurchaseOrder", action = "Add"
);
routes.MapRoute(
name: "Subjobs",
url: "SubJobs/id",
defaults: new controller = "SubJobs", action = "Index"
);
routes.MapRoute(
name: "BQuoteList",
url: "QuotePdfManager/cmpid",
defaults: new controller = "QuotePdfManager", action = "Index", cmpid = UrlParameter.Optional
);
routes.MapRoute(
name: "CQuoteList",
url: "QuotePdfManager/List/addid",
defaults: new controller = "QuotePdfManager", action = "List"
);
routes.MapRoute(
name: "ConfirmEmail",
url: "Account/SendEmailConfirm/UserName",
defaults: new controller = "Account", action = "SendEmailConfirm"
);
routes.MapRoute(
name: "ShippingAdd",
url: "ShippingOrBOLs/Add/companyId/addressId/orderId",
defaults: new controller = "ShippingOrBOLs", action = "Add"
);
routes.MapRoute(
name: "EventAdd",
url: "Calendar/companyId/addressId",
defaults: new controller = "Calendar", action = "Index"
);
routes.MapRoute(
name: "MessagesAdd",
url: "Messages/Add/user",
defaults: new controller = "Messages", action = "Add"
);
routes.MapRoute(
name: "PastDue",
url: "InvoiceManager/PastDue/id/pastdue",
defaults: new controller = "InvoiceManager", action = "PastDue"
);
routes.MapRoute(
name: "Default",
url: "controller/action/id",
defaults: new controller = "Home", action = "Index", id = UrlParameter.Optional
);
我更改了名称，因为我有一个 PartsController。 PartsController 用于后端，需要登录凭据。所以我不能用它来做这个。
更新：
我找到了我的问题。尽管这看起来很愚蠢，但它没有击中控制器的全部原因是因为在我有 columnDefs: [ orderable: false, targets: [2, 3, 4, 5, 6] ], 的那一行中，可能有 1 列，有 6 列，但我忘记将第一列计为 0。我有过去在使用foreach 语句而不是server side 时发现了这一点，因为格式不会出现在加载时 - 意思是按钮、搜索、记录数等。但仍会填充记录。在server side 中，我猜它在记录生成之前出现故障。所以它根本与路由无关。而我得到的错误，我认为它与它没有任何关系，因为它说明了一些关于风格的东西。我在dataTables 论坛上找到了答案。感谢所有为此提供帮助的人。
【问题讨论】：
“我试图直接转到 URL 并且它会拉出一个 404 页面” - 简而言之：您的 URL“/Home/GetList”返回 404 并且您的操作未被调用。如果您添加有关路由设置的信息，这将有所帮助（您帖子中的大多数其他代码都无助于解决此问题）。例如。 Startup.cs中的路由部分，控制器名称+控制器路由属性。 这可能会有所帮助：***.com/questions/28435734/… 这个 DataTables 选项看起来很奇怪："order": [0, "PartNumber"]。我希望它是"order": [0, "asc"] 或"order": [0, "desc"]。见here。
@andrewjames 是的，我不知道我为什么这样做，但它就像在另一个有效的页面中一样。自从我写代码以来已经有一段时间了。但你是对的，不应该那样。它可能只是在有效的代码中跳过它。这意味着它不会阻碍它，它只是没有排序。生病改变它，看看它是否有所作为。
你是对的：DataTables 倾向于忽略未知选项（并非总是如此，但经常如此）。因此，这不是解决您问题的方法，但应该予以纠正。
【参考方案1】：
您不需要 GetList 的发布操作，因为您不发送任何参数。删除 [post] 并仅用于测试尝试属性路由
在 IgnoreRoute 之后将此添加到您的配置中
routes.IgnoreRoute("resource.axd/*pathInfo");
routes.MapMvcAttributeRoutes();
和控制器
[Route("~/home/getlist")]
public ActionResult GetList()
恕我直言，在 ajax 中将“type”：“POST”转为“GET”。
【讨论】：
我之前确实在 Parts 下尝试过，但并没有什么不同。当我将其更改为 PartSearch 并删除 [HttpPost] 时，我可以导航到它并点击控制器。我只是在 chtml 视图 ajax 中将其更改为 GET。它仍然没有击中控制器。我按照你说的添加了到控制器的路由，仍然没有打到控制器，我可以直接去，但是ajax没有打到它。 注意：当你使用"serverSide": "true"时，参数是automatically sent从DataTable到服务器。这些用于使服务器知道如何执行排序、过滤和分页。但是，是的，话虽如此，这并不意味着您需要使用POST。你当然可以使用GET。
@ScottPurtan 很抱歉，零件与 getlist 有什么关系？你用什么网址直接去？
@serge 我之前有一个名为 Parts 的页面，我将其更改为 PartSearch。我使用 Url /Home/GetList 直接访问它。它确实会执行此操作，但也会出错，因为它正在寻找一个参数 - searchValue，它存在于数据表中，但如果您直接执行操作而不使用 chtml 页面来执行操作，则不会。我确实使用了 get，现在已将名称更改为 GetGrid。还是不行。
@ScottPurtan 很抱歉，我没有注意到您使用的是旧版本。我更新了我的答案。将属性路由添加到您的路由配置中。以上是关于数据表 Ajax url 未命中控制器操作的主要内容，如果未能解决你的问题，请参考以下文章
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