我在从 jQuery DataTables.Net ajax POST 调用到我的 WCF 服务 (4.0) 服务中获取有效 json 时遇到问题。我尝试了很多组合，但无法将这些aoData值传递给我的服务。
[Apols 有这么多代码……我想我最好把我能想到的都贴上去！]
这是来自 IE F12 调试的调用：
Key Value
Request POST /CustomerService.svc/json/GetCustomerDataTable HTTP/1.1
Accept application/json, text/javascript, */*; q=0.01
Content-Type application/json; charset=utf-8
Referer http://localhost:51901/Home/ListCustomers
Accept-Language en-gb
Accept-Encoding gzip, deflate
User-Agent Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
Host localhost:51900
Content-Length 1651
Connection Keep-Alive
Cache-Control no-cache
和请求正文
"{ jsonAOData : [{"name":"sEcho","value":1},{"name":"iColumns","value":7},{"name":"sColumns","value":""},{"name":"iDisplayStart","value":0},{"name":"iDisplayLength","value":10},{"name":"mDataProp_0","value":"CustomerNumber"},{"name":"mDataProp_1","value":"FirstName"},{"name":"mDataProp_2","value":"FamilyName"},{"name":"mDataProp_3","value":"MobileNumber"},{"name":"mDataProp_4","value":"CustomerIdNumber"},{"name":"mDataProp_5","value":"CustomerIdType"},{"name":"mDataProp_6","value":"DateOfBirth"},{"name":"sSearch","value":""},{"name":"bRegex","value":false},{"name":"sSearch_0","value":""},{"name":"bRegex_0","value":false},{"name":"bSearchable_0","value":true},{"name":"sSearch_1","value":""},{"name":"bRegex_1","value":false},{"name":"bSearchable_1","value":true},{"name":"sSearch_2","value":""},{"name":"bRegex_2","value":false},{"name":"bSearchable_2","value":true},{"name":"sSearch_3","value":""},{"name":"bRegex_3","value":false},{"name":"bSearchable_3","value":true},{"name":"sSearch_4","value":""},{"name":"bRegex_4","value":false},{"name":"bSearchable_4","value":true},{"name":"sSearch_5","value":""},{"name":"bRegex_5","value":false},{"name":"bSearchable_5","value":false},{"name":"sSearch_6","value":""},{"name":"bRegex_6","value":false},{"name":"bSearchable_6","value":false},{"name":"iSortCol_0","value":0},{"name":"sSortDir_0","value":"asc"},{"name":"iSortingCols","value":1},{"name":"bSortable_0","value":true},{"name":"bSortable_1","value":true},{"name":"bSortable_2","value":true},{"name":"bSortable_3","value":true},{"name":"bSortable_4","value":true},{"name":"bSortable_5","value":false},{"name":"bSortable_6","value":false}]}"
这给出了错误：
There was an error deserializing the object of type System.String. The token 'null' was expected but found 'name'.
我尝试了各种构建方式，data: '"{ jsonAOData : ' + jsonAOData + '}"',但还没有找到任何有效的组合。
我已经浏览了很多关于 SO 的东西，但还没有找到解决方案。
注意：
如果我发送：
data: '{ "jsonAOData" : "' + 'BOBBLE' + '"}',
然后我得到了错误：
There was an error deserializing the object of type System.String. End element 'root' from namespace '' expected. Found element 'jsonAOData' from namespace ''.
TBH：我不知道这意味着什么！这是一个字符串，而不是 XML，所以它为什么要寻找“根”——此外，我想要 jsonAOData，不是吗？
注意
如果我用相同的调用（只是不同的 URI）调用我的 MVC3 控制器，那么它会按预期工作并且我的 jsonAOData 字符串是否正确传递？
代码
[ServiceContract]
public interface ICustomerService
{
[OperationContract]
[WebInvoke(Method="POST",
BodyStyle= WebMessageBodyStyle.Bare,
RequestFormat=WebMessageFormat.Json,
ResponseFormat=WebMessageFormat.Json,
UriTemplate = "GetCustomerDataTable")]
string GetCustomerDataTable(string jsonAOData);
}
-
public string GetCustomerDataTable(string jsonAOData)
{
var log = LogManager.GetLogger
//Code omitted for brevity...
var result = serializer.Serialize(jsonDataTable);
return result;
}
-
$(document).ready(function () {
jQuery.support.cors = true; // cross site
var dt = $('#dataTable').dataTable({
"bProcessing": true,
"bSort": true,
"bServerSide": true,
//"sAjaxSource": "JsonSearch", //Call to MVC controller...works as expected
"sAjaxSource": "http://localhost:51900/CustomerService.svc/json/GetCustomerDataTable",
"sServerMethod": "POST",
"fnServerData": function (sSource, aoData, fnCallback) {
var jsonAOData = JSON.stringify(aoData);
//alert(jsonAOData);
$.ajax({
dataType: 'json',
crossDomain: true,
contentType: "application/json; charset=utf-8",
type: "POST",
url: sSource,
data: '"{ jsonAOData : ' + jsonAOData + '}"', //I have tried many combinations of this!
dataType: "json",
success: function (data) {
//alert('success');
fnCallback($.parseJSON(data));
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert("Status: " + XMLHttpRequest.status + "\r\n" + textStatus + "\r\n" + errorThrown);
}
});
},
"aoColumnDefs": [
{ "aTargets": [0], "sTitle": "Customer Number", "mData": "CustomerNumber", "bSearchable": true, "bSortable": true },
{ "aTargets": [1], "sTitle": "First Name", "mData": "FirstName", "bSearchable": true, "bSortable": true },
{ "aTargets": [2], "sTitle": "Family Name", "mData": "FamilyName", "bSearchable": true, "bSortable": true },
{ "aTargets": [3], "sTitle": "Mobile Number", "mData": "MobileNumber", "bSearchable": true, "bSortable": true },
{ "aTargets": [4], "sTitle": "Customer Id", "mData": "CustomerIdNumber", "bSearchable": true, "bSortable": true },
{ "aTargets": [5], "sTitle": "Id Type", "mData": "CustomerIdType", "bSearchable": false, "bSortable": false },
{ "aTargets": [6], "sTitle": "Date Of Birth", "mData": "DateOfBirth", "bSearchable": false, "bSortable": false },
],
"sScrollY": "500",
"bScrollCollapse": true
});
dt.fnSetFilteringDelay(1000);
});
-
<system.serviceModel>
<bindings>
<webHttpBinding>
<binding name="jsonCustomerServiceBinding" maxBufferSize="26214400"
maxReceivedMessageSize="26214400" />
</webHttpBinding>
</bindings>
<services>
<service name="Ibq.WcfService.CustomerService">
<endpoint address="json" behaviorConfiguration="json" binding="webHttpBinding"
bindingConfiguration="jsonCustomerServiceBinding" name="jsonCustomerService"
contract="Ibq.WcfService.ICustomerService" kind="webHttpEndpoint"
endpointConfiguration="" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:51900/" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="json">
<webHttp helpEnabled="true" defaultOutgoingResponseFormat="Json"
faultExceptionEnabled="false"/>
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="false" />
</system.serviceModel>