"Ожидается конец элемента 'jsonCalendarItems' из пространства имен '. Найден элемент' item 'из пространства имен' ' - PullRequest
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"Ожидается конец элемента 'jsonCalendarItems' из пространства имен '. Найден элемент' item 'из пространства имен' '

2 голосов
/ 08 июня 2011

Я получаю странную ошибку и не могу понять проблему. Я отправляю массив объектов в мой сервис wcf в формате json. 

   var calendarItemsString = JSON.stringify(calendarItems);
            $.ajax({
                    cache: false,
                    async: true,
                    url: 'webService.svc/SaveCalendarItems',
                type: "POST",
                dataType: "json",
                contentType: "application/json; charset=utf-8",
                data: '{"jsonCalendarItems": ' + calendarItemsString + '}',
                success: function () {
                    alert('Save was performed.');
                },
                error: onPageError
               });

Ниже отправляемое сообщение, оно действительно в формате JSON. 

{
"jsonCalendarItems": [
    {
        "ImageId": 119,
        "Image": {
            "Id": 119,
            "Big": "Apple.jpg",
            "SmallThumbnail": "Apple.jpg",
            "Thumbnail": "Apple.jpg",
            "Full": "Apple.jpg",
            "Name": "apple"
        },
        "YearMonth": "2011-01-01T00:00:00.000Z"
    },
    {
        "ImageId": 366,
        "Image": {
            "Id": 366,
            "Big": "BabyWateringCan.jpg",
            "SmallThumbnail": "BabyWateringCan.jpg",
            "Thumbnail": "BabyWateringCan.jpg",
            "Full": "BabyWateringCan.jpg",
            "Name": "BabyWateringCan"
        },
        "YearMonth": "2011-02-01T00:00:00.000Z"
    },
    {
        "ImageId": 368,
        "Image": {
            "Id": 368,
            "Big": "BarBell.jpg",
            "SmallThumbnail": "BarBell.jpg",
            "Thumbnail": "BarBell.jpg",
            "Full": "BarBell.jpg",
            "Name": "BarBell"
        },
        "YearMonth": "2011-03-01T00:00:00.000Z"
    },
    {
        "ImageId": 66,
        "Image": {
            "Id": 66,
            "Big": "Bauble.jpg",
            "SmallThumbnail": "Bauble.jpg",
            "Thumbnail": "Bauble.jpg",
            "Full": "Bauble.jpg",
            "Name": "bauble"
        },
        "YearMonth": "2011-03-31T23:00:00.000Z"
    },
    {
        "ImageId": 116,
        "Image": {
            "Id": 116,
            "Big": "Coffee Cup.jpg",
            "SmallThumbnail": "Coffee Cup.jpg",
            "Thumbnail": "Coffee Cup.jpg",
            "Full": "Coffee Cup.jpg",
            "Name": "coffee cup"
        },
        "YearMonth": "2011-04-30T23:00:00.000Z"
    },
    {
        "ImageId": 115,
        "Image": {
            "Id": 115,
            "Big": "Clouds.jpg",
            "SmallThumbnail": "Clouds.jpg",
            "Thumbnail": "Clouds.jpg",
            "Full": "Clouds.jpg",
            "Name": "clouds"
        },
        "YearMonth": "2011-05-31T23:00:00.000Z"
    },
    {
        "ImageId": 73,
        "Image": {
            "Id": 73,
            "Big": "Champagne.jpg",
            "SmallThumbnail": "Champagne.jpg",
            "Thumbnail": "Champagne.jpg",
            "Full": "Champagne.jpg",
            "Name": "champagne"
        },
        "YearMonth": "2011-06-30T23:00:00.000Z"
    },
    {
        "ImageId": 69,
        "Image": {
            "Id": 69,
            "Big": "Bubbles.jpg",
            "SmallThumbnail": "Bubbles.jpg",
            "Thumbnail": "Bubbles.jpg",
            "Full": "Bubbles.jpg",
            "Name": "bubbles"
        },
        "YearMonth": "2011-07-31T23:00:00.000Z"
    },
    {
        "ImageId": 297,
        "Image": {
            "Id": 297,
            "Big": "DivingBoard.jpg",
            "SmallThumbnail": "DivingBoard.jpg",
            "Thumbnail": "DivingBoard.jpg",
            "Full": "DivingBoard.jpg",
            "Name": "DivingBoard"
        },
        "YearMonth": "2011-08-31T23:00:00.000Z"
    },
    {
        "ImageId": 298,
        "Image": {
            "Id": 298,
            "Big": "Duckweed.jpg",
            "SmallThumbnail": "Duckweed.jpg",
            "Thumbnail": "Duckweed.jpg",
            "Full": "Duckweed.jpg",
            "Name": "Duckweed"
        },
        "YearMonth": "2011-09-30T23:00:00.000Z"
    },
    {
        "ImageId": 78,
        "Image": {
            "Id": 78,
            "Big": "Easter Egg Card.jpg",
            "SmallThumbnail": "Easter Egg Card.jpg",
            "Thumbnail": "Easter Egg Card.jpg",
            "Full": "Easter Egg Card.jpg",
            "Name": "easter egg card"
        },
        "YearMonth": "2011-11-01T00:00:00.000Z"
    },
    {
        "ImageId": 106,
        "Image": {
            "Id": 106,
            "Big": "Fireworks.jpg",
            "SmallThumbnail": "Fireworks.jpg",
            "Thumbnail": "Fireworks.jpg",
            "Full": "Fireworks.jpg",
            "Name": "fireworks"
        },
        "YearMonth": "2011-12-01T00:00:00.000Z"
    }
] }

Вот метод wcf 

    <OperationContract(), WebInvoke(Method:="POST", BodyStyle:=WebMessageBodyStyle.WrappedRequest, RequestFormat:=WebMessageFormat.Json), WebMethod(EnableSession:=True)>
Public Sub SaveCalendarItems(ByVal jsonCalendarItems As String)
    Dim _calenderItems As List(Of CalenderItem) = HttpContext.Current.Session("calenderItems")
    _calenderItems = Newtonsoft.Json.JsonConvert.DeserializeObject(Of List(Of CalenderItem))(jsonCalendarItems)
    HttpContext.Current.Session("calenderItems") = _calenderItems
End Sub

И, наконец, сообщение об ошибке 

{
"ExceptionDetail": {
    "HelpLink": null,
    "InnerException": {
        "HelpLink": null,
        "InnerException": {
            "HelpLink": null,
            "InnerException": null,
            "Message": "End element 'jsonCalendarItems' from namespace '' expected. Found element 'item' from namespace ''.",
            "StackTrace": "   at System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, String res, String arg1, String arg2, String arg3)\r\n   at System.Xml.XmlExceptionHelper.ThrowEndElementExpected(XmlDictionaryReader reader, String localName, String ns)\r\n   at System.Xml.XmlBaseReader.ReadEndElement()\r\n   at System.Xml.XmlBaseReader.ReadElementContentAsString()\r\n   at System.Runtime.Serialization.XmlReaderDelegator.ReadElementContentAsString()\r\n   at System.Runtime.Serialization.Json.JsonStringDataContract.ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)\r\n   at System.Runtime.Serialization.Json.JsonDataContract.ReadJsonValue(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)\r\n   at System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName)\r\n   at System.Runtime.Serialization.XmlObjectSerializer.InternalReadObject(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)\r\n   at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)",
            "Type": "System.Xml.XmlException"
        },
        "Message": "There was an error deserializing the object of type System.String. End element 'jsonCalendarItems' from namespace '' expected. Found element 'item' from namespace ''.",
        "StackTrace": "   at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)\r\n   at System.Runtime.Serialization.Json.DataContractJsonSerializer.ReadObject(XmlDictionaryReader reader, Boolean verifyObjectName)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part)",
        "Type": "System.Runtime.Serialization.SerializationException"
    },
    "Message": "The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter :jsonCalendarItems. The InnerException message was 'There was an error deserializing the object of type System.String. End element 'jsonCalendarItems' from namespace '' expected. Found element 'item' from namespace ''.'.  Please see InnerException for more details.",
    "StackTrace": "   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameters(XmlDictionaryReader reader, PartInfo[] parts, Object[] parameters, PartInfo returnInfo, Object& returnValue)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBodyCore(XmlDictionaryReader reader, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.DemultiplexingDispatchMessageFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.UriTemplateDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.CompositeDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)",
    "Type": "System.ServiceModel.Dispatcher.NetDispatcherFaultException"
},
"ExceptionType": "System.ServiceModel.Dispatcher.NetDispatcherFaultException",
"Message": "The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter :jsonCalendarItems. The InnerException message was 'There was an error deserializing the object of type System.String. End element 'jsonCalendarItems' from namespace '' expected. Found element 'item' from namespace ''.'.  Please see InnerException for more details.",
"StackTrace": "   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameters(XmlDictionaryReader reader, PartInfo[] parts, Object[] parameters, PartInfo returnInfo, Object& returnValue)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBodyCore(XmlDictionaryReader reader, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)\r\n   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.DemultiplexingDispatchMessageFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.UriTemplateDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.CompositeDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)\r\n   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)\r\n   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)"

}

Кто-нибудь получит какие-либо идеи относительно того, что означает эта ошибка?

Обновление:

SeviceModel 

 <system.serviceModel>
<behaviors>
  <endpointBehaviors>
    <behavior name="PhotoCreator.HelloWorldServiceAspNetAjaxBehavior">
      <enableWebScript />
    </behavior>
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior name="PhotoCreator.HelloWorldServiceAspNetAjaxBehavior">
      <serviceMetadata httpGetEnabled="true" />
      <serviceDebug includeExceptionDetailInFaults="true" />
    </behavior>
    <behavior name="">
      <serviceMetadata httpGetEnabled="true" />
      <serviceDebug includeExceptionDetailInFaults="true" />
    </behavior>
  </serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
  multipleSiteBindingsEnabled="true" />
<services>
  <service behaviorConfiguration="PhotoCreator.HelloWorldServiceAspNetAjaxBehavior"
    name="PhotoCreator.WebService">
    <endpoint address="" behaviorConfiguration="PhotoCreator.HelloWorldServiceAspNetAjaxBehavior"
      binding="webHttpBinding" bindingConfiguration="LargeString"
      contract="PhotoCreator.WebService" />
    <endpoint address="mex" binding="mexHttpBinding" contract="PhotoCreator.WebService" />
  </service>
</services>
<bindings>
  <webHttpBinding>
    <binding name="LargeString" maxReceivedMessageSize="1000000">
      <readerQuotas maxStringContentLength="16000" />
      <security mode="None" />
    </binding>
  </webHttpBinding>
  <wsHttpBinding>
    <binding name="mexBinding" maxReceivedMessageSize="5000000">
      <security mode="None" />
    </binding>
  </wsHttpBinding>
</bindings>

1 Ответ

4 голосов
/ 08 июня 2011

Проблема заключается в том, что ваша операция ожидает параметр String (т. Е. Строку JSON), но значение jsonCalendarItems является массивом.Вы можете либо создать класс для представления элементов массива и изменить тип параметра на массив этого класса, либо преобразовать массив JSON в строку (что можно сделать, вызвав JSON.stringify снова ).на calendarItemsString)

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