“End element'jsonCalendarItems'from namespace''expected。Found names'item'from namespace''

我收到了一个奇怪的错误，我找不到问题，我发送了一个对象数组给我JSON格式WCF服务。“End element'jsonCalendarItems'from namespace''expected。Found names'item'from namespace''

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 
       });

下面是正在发送的帖子，它是有效的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" 
    } 
] }

这里是WCF方法

<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

最后的错误信息

{ 
"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)"

}

得到任何人的任何想法，这个错误是什么意思？

更新：

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>

来源

2011-06-08 cja100

当您将'BodyStyle'参数移除到您的'WebInvoke'属性时会发生什么？只是初步的猜测。 – 2011-06-08 11:31:01

给出相同的错误。 – cja100 2011-06-08 12:47:06

你可以包含你的web.config的serviceModel部分吗？ – 2011-06-08 14:51:42

的问题是，你的操作期待一个字符串参数（即JSON字符串），但jsonCalendarItems的价值是一个数组。您可以创建一个类来表示数组项并将参数类型更改为该类的数组，或者可以将JSON数组转换为字符串（可以通过在calendarItemsString上再次调用JSON.stringify ）来完成

来源

2011-06-08 16:50:09 carlosfigueira

使用JSON.stringify第二次，它的工作感谢。 – cja100 2011-06-09 14:11:02

“End element'jsonCalendarItems'from namespace''expected。Found names'item'from namespace''

回答

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