如何更改 svcutil.exe 生成的 类 中的 xsd:date 格式

Question

我从 .wsdl 文件生成了 C# 类，它可以工作。但我有以下问题。响应中的服务格式 xsd:date 类型不正确。示例：

<date xsi:type="xsd:date">2016-01-27 14:20:30</date>

但应该是其中之一：

<date xsi:type="xsd:date">2016-01-27</date>  
<date xsi:type="xsd:dateTime">2016-01-27T14:20:30</date>

因此我得到了例外

Unhandled Exception: System.ServiceModel.CommunicationException: Error in deserializing body of reply message for operation 'createVacature'. ---> System.InvalidOperationException: There is an error in XML document (2, 646). ---> System.FormatException: String was not recognized as a valid DateTime.

如何覆盖日期解析？或者有什么其他方法可以修复吗？在没有 svcutil.exe 的情况下手动实施所有这些将是矫枉过正的。

Answer 1

这是我的解决方案。我在解析之前拦截服务响应并手动编辑它。

这是日期修复功能：

public class MessageDateFixer : IClientMessageInspector
{
    public object BeforeSendRequest(ref Message request, IClientChannel channel)
    {
        return null;
    }

    public void AfterReceiveReply(ref Message reply, object correlationState)
    {
        XmlDocument document = new XmlDocument();
        MemoryStream memoryStream = new MemoryStream();
        XmlWriter xmlWriter = XmlWriter.Create(memoryStream);
        reply.WriteMessage(xmlWriter);
        xmlWriter.Flush();
        memoryStream.Position = 0;
        document.Load(memoryStream);

        FixMessage(document);

        memoryStream.SetLength(0);
        xmlWriter = XmlWriter.Create(memoryStream);
        document.WriteTo(xmlWriter);
        xmlWriter.Flush();
        memoryStream.Position = 0;
        XmlReader xmlReader = XmlReader.Create(memoryStream);
        reply = Message.CreateMessage(xmlReader, int.MaxValue, reply.Version);
    }

    private static void FixMessage(XmlDocument document)
    {
        FixAllNodes(document.ChildNodes);
    }

    private static void FixAllNodes(XmlNodeList list)
    {
        foreach (XmlNode node in list)
        {
            FixNode(node);
        }
    }

    private static void FixNode(XmlNode node)
    {
        if (node.Attributes != null &&
            node.Attributes["xsi:type"] != null)
        {
            if (node.Attributes["xsi:type"].Value == "xsd:date")
            {
                node.Attributes["xsi:type"].Value = "xsd:dateTime";
                node.InnerXml = node.InnerXml.Replace(" ", "T");
            }
        }

        FixAllNodes(node.ChildNodes);
    }
}

这里是辅助class:

public class DateFixerBehavior : IEndpointBehavior
{
    public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
    {
        clientRuntime.MessageInspectors.Add(new MessageDateFixer());
    }

    public void Validate(ServiceEndpoint endpoint)
    {

    }

    public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
    {

    }

    public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
    {

    }
}

用法如下：

PosterToolClient poster = new PosterToolClient();
poster.Endpoint.Behaviors.Add(new DateFixerBehavior());