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为具有“not blank”Uri模板的方法修改传入消息时出现异常

.net-4.0 wcf .net

ps. · 技术社区 · 14 年前

当我使用URItemplate修改web服务方法的传入消息时,出现以下异常,URItemplate不是空的。

System.IndexAutoFrangeException异常:索引超出数组的界限。在System.ServiceModel.Dispatcher系统服务模型乌里坦普尔先生ateDispatchFormatter.DeserializeRequest请求(消息,对象[]参数)位于System.ServiceModel.Dispatcher系统服务模型显示atchOperationRuntime.DeserializeInputs(MessageRpc&rpc)位于System.ServiceModel.Dispatcher系统服务模型显示atchOperationRuntime.InvokeBigin(消息RPC&rpc)在System.ServiceModel.Dispatcher系统服务模型.免疫tableDispatchRuntime.ProcessMessage5表(MessageRpc&rpc)位于System.ServiceModel.Dispatcher系统服务模型.免疫tableDispatchRuntime.ProcessMessage31(MessageRpc&rpc)位于System.ServiceModel.Dispatcher系统服务模型.MessageRpc.进程(布尔等操作上下文集)

所以它适用于

[WebInvoke(Method = "POST", UriTemplate = "/")]

[WebInvoke(Method = "PUT", UriTemplate = "/")]

但不是

[WebInvoke(Method = "PUT", UriTemplate = "/id")]

[WebInvoke(Method = "POST", UriTemplate = "/id ")]

下面是我如何修改消息的

        public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel, System.ServiceModel.InstanceContext instanceContext)
        {


            //get the request as xml
            string xml = request.ToString();

            if (!string.IsNullOrWhiteSpace(xml))
            {
                //create a new xml document
                XmlDocument doc = new XmlDocument();
                doc.LoadXml(xml);

                XElement xmlElement = XElement.Load(new XmlNodeReader(doc));
                XDocument sortedXml = new XDocument();
                XElement root = new XElement(xmlElement.Name);
                sortedXml.Add(root);

                Sort2(xmlElement, root);

                request = Message.CreateMessage(request.Version, null, new SimpleMessageBody(sortedXml.ToString()));
            }
            return null;
        }


 public class SimpleMessageBody : BodyWriter
    {
        string xmlContent;

        public SimpleMessageBody(string content)
            : base(true)
        {
            this.xmlContent = content;
        }

        protected override void OnWriteBodyContents(XmlDictionaryWriter writer)
        {
            using (StringReader stringReader = new StringReader(xmlContent))
            {
                using (XmlReader xmlReader = XmlTextReader.Create(stringReader))
                {
                    writer.WriteNode(xmlReader, true);
                }
            }
        }
    }

“可以将消息用作参数只有当它是 “手术”

那我有什么选择。。

1 回复 | 直到 14 年前

ps. 14 年前

 request = Message.CreateMessage(request.Version, null, new SimpleMessageBody(sortedXml.ToString()));
            }

到

Message newMessage = null;
                newMessage = Message.CreateMessage(request.Version, null, new SimpleMessageBody(sortedXml.ToString()));

                newMessage.Headers.CopyHeadersFrom(request);
                newMessage.Properties.CopyProperties(request.Properties);
                request = newMessage;