Question

我有一个带有服务方法的WCF服务，该服务方法在自定义代理的帮助下使用net.tcp公开。我能够毫无困难地使用自定义代理访问我的服务方法。但是，在我的一个服务方法中添加异常处理后，代理无法与服务建立连接。

工作代码与非工作代码之间的唯一区别在于，非工作代码具有适用于服务方法的异常处理;工作工作版本没有异常处理。

到目前为止我做了什么

我确实尝试将安全模式从None更改为Message 例如：binding.Security.Mode = SecurityMode.Message;
我重新启动了Net.Tcp Listner adaptor,Net.Tcp Port Sharing service和Net.Pipe Listner Adaptor等服务。
我在管理模式下执行了ServiceModelReg.exe -r命令。

服务合同

[ServiceContract(Namespace = "http://mydom.com/mainrt/subrt")]
public interface IService
{
 [OperationContract]
 [FaultContract(typeof(ServiceException))]
 string CallToServiceMethod(object dataTransferObject);
}

[DataContract(Namespace = "http://mydom.com/mainrt/subrt")]
public class ServiceException
 {
        [DataMember]
        public string ServiceMethodName { get; set; }

        [DataMember]
        public string ErrorMessage { get; set; }

        [DataMember]
        public string ErrorInnerException { get; set; }

        public ServiceException()
        {
            ServiceMethodName = string.Empty;
            ErrorMessage = string.Empty;
            ErrorInnerException = string.Empty;
        }
    }

实施 - 不工作

public string CallToServiceMethod(object dataTransferObject)
        {
            try
            {
               //code goes here               
            }
            catch (Exception ex)
            {
                throw new FaultException<ServiceException>(new ServiceException()
                                                                    {
                                                                        ErrorInnerException = ex.InnerException.Message,
                                                                        ErrorMessage = ex.Message,
                                                                        ServiceMethodName = "CallToServiceMethod"
                                                                    });
}

实施 - 工作

public string CallToServiceMethod(object dataTransferObject)
            {
                try
                {
                   //code goes here               
                }
                catch (Exception ex)
                {
                    // Log exception details                
                }
          }

自定义代理和触发器

public void Use(UseServiceDelegate<T> codeBlock, string wcfEndPoint)
        {
            try
            {
                this.proxy = GetChannelFactory(wcfEndPoint).CreateChannel() as IClientChannel;
                if (this.proxy != null)
                {
                    this.proxy.Open(); // Here it fails when I have the exception handling. 
                    codeBlock((T)this.proxy);
                    this.proxy.Close();
                }
            }
            catch (CommunicationException commEx)
            {
                if (this.proxy != null)
                    this.proxy.Abort();

                throw commEx;
            }

        }

 ChannelFactory<T> GetChannelFactory(string wcfEndPoint)
        {
            ChannelFactory<T> channelFactory = null;

            if (!channelPool.TryGetValue(wcfEndPoint, out channelFactory))
            {
                NetTcpBinding binding = new NetTcpBinding();
                binding.MaxReceivedMessageSize = 20000000;
                binding.ReaderQuotas.MaxStringContentLength = 20000000;
                binding.ReaderQuotas.MaxBytesPerRead = 20000000;

                binding.Security.Mode = SecurityMode.None; // I did check it from None to Message/TCP but no luck
                binding.Security.Transport.ClientCredentialType = cpClientCredentialType.Windows;
                binding.Security.Transport.ProtectionLevel = System.Net.Security.ProtectionLevel.EncryptAndSign;
                binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;


                EndpointIdentity epIdentity = EndpointIdentity.CreateUpnIdentity("email@email.come");
                EndpointAddress epAddress = new EndpointAddress(new Uri(wcfEndPoint), epIdentity, new AddressHeaderCollection());

                channelFactory = new ChannelFactory<T>(binding, epAddress);
                channelPool.Add(wcfEndPoint, channelFactory);
            }

            return channelFactory;
        }

异常消息（当我在代理对象上调用Open方法时）

{System.ServiceModel.EndpointNotFoundException: The message could not be dispatched because the 
 service at the endpoint address 'net.tcp://xxxxxxxxx/Service.svc' is unavailable for the protocol of the address.

Server stack trace: 
   at System.ServiceModel.Channels.ConnectionUpgradeHelper.DecodeFramingFault(ClientFramingDecoder decoder, IConnection connection, Uri via, String contentType, TimeoutHelper& timeoutHelper)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper& timeoutHelper)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper& timeoutHelper)
   at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open()

Net.tcp服务方法和异常处理 - WCF

0 个答案: