netpeertcpbinding是否支持请求/应答?

本文关键字：应答请求是否支持 netpeertcpbinding | 更新日期: 2023-09-27 18:02:55

我有一个WCF p2p网状网络，它在单向对话中运行良好。我正在研究是否有可能调用一个方法来将两个数字相加并返回和。

然而，当我试图连接时，我得到一个错误:

Contract需要Request/Reply，但是Binding' NetPeerTcpBinding'不支持它或者没有正确配置支持它

c#连接

private void button1_Click(object sender, EventArgs e)
{
   try
   {
      // Construct InstanceContext to handle messages on callback interface. 
      // An instance of ChatApp is created and passed to the InstanceContext.
      InstanceContext instanceContext = new InstanceContext(new ChatApp(radTextBoxusername.Text, this));
      // Create the participant with the given endpoint configuration
      // Each participant opens a duplex channel to the mesh
      // participant is an instance of the chat application that has opened a channel to the mesh
      factory = new DuplexChannelFactory<IChatChannel>(instanceContext, "ChatEndpoint");
      participant = factory.CreateChannel();
      // Retrieve the PeerNode associated with the participant and register for online/offline events
      // PeerNode represents a node in the mesh. Mesh is the named collection of connected nodes.
      IOnlineStatus ostat = participant.GetProperty<IOnlineStatus>();
      ostat.Online += new EventHandler(OnOnline);
      ostat.Offline += new EventHandler(OnOffline);
      try
      {
         participant.Open();
      }
      catch (CommunicationException)
      {
         radListViewChats.Text = radListViewChats.Text + ("Could not find resolver.  If you are using a custom resolver, please ensure");
         radListViewChats.Text = radListViewChats.Text + ("that the service is running before executing this sample.  Refer to the readme");
         radListViewChats.Text = radListViewChats.Text + ("for more details.");
         return;
      }
      radListViewChats.Text = radListViewChats.Text +("You are connected: " + radTextBoxusername.Text);
      // Announce self to other participants
      participant.Join(radTextBoxusername.Text);
      }
      catch (Exception ex)
      {
         radListViewChats.Text = radListViewChats.Text + ex.Message.ToString();
         MessageBox.Show(ex.Message.ToString());
      }
    }

c#代码添加2个数字

public int Add(int number1, int number2)
{
   try
   {
      return number1 + number2;
   }
   catch (Exception ex)
   {
      form.SetLogText(ex.Message.ToString());
      return -1;
   }
}

IChat

namespace Client
{
    // Chat service contract
    // Applying [PeerBehavior] attribute on the service contract enables retrieval of PeerNode from IClientChannel.
    [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples", CallbackContract = typeof(IChat))]
    public interface IChat
    {
        [OperationContract(IsOneWay = true)]
        void Join(string member);
        [OperationContract(IsOneWay = true)]
        void Chat(string member, string msg);
        [OperationContract(IsOneWay = true)]
        void Leave(string member);

        [OperationContract(IsOneWay = false)]
        int Add(int number1, int number2);
    }
    public interface IChatChannel : IChat, IClientChannel
    { }
}