.NET远程处理HelloWorld

这是我的Hello World远程应用程序

using System;
using System.Collections.Generic;
using System.Text;

namespace Remoting__HelloWorld.UI.Client
{
    public interface MyInterface
    {
        int FunctionOne(string str);
    }
}

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace Remoting__HelloWorld.UI.Client
{
    class MyClient
    {
        public static void Main()
        {
            TcpChannel tcpChannel = new TcpChannel();

            ChannelServices.RegisterChannel(tcpChannel);

            MyInterface remoteObj = (MyInterface) 
            Activator.GetObject(typeof(MyInterface), "tcp://localhost:8080/FirstRemote");

            Console.WriteLine(remoteObj.FunctionOne("Hello World!"));
        }
    }
}


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using Remoting__HelloWorld.UI.Client;

namespace Remoting__HelloWorld.UI.Server
{
    public class MyRemoteClass : MarshalByRefObject, MyInterface
    {
        public int FunctionOne(string str)
        {
            return str.Length;
        }
    }
}


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace Remoting__HelloWorld.UI.Server
{
    class Program
    {
        static void Main(string[] args)
        {
            TcpChannel tcpChannel = new TcpChannel(9999);

            ChannelServices.RegisterChannel(tcpChannel);

            RemotingConfiguration.RegisterWellKnownServiceType(typeof(MyRemoteClass), "FirstRemote", WellKnownObjectMode.SingleCall);

            System.Console.WriteLine("Press ENTER to quit");
            System.Console.ReadLine();
        }
    }
}

但运行此应用程序后，我遇到以下异常：

No connection could be made because the target machine 
actively refused it 127.0.0.1:8080

---

如何修复此问题？

服务器TCPCchannel是9999客户端向8080请求时

当客户端正在查找8080时，您的服务器正在打开端口9999上的频道。

可以这样更改服务器：

TcpChannel tcpChannel = new TcpChannel(8080);

Activator.GetObject(typeof(MyInterface), "tcp://localhost:9999/FirstRemote");

或者像这样更改客户端：

TcpChannel tcpChannel = new TcpChannel(8080);

Activator.GetObject(typeof(MyInterface), "tcp://localhost:9999/FirstRemote");

在服务器端，您正在指定的端口号上打开一个通道（在您的示例中，您使用的是端口9999）。本质上，这告诉服务器“侦听”端口9999上的传入请求。在客户端，您告诉它要连接到哪个端口号（在您的示例中，您使用的是8080端口）。因此，您的服务器正在侦听端口9999，而您的客户端正在尝试连接端口8080。这些端口号必须匹配