.NET Remoting:如何从远程对象访问服务器应用程序对象？

public class MyRemoteObject : MarshalByRefObject
{
    public string GetServerTime()
    {
        return DateTime.Now.ToString();
    }
}

TcpChannel channel = new TcpChannel(9999);
ChannelServices.RegisterChannel(channel, false);
RemotingConfiguration.RegisterWellKnownServiceType(typeof(MyRemoteObject), "MyRemoteObject.rem", WellKnownObjectMode.Singleton);

TcpChannel channel = new TcpChannel();
ChannelServices.RegisterChannel(channel, false);
string url = "tcp://localhost:9999/MyRemoteObject.rem";
MyRemoteObject remoteObject = (MyRemoteObject)Activator.GetObject(typeof(MyRemoteObject), url);

string serverTime = remoteObject.GetServerTime();