c# SOCKET同步通信

服务器端:

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class SynchronousSocketClient
...{
    public static void StartClient()
    ...{
        // Data buffer for incoming data. 

        byte[] bytes = new byte[1024];
        // Connect to a remote device. 

        try
        ...{
           
            // 使用 8088端口 在本机上
            IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());

           
            IPAddress ipAddress = ipHostInfo.AddressList[0];
            IPEndPoint remoteEP = new IPEndPoint(ipAddress, 8088);
         
            Socket sender = new Socket(AddressFamily.InterNetwork,
            SocketType.Stream, ProtocolType.Tcp);
            // 建立TCP连接. Catch any errors. 


            try
            ...{
                sender.Connect(remoteEP);
                Console.WriteLine("Socket connected to {0}",
                sender.RemoteEndPoint.ToString());
               

                byte[] msg = Encoding.ASCII.GetBytes("This is a test<EOF>");
                

                int bytesSent = sender.Send(msg);
              

                int bytesRec = sender.Receive(bytes);
                Console.WriteLine("Echoed test = {0}",
                Encoding.ASCII.GetString(bytes, 0, bytesRec));
              
                sender.Shutdown(SocketShutdown.Both);
                sender.Close();
            }
            catch (ArgumentNullException ane)
            ...{
                Console.WriteLine("ArgumentNullException : {0}", ane.ToString());
            }
            catch (SocketException se)
            ...{
                Console.WriteLine("SocketException : {0}", se.ToString());
            }
            catch (Exception e)
            ...{
                Console.WriteLine("Unexpected exception : {0}", e.ToString());
            }
        }
        catch (Exception e)
        ...{
            Console.WriteLine(e.ToString());
        }
    }
    public static int Main(String[] args)
    ...{
        StartClient();
        return 0;
    }
}

 

客户端:

 

using System; 
using System.Net; 
using System.Net.Sockets; 
using System.Text;
public class SynchronousSocketListener
...{
   
    public static string data = null;
    public static void StartListening()
    ...{
        

        byte[] bytes = new Byte[1024];
      
        IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());
      
        IPAddress ipAddress = ipHostInfo.AddressList[0];
        IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 8088);
      

        Socket listener = new Socket(AddressFamily.InterNetwork,
        SocketType.Stream, ProtocolType.Tcp);
        
        try
        ...{
            listener.Bind(localEndPoint);
            listener.Listen(10);
         

            while (true)
            ...{
                Console.WriteLine("Waiting for a connection...");
     
                Socket handler = listener.Accept();
                data = null;
              

                while (true)
                ...{
                    bytes = new byte[1024];
                    int bytesRec = handler.Receive(bytes);
                    data += Encoding.ASCII.GetString(bytes, 0, bytesRec);
                    if (data.IndexOf("<EOF>") > -1)
                    ...{
                        break;
                    }
                }
             

                Console.WriteLine("Text received : {0}", data);

                byte[] msg = Encoding.ASCII.GetBytes(data);
                handler.Send(msg);
                handler.Shutdown(SocketShutdown.Both);
                handler.Close();
            }
        }
        catch (Exception e)
        ...{
            Console.WriteLine(e.ToString());
        }
        Console.WriteLine(" Press ENTER to continue...");
        Console.Read();
    }
    public static int Main(String[] args)
    ...{
        StartListening();
        return 0;
    }
}