C# 网络编程（二）

1.C# 下客户端的实现代码：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.IO;

using System.Threading;

namespace SocketClient

{

class Program

{

private static byte[] result = new byte[1024];

static void Main(string[] args)

{

//设定服务器IP地址

IPAddress ip = IPAddress.Parse("127.0.0.1");

Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

try

{

clientSocket.Connect(new IPEndPoint(ip, 8885)); //配置服务器IP与端口

Console.WriteLine("连接服务器成功");

}

catch

{

Console.WriteLine("连接服务器失败，请按回车键退出！");

return;

}

//通过clientSocket接收数据

int receiveLength = clientSocket.Receive(result);//result存储接收的值

Console.WriteLine("接收服务器消息：{0}", Encoding.ASCII.GetString(result, 0, receiveLength));

//通过 clientSocket 发送数据

for (int i = 0; i < 10; i++)

{

try

{

Thread.Sleep(1000); //等待1秒钟

string sendMessage = "client send Message Hellp" + DateTime.Now;

clientSocket.Send(Encoding.ASCII.GetBytes(sendMessage));

Console.WriteLine("向服务器发送消息：{0}" + sendMessage);

}

catch

{

clientSocket.Shutdown(SocketShutdown.Both);

clientSocket.Close();

break;

}

}

Console.WriteLine("发送完毕，按回车键退出");

Console.ReadLine();

}

}

}

2.C#下，服务器实现的代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.IO;

using System.Threading;

namespace SocketServer

{

class Program

{

private static byte[] result = new byte[1024];//byte 为无符号类型八位整型

private static int myProt = 8885; //端口

static Socket serverSocket;

static void Main(string[] args)

{

//服务器IP地址

IPAddress ip = IPAddress.Parse("127.0.0.1");

serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建套接字

serverSocket.Bind(new IPEndPoint(ip, myProt)); //绑定IP地址：端口

serverSocket.Listen(10); //设定最多10个排队连接请求

Console.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());

//通过Clientsoket发送数据

Thread myThread = new Thread(ListenClientConnect);

myThread.Start();

Console.ReadLine();

}

/// <summary>

/// 监听客户端连接

/// </summary>

private static void ListenClientConnect()

{

while (true)

{

Socket clientSocket = serverSocket.Accept();

clientSocket.Send(Encoding.ASCII.GetBytes("Server Say Hello"));

Thread receiveThread = new Thread(ReceiveMessage);

receiveThread.Start(clientSocket);

}

}

/// <summary>

/// 接收消息

/// </summary>

/// <param name="clientSocket"></param>

private static void ReceiveMessage(object clientSocket)

{

Socket myClientSocket = (Socket)clientSocket;

while (true)

{

try

{

//通过clientSocket接收数据

int receiveNumber = myClientSocket.Receive(result);

Console.WriteLine("接收客户端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));

}

catch (Exception ex)

{

Console.WriteLine(ex.Message);

myClientSocket.Shutdown(SocketShutdown.Both);

myClientSocket.Close();

break;

}

}

}

}

}