你应该知道的.net平台下socket异步通讯(代码实例)

8/3/2015来源:C#应用人气:1389

你应该知道的.net平台下socket异步通讯(代码实例)

1,首先添加两个windows窗体项目,一个作为服务端server,一个作为客户端Client

2,然后添加服务端代码,添加命名空间,界面上添加TextBox控件

using System.Net;using System.Net.Sockets;

3,FormLoad方法添加代码

PRivate void Form1_Load(object sender, EventArgs e)        {            ipEndPoint epServer = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 7878);//IP地址和端口号            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//定义socket            socket.Bind(epServer);//绑定            socket.Listen(10);//监听            socket.BeginAccept(new AsyncCallback(RecVing), socket);//异步接收,回调方法为RecVing        }

4,添加回调方法代码

private void RecVing(IAsyncResult rec_socket)        {            string cmdstr = "";            Socket sc = (Socket)rec_socket.AsyncState;            Socket socket = sc.EndAccept(rec_socket);            byte[] bytes = new byte[1024];            int i = socket.Receive(bytes);            cmdstr = Encoding.UTF8.GetString(bytes, 0, i);            showstrs(cmdstr);            sc.BeginAccept(new AsyncCallback(RecVing), sc);        }

5,添加showstrs方法,

定义委托private delegate void shixudong_invoke(string invokefun);

private void showstrs(string recv_strs)        {            if (recv_strs.Length != 0)            {                if (this.InvokeRequired)                {                    shixudong_invoke invoke = new shixudong_invoke(showstrs);                    this.Invoke(invoke, (object)recv_strs);                }                else                {                    textBox1.Text = recv_strs;                                    }            }        }

6,到此为止,服务端已经添加完毕

7,客户端代码,首先跟服务端一样,添加命名空间,在界面上添加button事件

private void button1_Click(object sender, EventArgs e)        {            IPEndPoint IPEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 7878);//IP,端口号            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);            socket.BeginConnect(IPEndPoint, new AsyncCallback(Sending), socket);//回调方法Sending        }

8,添加回调方法,代码如下

private void Sending(IAsyncResult rec_socket)        {            Socket socket = (Socket)rec_socket.AsyncState;            try            {                if (socket.Connected)                {                    byte[] msgBuff = Encoding.UTF8.GetBytes(textBox1.Text);                    socket.Send(msgBuff);                    //socket.Accept();                }                else                {                    Console.WriteLine("Error!", "Error!");                }            }            catch            {                Console.WriteLine("Error!", "Error!");            }        }

9,到此为止,客户端代码已经完成,调试的时候先启动服务端,然后启动客户端

10,运行截图如下,点击按钮前,在文本框中输入shixudong

11,点击按钮之后截图如下

测试成功,有问题的可以联系我shixudong3@yeah.net,希望能多大家有所帮助!