知识大全 C#异步Socket代码示例

Posted 2022-07-17 知

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　　下面的代码示例演示如何使用 SocketAsyncEventArgs 类在服务器和客户端之间发送数据和接收响应

　　服务器端代码

Server

　　using System Collections Generic;using System Text;using System Net Sockets;using System Net;namespace SocketTest class Program static void Main(string[] args) Socket serverSk = new Socket(AddressFamily InterNeork SocketType Stream ProtocolType Tcp); serverSk Bind(new IPEndPoint(IPAddress Parse( ) )); serverSk Listen( ); SocketAsyncEventArgs AcceptSAE = new SocketAsyncEventArgs(); AcceptSAE Completed += new EventHandler<SocketAsyncEventArgs>(AcceptSAE_Completed); serverSk AcceptAsync(AcceptSAE); Console ReadLine(); static void AcceptSAE_Completed(object sender SocketAsyncEventArgs e) Socket serverSk = sender as Socket; if (e SocketError == SocketError Success) serverSk = e AcceptSocket; SocketAsyncEventArgs SendSAE = new SocketAsyncEventArgs(); byte[] data = System Text Encoding UTF GetBytes( OK Just Put IT! ); SendSAE SetBuffer(data data Length); SendSAE Completed += new EventHandler<SocketAsyncEventArgs>(SendSAE_Completed); SocketAsyncEventArgs RecieveSAE = new SocketAsyncEventArgs(); byte[] buffer = new byte[ ]; RecieveSAE SetBuffer(buffer buffer Length); RecieveSAE Completed += new EventHandler<SocketAsyncEventArgs>(RecieveSAE_Completed); serverSk ReceiveAsync(RecieveSAE); serverSk SendAsync(SendSAE); else Console WriteLine( 接受网络套接字连接请求失败！具体原因请自己调试！ ); static void RecieveSAE_Completed(object sender SocketAsyncEventArgs e) Socket sk = sender as Socket; byte[] data = e Buffer; //注意这里如何取关联到套接字的发送接受的缓冲区中的值 string msg = System Text Encoding UTF GetString(data); Console WriteLine( Message received: + msg); // sk DisconnectAsync();//你看看该怎么做呢？ static void SendSAE_Completed(object sender SocketAsyncEventArgs e) Socket sk = sender as Socket; if (e SocketError == SocketError Success) Console WriteLine( Send plete! ); byte[] data = e Buffer; //注意这里如何取关联到套接字的发送接受的缓冲区中的值 string msg = System Text Encoding UTF GetString(data); Console WriteLine( What you sent: + msg);

　　客户端代码

Cilent

　　using System Collections Generic;using System Text;using System Net Sockets;using System Net;namespace SocketTestTwo class Program static void Main(string[] args) Socket clientSk = new Socket(AddressFamily InterNeork SocketType Stream ProtocolType Tcp); SocketAsyncEventArgs ConnectSAE = new SocketAsyncEventArgs(); ConnectSAE RemoteEndPoint = new IPEndPoint(IPAddress Parse( ) ); ConnectSAE Completed += new EventHandler<SocketAsyncEventArgs>(ConnectSAE_Completed); clientSk ConnectAsync(ConnectSAE); Console ReadLine(); static void ConnectSAE_Completed(object sender SocketAsyncEventArgs e) Socket clientSk = sender as Socket; if (e SocketError == SocketError Success && clientSk Connected) SocketAsyncEventArgs SendSAE = new SocketAsyncEventArgs(); byte[] data = System Text Encoding UTF GetBytes( I want put all funy things together! ); SendSAE SetBuffer(data data Length); SendSAE Completed += new EventHandler<SocketAsyncEventArgs>(SendSAE_Completed); SocketAsyncEventArgs RecieveSAE = new SocketAsyncEventArgs(); byte[] buffer = new byte[ ]; RecieveSAE SetBuffer(buffer buffer Length); RecieveSAE Completed += new EventHandler<SocketAsyncEventArgs>(RecieveSAE_Completed); //先调用异步接收再调用异步发送让你体验到异步明显非一般的感觉 clientSk ReceiveAsync(RecieveSAE); clientSk SendAsync(SendSAE); static void RecieveSAE_Completed(object sender SocketAsyncEventArgs e) Socket sk = sender as Socket; byte[] data = e Buffer; //注意这里如何取关联到套接字的发送接受的缓冲区中的值 string msg = System Text Encoding UTF GetString(data); Console WriteLine( Message received: +msg); //sk DisconnectAsync();//你看看该怎么做呢？ static void SendSAE_Completed(object sender SocketAsyncEventArgs e) Socket sk = sender as Socket; if (e SocketError == SocketError Success) Console WriteLine( Send plete! );

　　调试运行

　　先调试运行服务器项目

　　再调试运行客户端项目

　　查看运行结果

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