C# Udp Socket例子

迈不过友情╰ 2022-07-16 02:16 208阅读 0赞

# [C\# Udp Socket例子][C_ Udp Socket] #

服务器端：

using System;  
![None.gif][]using System.Collections.Generic;  
![None.gif][]using System.Text;  
![None.gif][]using System.Net;  
![None.gif][]using System.Net.Sockets;  
![None.gif][]  
![None.gif][]namespace UDPServer  
![ExpandedBlockStart.gif][]![ContractedBlock.gif][]![dot.gif][]\{  
![InBlock.gif][]    class Program  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]    ![dot.gif][]\{  
![InBlock.gif][]        static void Main(string\[\] args)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]        ![dot.gif][]\{  
![InBlock.gif][]            int recv;  
![InBlock.gif][]            byte\[\] data = new byte\[1024\];   
![InBlock.gif][]  
![InBlock.gif][]            //构建TCP 服务器  
![InBlock.gif][]  
![InBlock.gif][]            //得到本机IP，设置TCP端口号           
![InBlock.gif][]            IPEndPoint ipep = new IPEndPoint(IPAddress.Any , 8001);  
![InBlock.gif][]            Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram , ProtocolType.Udp);  
![InBlock.gif][]  
![InBlock.gif][]            //绑定网络地址  
![InBlock.gif][]            newsock.Bind(ipep);  
![InBlock.gif][]  
![InBlock.gif][]            Console.WriteLine("This is a Server, host name is \{0\}",Dns.GetHostName());  
![InBlock.gif][]  
![InBlock.gif][]            //等待客户机连接  
![InBlock.gif][]            Console.WriteLine("Waiting for a client![dot.gif][]");  
![InBlock.gif][]  
![InBlock.gif][]            //得到客户机IP  
![InBlock.gif][]            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);  
![InBlock.gif][]            EndPoint Remote = (EndPoint)(sender);  
![InBlock.gif][]            recv = newsock.ReceiveFrom(data, ref Remote);  
![InBlock.gif][]            Console .WriteLine ("Message received from \{0\}: ", Remote.ToString ());  
![InBlock.gif][]            Console .WriteLine (Encoding .ASCII .GetString (data ,0,recv ));  
![InBlock.gif][]  
![InBlock.gif][]            //客户机连接成功后，发送欢迎信息  
![InBlock.gif][]            string welcome = "Welcome ! ";  
![InBlock.gif][]  
![InBlock.gif][]            //字符串与字节数组相互转换  
![InBlock.gif][]            data  = Encoding .ASCII .GetBytes (welcome );  
![InBlock.gif][]  
![InBlock.gif][]            //发送信息  
![InBlock.gif][]            newsock .SendTo (data ,data.Length ,SocketFlags .None ,Remote );  
![InBlock.gif][]            while (true )  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]            ![dot.gif][]\{  
![InBlock.gif][]                data =new byte \[1024\];  
![InBlock.gif][]                //发送接受信息  
![InBlock.gif][]                recv =newsock.ReceiveFrom(data ,ref Remote);  
![InBlock.gif][]                Console .WriteLine (Encoding .ASCII .GetString (data ,0,recv));  
![InBlock.gif][]                newsock .SendTo (data ,recv ,SocketFlags .None ,Remote );  
![ExpandedSubBlockEnd.gif][]            \}  
![ExpandedSubBlockEnd.gif][]        \}  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][]    \}  
![ExpandedBlockEnd.gif][]\}  
![None.gif][]

![复制代码][copycode.gif]

客户端：

![复制代码][copycode.gif]

[C_ Udp Socket]: http://www.cnblogs.com/zhangpengshou/archive/2008/10/09/1307622.html
[None.gif]: /images/20220716/541fbc1acfc64c1a91dd024462c8eaea.png
[ExpandedBlockStart.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif
[ContractedBlock.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif
[dot.gif]: /images/20220716/e00644362da34aeaa4a7e3eb7b054fda.png
[InBlock.gif]: /images/20220716/31c8239cbe194d09a8a8ec879f868152.png
[ExpandedSubBlockStart.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif
[ContractedSubBlock.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif
[ExpandedSubBlockEnd.gif]: /images/20220716/448a228f9a864e52b8b87fc2c6a03ee0.png
[ExpandedBlockEnd.gif]: /images/20220716/76e5501bb86b414a88a197260ba786ae.png
[copycode.gif]: /images/20220716/04efbcce07164718aa90a88b532dfb12.png