TCP Socket Server Client

素颜马尾好姑娘i 2022-07-16 01:59 175阅读 0赞

//Server

using System;  
using System.Collections.Generic;  
using System.Text;  
using System.Net;  
using System.Net.Sockets;  
using System.Threading;  
namespace server  
\{  
    class Program  
    \{  
        static void Main(string\[\] args)  
        \{  
            int port = 2000;  
            string host = "127.0.0.1";

///创建终结点（EndPoint）  
            IPAddress ip = IPAddress.Parse(host);//把ip地址字符串转换为IPAddress类型的实例  
            IPEndPoint ipe = new IPEndPoint(ip, port);//用指定的端口和ip初始化IPEndPoint类的新实例

///创建socket并开始监听  
            Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个socket对像，如果用udp协议，则要用SocketType.Dgram类型的套接字  
            s.Bind(ipe);//绑定EndPoint对像（2000端口和ip地址）  
            s.Listen(0);//开始监听  
            Console.WriteLine("等待客户端连接");  
            while (true)  
            \{  
                ///接受到client连接，为此连接建立新的socket，并接受信息  
                Socket temp = s.Accept();//为新建连接创建新的socket  
                new Thread(new ThreadStart(delegate  
                \{  
                    Console.WriteLine("建立连接");  
                    string recvStr = "";  
                    byte\[\] recvBytes = new byte\[1024\];  
                    int bytes;  
                    bytes = temp.Receive(recvBytes, recvBytes.Length, 0);//从客户端接受信息  
                    recvStr += Encoding.ASCII.GetString(recvBytes, 0, bytes);

///给client端返回信息  
                    Console.WriteLine("server get message:\{0\}", recvStr);//把客户端传来的信息显示出来  
                    string sendStr = "ok!Client send message successful!";  
                    byte\[\] bs = Encoding.ASCII.GetBytes(sendStr);  
                    temp.Send(bs, bs.Length, 0);//返回信息给客户端  
                    temp.Close();  
                \})).Start();

\}  
            s.Close();  
            Console.ReadLine();  
        \}

\}  
\}

//Client  
using System;  
using System.Collections.Generic;  
using System.Text;  
using System.Net;  
using System.Net.Sockets;  
namespace Client  
\{  
    class Program  
    \{  
        static void Main(string\[\] args)  
        \{  
            try  
            \{  
                int port = 2000;  
                string host = "127.0.0.1";  
                ///创建终结点EndPoint  
                IPAddress ip = IPAddress.Parse(host);  
                //IPAddress ipp = new IPAddress("127.0.0.1");  
                IPEndPoint ipe = new IPEndPoint(ip, port);//把ip和端口转化为IPEndpoint实例

///创建socket并连接到服务器  
                Socket c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建Socket  
                Console.WriteLine("Conneting…");  
                c.Connect(ipe);//连接到服务器

///向服务器发送信息  
                string sendStr = "hello!This is a socket test";  
                byte\[\] bs = Encoding.ASCII.GetBytes(sendStr);//把字符串编码为字节  
                Console.WriteLine("Send Message");  
                c.Send(bs, bs.Length, 0);//发送信息

///接受从服务器返回的信息  
                string recvStr = "";  
                byte\[\] recvBytes = new byte\[1024\];  
                int bytes;  
                bytes = c.Receive(recvBytes, recvBytes.Length, 0);//从服务器端接受返回信息  
                recvStr += Encoding.ASCII.GetString(recvBytes, 0, bytes);  
                Console.WriteLine("client get message:\{0\}", recvStr);//显示服务器返回信息  
                ///一定记着用完socket后要关闭  
                c.Close();  
            \}  
            catch (ArgumentNullException e)  
            \{  
                Console.WriteLine("argumentNullException: \{0\}", e);  
            \}  
            catch (SocketException e)  
            \{  
                Console.WriteLine("SocketException:\{0\}", e);  
            \}  
            Console.WriteLine("Press Enter to Exit");  
        \}  
    \}  
\}