Socket最简单通信代码分享

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace TcpServer
{
    class Program
    {
        static void Main(string[] args)
        {
            //确定端口号
            int port = 6000;

            //设定连接IP
            string host = "127.0.0.1";

            //将IP地址字符串转化为IP地址实例
            IPAddress ip = IPAddress.Parse(host);

            //将网络端点表示为 IP 地址和端口号
            IPEndPoint ipe = new IPEndPoint(ip, port);

            //建立Socket 
            //addressFamily 参数指定 Socket 类使用的寻址方案
            //socketType 参数指定 Socket 类的类型
            //protocolType 参数指定 Socket 使用的协议。 
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            //socket与本地终结点建立关联
            socket.Bind(ipe);
            while (true)
            {
                //开始监听端口
                socket.Listen(0);

                Console.WriteLine("服务已开启,请等待....."+ DateTime.Now.ToString());

                //为新建的连接建立新的Socket目的为客户端将要建立连接
                Socket serverSocket = socket.Accept();
                Console.WriteLine("连接已建立......" + DateTime.Now.ToString());

                string recStr =string.Empty;
                //定义缓冲区用于接收客户端的数据
                byte[] recbyte = new byte[1024];

                //返回接收到的字节数
                int bytes = serverSocket.Receive(recbyte, recbyte.Length, 0);

                //将接收到的字节抓获年华为string
                //参数一:字节数组 参数二:起始索引 参数三:总长度
                recStr += Encoding.ASCII.GetString(recbyte, 0, bytes);

                Console.WriteLine("服务器接收到客户端的信息:" + recStr + " " + DateTime.Now.ToString()+"\n\n");


                //服务端给客户端回送消息
                string strSend = "Hello Client!";
                byte[] sendByte = new byte[1024];
                //将发送的字符串转换为byte[]
                sendByte = Encoding.ASCII.GetBytes(strSend);

                //服务端发送数据
                serverSocket.Send(sendByte, sendByte.Length, 0);

                serverSocket.Close();
            }
        }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace TcpClient
{
    class Program
    {
        static int port = 6000;                          //监听端口号
        static string host = "127.0.0.1";                //连接服务端IP
        static IPAddress ip = IPAddress.Parse(host);     //将IP地址转换为IP实例
        static IPEndPoint ipe = new IPEndPoint(ip, port);//将网络端点表示为 IP 地址和端口号
        static Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//建立客户端Socket
       
        static void Main(string[] args)
        {

            clientSocket.Connect(ipe);                   //客户端开始连接服务端


            string sendStr = "Hello,Server!";            //向服务器发送消息
            byte[] sendBytes = Encoding.ASCII.GetBytes(sendStr);
            clientSocket.Send(sendBytes);


            string revStr = "";                          //接收来自服务器的消息
            byte[] revBytes = new byte[4096];
            int bytes = clientSocket.Receive(revBytes, revBytes.Length, 0);

            revStr += Encoding.ASCII.GetString(revBytes, 0, bytes);
            Console.WriteLine("来自服务端的回应:{0}",revStr);

            clientSocket.Close();
        }
    }
}