C# Socket TCP通信

1、SocketSever服务器端代码

2、SocketClient客户端代码

3、VS2019上测试通过，修改IP地址和端口号就可以直接编译使用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace SocketDemo.Client
{
    public partial class FrmSocketClientMain : Form
    {
        public FrmSocketClientMain（）
        {
            InitializeComponent（）;
        }
        //创建1个客户端套接字和1个负责监听服务端请求的线程 
        static Thread ThreadClient = null;
        static Socket SocketClient = null;

        private void btnConnect_Click（object sender EventArgs e）
        {
            IPAddress ip = IPAddress.Parse（this.txtServerIP.Text）;
            IPEndPoint ipe = new IPEndPoint（ip Convert.ToInt32（ this.txtServerPort.Text））;
            //定义一个套接字监听 
            SocketClient = new Socket（AddressFamily.InterNetwork SocketType.Stream ProtocolType.Tcp）;
            try
            {
                //客户端套接字连接到网络节点上，用的是Connect 
                SocketClient.Connect（ipe）;
            }
            catch （Exception）
            {
                listBox1.Items.Add（DateTime.Now.ToString（“yyyy-MM-dd HH:mm:ss:ffff“） + “  “ + “连接失败“）;
                return;
            }
            ThreadClient = new Thread（Recv）;
            ThreadClient.IsBackground = true;
            ThreadClient.Start（）;
        }

        //发送字符信息到服务端的方法 
        public static void ClientSendMsg（string sendMsg）
        {
            //将输入的内容字符串转换为机器可以识别的字节数组   
            byte[] arrClientSendMsg = Encoding.UTF8.GetBytes（sendMsg）;
            //调用客户端套接字发送字节数组   
            SocketClient.Send（arrClientSendMsg）;
        }
        //接收服务端发来信息的方法  
        public  void Recv（）
        {
            //持续监听服务端发来的消息 
            while （true）
            {
                try
                {
                    //定义一个1M的内存缓冲区，用于临时性存储接收到的消息 
                    byte[] arrRecvmsg = new byte[1024 * 1024];
                    //将客户端套接字接收到的数据存入内存缓冲区，并获取长度 
                    int length = SocketClient.Receive（arrRecvmsg）;
                    //将套接字获取到的字符数组转换为人可以看懂的字符串 
                    string strRevMsg = Encoding.UTF8.GetString（arrRecvmsg 0 length）;
                    listBox1.Items.Add（DateTime.Now.ToString（“yyyy-MM-dd HH:mm:ss:ffff“） + “  “ +“服务器：“ + strRevMsg ）;
                }
                catch （Exception ex）
                {
                    listBox1.Items.Add（DateTime.Now.ToString（“yyyy-MM-dd HH:mm:ss:ffff“） + “  “ + “远程服务器已经中断连接！“ + ex.Message ）;
                    break;
                }
            }
        }

        private void btnDisConnect_Click（object sender EventArgs e）
        {
            if （SocketClient != null）
                SocketClient.Dispose（）;
        }

        private void btnSend_Click（object sender EventArgs e）
        {
            if （!string.IsNullOrEmpty（this.txtMsg.

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       1632  2021-05-13 14:45  SocketDemo.sln

     文件        187  2021-05-13 11:03  SocketClient\App.config

     文件     730112  2021-05-13 14:59  SocketClient\bin\Debug\SocketClient.exe

     文件        187  2021-05-13 11:03  SocketClient\bin\Debug\SocketClient.exe.config

     文件      34304  2021-05-13 14:59  SocketClient\bin\Debug\SocketClient.pdb

     文件       3518  2021-05-13 14:56  SocketClient\FrmSocketClientMain.cs

     文件      10159  2021-05-13 14:57  SocketClient\FrmSocketClientMain.Designer.cs

     文件     543623  2021-05-13 14:44  SocketClient\FrmSocketClientMain.resx

     文件     358334  2021-05-13 14:44  SocketClient\Network.ico

     文件        210  2021-05-13 11:03  SocketClient\obj\Debug\.NETframeworkVersion=v4.5.AssemblyAttributes.cs

     文件       7248  2021-05-13 14:56  SocketClient\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件         42  2021-05-13 14:59  SocketClient\obj\Debug\SocketClient.csproj.CoreCompileInputs.cache

     文件        870  2021-05-13 14:59  SocketClient\obj\Debug\SocketClient.csproj.FileListAbsolute.txt

     文件       1026  2021-05-13 14:59  SocketClient\obj\Debug\SocketClient.csproj.GenerateResource.cache

     文件     730112  2021-05-13 14:59  SocketClient\obj\Debug\SocketClient.exe

     文件      34304  2021-05-13 14:59  SocketClient\obj\Debug\SocketClient.pdb

     文件     358900  2021-05-13 14:59  SocketClient\obj\Debug\SocketDemo.Client.FrmSocketClientMain.resources

     文件        180  2021-05-13 14:59  SocketClient\obj\Debug\SocketDemo.Client.Properties.Resources.resources

     文件       3584  2021-05-13 14:56  SocketClient\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

     文件        543  2021-05-13 14:58  SocketClient\Program.cs

     文件       1316  2021-05-13 11:03  SocketClient\Properties\AssemblyInfo.cs

     文件       2890  2021-05-13 14:56  SocketClient\Properties\Resources.Designer.cs

     文件       5612  2021-05-13 11:03  SocketClient\Properties\Resources.resx

     文件       1118  2021-05-13 14:56  SocketClient\Properties\Settings.Designer.cs

     文件        249  2021-05-13 11:03  SocketClient\Properties\Settings.settings

     文件       3812  2021-05-13 14:56  SocketClient\SocketClient.csproj

     文件        187  2021-05-13 11:01  SocketServer\App.config

     文件    1091072  2021-05-14 16:18  SocketServer\bin\Debug\SocketServer.exe

     文件        187  2021-05-13 11:01  SocketServer\bin\Debug\SocketServer.exe.config

     文件      38400  2021-05-14 16:18  SocketServer\bin\Debug\SocketServer.pdb

............此处省略43个文件信息