C# Socket通讯DEMO

C# Socket通讯DEMO，包括服务端客户端，能够实现简单聊天功能。结构简单方便用来学习深度开发

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

namespace SocketClient
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
            //关闭对文本框的非法线程操作检查
            TextBox.CheckForIllegalCrossThreadCalls = false;
        }

        // 创建一个客户端套接字
        Socket clientSocket = null;
        // 创建一个监听服务端的线程
        Thread threadServer = null;
        private void btn_Click（object sender EventArgs e）
        {
            clientSocket = new Socket（AddressFamily.InterNetwork SocketType.Stream ProtocolType.Tcp）;
            if （string.IsNullOrEmpty（ipAddress.Text.ToString（）））
            {
                MessageBox.Show（“监听ip地址不能为空！“）;
                return;
            }
            if （string.IsNullOrEmpty（port.Text.ToString（）））
            {
                MessageBox.Show（“监听端口不能为空！“）;
                return;
            }
            IPAddress ip = IPAddress.Parse（ipAddress.Text.Trim（））;
            IPEndPoint endpoint = new IPEndPoint（ip int.Parse（port.Text.Trim（）））;
         
            try
            {   //这里客户端套接字连接到网络节点（服务端）用的方法是Connect 而不是Bind
                clientSocket.Connect（endpoint）;
            }
            catch 
            {
                chatContent.AppendText（“连接失败！“）;
               
            }
            
            // 创建一个线程监听服务端发来的消息
            threadServer = new Thread（recMsg）;
            threadServer.IsBackground = true;
            threadServer.Start（）;
        }

        /// 

        ///  接收服务端发来的消息
        /// 

        private void recMsg（） {

            while （true） //持续监听服务端发来的消息
            {
                //定义一个1M的内存缓冲区 用于临时性存储接收到的信息
                byte[] arrRecMsg = new byte[1024 * 1024];
                int length = 0;
                try
                {
                    //将客户端套接字接收到的数据存入内存缓冲区 并获取其长度
                     length = clientSocket.Receive（arrRecMsg）;
                }
                catch 
                {
                    return;
                   
                }
             
                //将套接字获取到的字节数组转换为人可以看懂的字符串
                string strRecMsg = Encoding.UTF8.GetString（arrRecMsg 0 length）;
                //将发送的信息追加到聊天内容文本框中
                chatContent.AppendText（“服务端（“ + GetCurrentTime（） + “）:“ + strRecMsg + “\r\n“）;
            }
        }

        /// 

        /// 发送消息到服务端
        /// 

        /// 
        private void clientSendMsg（string msg）
        {
            byte[] sendMsg = Encoding.UTF8.GetBytes（msg）;
            clientSocket.Send（sendMsg）;
            chatContent.AppendText（“客户端（“ + GetCurrentTime（） + “）:“ + msg + “\r\n“）;
        }
        /// 

        /// 获取当前系统时间的方法
        

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-10-12 02:54  Socket-master\
     文件         132  2017-10-12 02:54  Socket-master\.gitignore
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\.vs\
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\.vs\SocketServer\
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\.vs\SocketServer\v15\
     文件       68096  2017-10-12 02:54  Socket-master\SocketServer\.vs\SocketServer\v15\.suo
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\.vs\SocketServer\v15\sqlite3\
     文件      593920  2017-10-12 02:54  Socket-master\SocketServer\.vs\SocketServer\v15\sqlite3\storage.ide
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\
     文件         182  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\App.config
     文件        6541  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Form1.Designer.cs
     文件        3870  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Form1.cs
     文件        5698  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Form1.resx
     文件         502  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Program.cs
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\
     文件        1304  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\AssemblyInfo.cs
     文件        2766  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\Resources.Designer.cs
     文件        5496  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\Resources.resx
     文件        1069  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\Settings.Designer.cs
     文件         242  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\Properties\Settings.settings
     文件        3488  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\SocketClient.csproj
     文件           0  2017-10-12 02:54  Socket-master\SocketServer\SocketClient\reback.txt
     文件        1592  2017-10-12 02:54  Socket-master\SocketServer\SocketServer.sln
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\
     文件         182  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\App.config
     文件        6522  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\Form1.Designer.cs
     文件        4596  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\Form1.cs
     文件        5698  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\Form1.resx
     文件         502  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\Program.cs
     目录           0  2017-10-12 02:54  Socket-master\SocketServer\SocketServer\Properties\
............此处省略28个文件信息