net Winform socket 套接字聊天室客户端和服务端 源码

 

 

 

 

///-------------------------------------- 客户端----------------------------------

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;   // ipportend IPADRESS类  IPadress 端口和iP等信息

using System.Net.Sockets;
using System.Threading;

using System.IO; 

namespace heima
{
    public partial class Form_Client : Form
    {
        public Form_Client()
        {
            InitializeComponent();
        }
        Socket sockeclient = null;   //创建负责监听的套接字

        private void button1_Click(object sender, EventArgs e)
        {
            IPAddress adress = IPAddress.Parse(textBox1.Text);  //指定textbox1的text值为IPADDRESS 的 获取文本框的ip地址

       // 创建包含ip和port的网络节点对象
            IPEndPoint ippoint = new IPEndPoint(adress,int.Parse(textBox2.Text));
              sockeclient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);  // 赋值负责监听的套接字 Socket方法中 寻址协议ip4  ，流的//协议，tcp协议 来监听

            sockeclient.Connect(ippoint);  //l连接网络节点

            ClienThre = new Thread(recemess);
            ClienThre.IsBackground = true;
            ClienThre.Start();
          
        }
        void Show(string mess)
        {
            textBox3.AppendText(mess+"\r\n");
        }

        Thread ClienThre = null;
        void recemess()
        {
            while (true)
            {
                byte[] merec = new byte[1024 * 1024];

                string Strmerec = System.Text.Encoding.UTF8.GetString(merec, 0, sockeclient.Receive(merec)); //GetString方法从接受来的数组转成字符串

                Show(Strmerec);
            }
       
        }

        private void button2_Click(object sender, EventArgs e)  //发送事件
        {
            byte[] sendby = System.Text.Encoding.UTF8.GetBytes(textmegs.Text);
            byte[] sentext = new byte[sendby.Length+1];
            sentext[0] = 0;
            Buffer.BlockCopy(sendby, 0, sentext, 1, sendby.Length);

            sockeclient.Send(sentext);

        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (openFiles.ShowDialog() != DialogResult.OK)
            {

            }else
            {
                textBox4.Text = openFiles.FileName;
           
            }
        }

        private void button4_Click(object sender, EventArgs e)//发送文件
        {
            using (FileStream fs = new FileStream(textBox4.Text, FileMode.Open))
            {

                byte[] Filebytesr = new byte[1024 * 1024 * 2];
                int Length = fs.Read(Filebytesr, 0, Filebytesr.Length);//读到发送文件的的真实长度

                byte[] Filete = new byte[Length+1];
                Filete[0] = 1;
                Buffer.BlockCopy(Filebytesr, 0, Filete, 1, Length);

                sockeclient.Send(Filete);
                Show(Filete[0].ToString());

               

           
            }
        }
 
    }
}

 

 

///-------------------------------------- 服务端----------------------------------

 

 

 

 

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net; // ipportend IPADRESS类  IPadress 端口和iP等信息
using System.Net.Sockets;
using System.Threading;
using System.IO;

namespace heima
{
    public partial class Form_server : Form
    {
        public Form_server()
        {
            InitializeComponent();
            TextBox.CheckForIllegalCrossThreadCalls = false;
        }

        private void Form_server_Load(object sender, EventArgs e)
        {

        }

        Thread swchthread = null;
        Socket swchsocket = null;
        Socket sockconection = null;
        void watchconect()
        {
               while (true)
                {
                      sockconection = swchsocket.Accept();//创建

                    listBox1.Items.Add(sockconection.RemoteEndPoint.ToString());

                    dic.Add(sockconection.RemoteEndPoint.ToString(), sockconection);

                    showmge("连接成功！");

                    Thread rec = new Thread(recemess);
                    rec.IsBackground = true;
                    rec.Start(sockconection);
                    dicttread.Add(sockconection.RemoteEndPoint.ToString(), rec);

                }
         

        }
        void recemess(object sockets)
        {

            while (true)
            {
                Socket sockeclient = sockets as Socket;
                byte[] merec = new byte[1024 * 1024];
                try
                {
                    int Length = sockeclient.Receive(merec);

                    if (merec[0] == 0)//是文件格式的
                    {
                        string Strmerec = System.Text.Encoding.UTF8.GetString(merec, 1, Length - 1); //GetString方法从接受来的数组转成字符串
                        Console.Write(merec[0].ToString() + "文字输出------");

                        Show(Strmerec);

                    }

                    if (merec[0] == 1)
                    {
                        SaveFileDialog Sfd = new SaveFileDialog();
                        Console.Write(merec[0].ToString() + "wenjianshuchu");
                        if (Sfd.ShowDialog() == DialogResult.OK)
                        {

                            string savepath = Sfd.FileName;

                            using (FileStream fs = new FileStream(savepath, FileMode.Create))
                            {
                                fs.Write(merec, 1, Length - 1);
                                showmge("文件保存成功" + savepath);

                            }
                        }
                        else
                        {

                        }
                    }
                }
                catch (SocketException ex)
                {
                    showmge("异常:" + ex.Message);
                    dic.Remove(sockconection.RemoteEndPoint.ToString());
                    dicttread.Remove(sockconection.RemoteEndPoint.ToString());
                    listBox1.Items.Remove(sockconection.RemoteEndPoint.ToString());
                    break;
                }
                catch (Exception ex) { MessageBox.Show(ex.Message); }
            }
        }

      

        void Show(string mess)
        {
            textBox3.AppendText(mess + "\r\n");
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //创服务端的负责监听的套接字的 参数  Ip4寻址协议， 流传输 TCp协议
            swchsocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPAddress ipadress = IPAddress.Parse(textBox1.Text);
            IPEndPoint endport = new IPEndPoint(ipadress,int.Parse( textBox2.Text));
 
            //把负责监听的套接字绑定到主机上

            swchsocket.Bind(endport);
            swchsocket.Listen(10); //同时支持10个在线
            showmge("服务器启动成功!");

            swchthread = new Thread(watchconect);
            swchthread.IsBackground = true;
            swchthread.Start();
 
        }

        void showmge(string mge)
        {
            textBox3.AppendText(mge+"\r\n");
       
        }
 Dictionary<string,Socket> dic=new Dictionary<string,Socket>();//保存所有和服务器通信的套接字
 Dictionary<string, Thread> dicttread = new Dictionary<string, Thread>(); //保存服务器所有通信的套接字接收线程

        private void button2_Click(object sender, EventArgs e)
        {
            string messaa = textBox4.Text;
            byte[] messbye = System.Text.Encoding.UTF8.GetBytes(messaa);
            string stresend = listBox1.Text;
            dic[stresend].Send(messbye);
           // sockconection.Send(messbye);
            showmge("发送成功!!"+messaa);
        }

        private void button3_Click(object sender, EventArgs e) //群发消息
        {
            string messaa = textBox4.Text;
            byte[] messbye = System.Text.Encoding.UTF8.GetBytes(messaa);
            foreach(Socket s in dic.Values)
            {

               s.Send(messbye);
            }
            
           
            // sockconection.Send(messbye);
            showmge("发送成功!!" + messaa);
        }
    }
}