tcp助手类编程 暑期学习笔记（五）

tcp助手类是在socket层上建立的，可以直接通过client或server属性设置或获取。

 

 

#region usings
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
#endregion

namespace Server
{
    
    public partial class TalkServer : Form
    {
        #region Parameters

        IPEndPoint remoteIpep;
        TcpClient tcpc,tcpcb;
        TcpListener tcpl;
        Thread threadL;
        NetworkStream ns;
        delegate void AppendItem(object o);
        AppendItem AddItem;
        Socket connectSocket;
        void addItem(object o)
        {
            listBox.Items.Add(o);
        }

        #endregion

        #region Events

        public TalkServer()
        {
            InitializeComponent();
            AddItem = new AppendItem(addItem);
        }

        private void btServerStart_Click(object sender, EventArgs e)
        {
            tcpl = new TcpListener(IPAddress.Any, 2008);
            try
            {
                tcpl.Start(10);
                threadL = new Thread(new ThreadStart(acceptCnns));
                threadL.IsBackground = true;
                threadL.Start();
                listBox.Items.Add("Server start success");
            }
            catch (Exception exc)
            {
                listBox.Items.Add(exc.Message);
                throw;
            }

        }

        #endregion

        #region Methods

        private void acceptCnns()
        {
            string welcome = "welcome to server!";
            byte[] buf = Encoding.Unicode.GetBytes(welcome);
            while (true)
            {
                try
                {
                    tcpc = tcpl.AcceptTcpClient();
                    remoteIpep = (IPEndPoint ) tcpc.Client.RemoteEndPoint;
                    ns = tcpc.GetStream();
                    ns.Write(buf, 0, buf.Length);
                    ThreadPool.QueueUserWorkItem(new WaitCallback(receiveData));
                }
                catch (Exception)
                {

                    throw;
                }
            }
        }

        private void receiveData(object o)
        {
            int len = tcpc.Available;
            byte[] buf = new byte[1024];
            string data = string.Empty;
            while (true)
            {
                len = tcpc.Available;
                if (len != 0)
                {
                    ns.Read(buf, 0, len);
                    data = Encoding.Unicode.GetString(buf, 0, len);
                    listBox.Invoke(AddItem, data);
                }
            }
        }
        #endregion

        private void btConnect_Click(object sender, EventArgs e)
        {
            tcpcb = new TcpClient();
            tcpcb.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
            try
            {
                tcpcb.Connect(remoteIpep);
                //ns = tcpcb.GetStream(); 
                listBox.Invoke(AddItem, "Connected!");
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message);
            }
        }
    }
}

 

#region usings

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

#endregion

namespace Client
{
    public partial class TalkClient : Form
    {
        #region Parameters

        TcpClient tcpc,tcpc2,tcpcb,tcpcr;
        TcpListener tcpl;
        NetworkStream ns;
        Thread threadR;
        Thread threadL;
        delegate void AppendItem(object o);
        AppendItem AddItem;
        void addItem(object o)
        {
            listBox.Items.Add(o);
        }

        #endregion

        #region Events

        public TalkClient()
        {
            InitializeComponent();
            AddItem = new AppendItem(addItem);
        }

        private void btListen_Click(object sender, EventArgs e)
        {

        }

        private void TalkClient_Load(object sender, EventArgs e)
        {

        }

        private void btCnnect_Click(object sender, EventArgs e)
        {
            string target = txtTarget.Text.Trim();
            IPAddress ipa = Dns.GetHostAddresses(target)[0];
            IPEndPoint ipep = new IPEndPoint(ipa, 2008);
            tcpc = new TcpClient();
            try
            {
                tcpc.Connect(ipep);
                listBox.Items.Add("connected!");
                ns = tcpc.GetStream();
                tcpcr = tcpc;
                threadR = new Thread(new ThreadStart(receiveData));
                threadR.IsBackground = true;
                threadR.Start();
                listBox.Items.Add("thread receive started!");
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message);
            }
            tcpc2 = new TcpClient();
            tcpc2.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
            try
            {
                tcpc2.Connect(ipep);
                listBox.Items.Add("Connection 2 connected!");
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message);
            }
        }

        private void btSend_Click(object sender, EventArgs e)
        {
            string data = txtMessage.Text.Trim();
            try
            {
                byte[] buf = Encoding.Unicode.GetBytes(data);
                ns.Write(buf, 0, buf.Length);
            }
            catch (Exception exc)
            {
                listBox.Items.Add(exc.Message);
                throw;
            }
        }

        #endregion

        #region Methods

        void receiveData()
        {
            string data = string.Empty;
            byte[] buf = new byte[1024];
            int len = 0;

            while (true)
            {
                len = tcpcr.Available;
                if ( len != 0)
                {
                    ns.Read(buf, 0, len);
                    data = Encoding.Unicode.GetString(buf, 0, len);
                    listBox.Invoke(AddItem, data);
                }
            }
        }


        #endregion



    }
}