异步Socket 客户端部分

using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.Threading;
using System.Windows;
using System.IO;

namespace IntelliWMS
{
    /// <summary>
    /// 客户端Socket
    /// </summary>
    public class ClientSocket
    {
        #region MyRegion
        private StateObject state;
        private string host;
        private int port;
        private int bufferSize;

        private Thread GuardThread;                                         //守护线程
        private AutoResetEvent m_GuardEvent = new AutoResetEvent(false);    //守护通知事件
        public AutoResetEvent m_ReciveEvent = new AutoResetEvent(false);    //接收通知事件

        public delegate void Updatedata(string result);
        public Updatedata update;

        public delegate void Updatelog(string log);
        public Updatelog uplog;

        public Queue<byte[]> qBytes = new Queue<byte[]>();

        private static Encoding encode = Encoding.UTF8;

        FileInfo log = new FileInfo("Log.txt");

        /// <summary>
        /// 类构造函数
        /// </summary>
        /// <param name="host">ip地址</param>
        /// <param name="port">端口</param>
        /// <param name="bufferSize"></param>
        public ClientSocket(string host, int port, int bufferSize = 1024)
        {
            this.host = host;
            this.port = port;
            this.bufferSize = bufferSize;

            state = new StateObject();
            state.workSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            state.buffer = new byte[bufferSize];
        }

        public bool Start(bool startGuardThread)
        {
            if (state.Connected)
                return true;

            try
            {
                state.workSocket.BeginConnect(host, port, new AsyncCallback(ConnectCallBack), state);
                if (startGuardThread)
                {
                    GuardThread = new Thread(GuardMethod);
                    GuardThread.IsBackground = true;
                    GuardThread.Start();
                }
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        public bool Stop(bool killGuarThread)
        {
            CloseSocket(state);
            if (killGuarThread)
            {
                try
                {
                    GuardThread.Abort();
                }
                catch (Exception ex)
                {

                }
            }
            return true;
        }

        /// <summary>
        /// 发送
        /// </summary>
        /// <param name="buffer"></param>
        /// <returns></returns>
        public bool Send(string data)
        {
            try
            {
                if (uplog != null)
                {
                    uplog("[Send]   " + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss") + "
" + data);
                    using (FileStream fs = log.OpenWrite())
                    {
                        StreamWriter w = new StreamWriter(fs);
                        w.BaseStream.Seek(0, SeekOrigin.End);
                        w.Write("Send：[{0}]   {1}
", DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss"), data);
                        w.Flush();
                        w.Close();
                    }
                }
                state.workSocket.BeginSend(encode.GetBytes(data), 0, encode.GetBytes(data).Length, SocketFlags.None, new AsyncCallback(SendCallBack), (object)state);
            }
            catch (Exception ex)
            {
                //m_GuardEvent.Set();
                return false;
            }
            return true;
        }

        /// <summary>
        /// 发送回调
        /// </summary>
        /// <param name="ar"></param>
        private void SendCallBack(IAsyncResult ar)
        {
            StateObject state = ar.AsyncState as StateObject;
            try
            {
                if (state.workSocket != null && state.workSocket.Connected && state.workSocket.EndSend(ar) <= 0)
                    CloseSocket(state);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 连接回调
        /// </summary>
        /// <param name="ar"></param>
        private void ConnectCallBack(IAsyncResult ar)
        {
            try
            {
                StateObject state = ar.AsyncState as StateObject;
                if (state.workSocket.Connected) //链接成功开始接收数据
                {
                    state.workSocket.BeginReceive(state.buffer, 0, state.buffer.Length, SocketFlags.None, new AsyncCallback(RecvCallBack), state);
                    state.Connected = true;
                }
                state.workSocket.EndConnect(ar);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 接收回调
        /// </summary>
        /// <param name="ar"></param>
        private void RecvCallBack(IAsyncResult ar)
        {
            StateObject state = ar.AsyncState as StateObject;
            if (!state.Connected)
            {
                state.workSocket = null;
                return;
            }
            int readCount = 0;

            try
            {
                //调用这个函数来结束本次接收并返回接收到的数据长度
                readCount = state.workSocket.EndReceive(ar);
            }
            catch (Exception ex)
            {
                return;
            }

            try
            {
                if (readCount > 0)
                {
                    byte[] bytes = new byte[readCount];
                    Array.Copy(state.buffer, 0, bytes, 0, readCount);
                    qBytes.Enqueue(bytes);
                    m_ReciveEvent.Set();
                    if (update != null) 
                    {
                        update(encode.GetString(bytes));
                        uplog("[Receive]   " + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss") + "
" + encode.GetString(bytes));

                        using (FileStream fs = log.OpenWrite())
                        {
                            StreamWriter w = new StreamWriter(fs);
                            w.BaseStream.Seek(0, SeekOrigin.End);
                            w.Write("Receive：[{0}]   {1}
", DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss"), encode.GetString(bytes));
                            w.Flush();
                            w.Close();
                        }

                    }
                    //String2JsonObject(encode.GetString(bytes));
                    if (state.Connected)
                        state.workSocket.BeginReceive(state.buffer, 0, state.buffer.Length, SocketFlags.None, new AsyncCallback(RecvCallBack), state);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);

                CloseSocket(state);
            }
        }

        /// <summary>
        /// 关闭连接
        /// </summary>
        /// <param name="state"></param>
        private void CloseSocket(StateObject state)
        {
            state.Connected = false;

            try
            {
                if (state.workSocket != null)
                    state.workSocket.Close();
                state.workSocket = null;
            }
            catch (Exception ex)
            {

            }
        }

        /// <summary>
        /// 守护线程
        /// </summary>
        private void GuardMethod()
        {
            while (true)
            {
                Thread.Sleep(3000);
                if (state.workSocket == null || state.Connected == false || state.workSocket.Connected == false)
                {
                    state.workSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    Start(false);
                }
            }
        }

        /// <summary>
        /// 提供拆包处理
        /// </summary>
        /// <returns></returns>
        public byte[] Revice()
        {
            byte[] buffer = null;
            if (qBytes.Count > 0)
            {
                try
                {
                    buffer = qBytes.Dequeue();
                }
                catch { }
            }
            return buffer;
        }

        private void String2JsonObject(string json)
        {

            
        }

        #endregion
    }

    #region 构造容器State
    /// <summary>
    /// 构造容器State
    /// </summary>
    internal class StateObject
    {
        /// <summary>
        /// Client socket.
        /// </summary>
        public Socket workSocket = null;

        /// <summary>
        /// Size of receive buffer.
        /// </summary>
        public const int BufferSize = 256;

        /// <summary>
        /// Receive buffer.
        /// </summary>
        public byte[] buffer = new byte[BufferSize];

        /// <summary>
        /// Received data string.
        /// </summary>
        public StringBuilder sb = new StringBuilder();

        public bool Connected = false;  
    }
    #endregion
}

以上代码是soket定义

=========================================================================================================

主窗体调用

            string ServerIP = "192.168.0.1";
            int ServerPort = 4031;


            client = new ClientSocket(ServerIP, ServerPort);
            client.Start(true);
            client.update += Resultdata;　　//委托接收Result
            client.uplog += updateLog;　　　//委托显示Send和Result的数据

Resultdata

/// <summary>
/// 服务器Callback
/// </summary>
/// <param name="result">数据</param>
public void Resultdata(string result)
{
    //to do
}

在主窗体显示Send和Result的数据

         public void updateLog(string logdata)
        {
            this.Dispatcher.Invoke(new Action(delegate
            {
                    Log.Inlines.Add(new Run(logdata + "
"));
                    scrollViewer1.ScrollToEnd();
            }));
        }