c#中异步基于消息通信的完成端口的TCP/IP协议的组件实现(客户端-源代码)

来源：

http://www.cnblogs.com/feishan/archive/2008/06/25/1229691.html
http://blog.pfan.cn/Csharpsky/26657.html

 

客户端-源代码:

using System;using System.IO;using System.ComponentModel;using System.Collections;using System.Diagnostics;using System.Net;using System.Net.Sockets;using System.Threading;namespace MyKJ{ /**//// <summary> /// MyTcpIpClient 提供在Net TCP_IP 协议上基于消息的客户端 /// </summary> public class MyTcpIpClient : System.ComponentModel.Component { private int bufferSize=2048; private string tcpIpServerIP="127.0.0.1"; private int tcpIpServerPort=11000; private Socket ClientSocket=null; private ManualResetEvent connectDone = new ManualResetEvent(false); private ManualResetEvent sendDone = new ManualResetEvent(false); private void ConnectCallback(IAsyncResult ar) { try { Socket client = (Socket) ar.AsyncState; client.EndConnect(ar); } catch (Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } finally { connectDone.Set(); } } private void SendCallback(IAsyncResult ar) { try { Socket client = (Socket) ar.AsyncState; int bytesSent = client.EndSend(ar); //Console.WriteLine(bytesSent); } catch (Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } finally { sendDone.Set(); } } private void ReceiveCallback(IAsyncResult ar) { Socket handler=null; try { lock(ar) { StateObject state = (StateObject) ar.AsyncState; handler = state.workSocket; int bytesRead = handler.EndReceive(ar); if (bytesRead > 0) { int ReadPiont=0; while(ReadPiont<bytesRead) { if(state.Cortrol==0 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<24)&0xff000000; state.packSize=bi1; ReadPiont++; state.Cortrol=1; } if(state.Cortrol==1 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<16)&0x00ff0000; state.packSize=state.packSize+bi1; ReadPiont++; state.Cortrol=2; } if(state.Cortrol==2 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<8)&0x0000ff00; state.packSize=state.packSize+bi1; ReadPiont++; state.Cortrol=3; } if(state.Cortrol==3 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=bi1&0xff; state.packSize=state.packSize+bi1-4; ReadPiont++; state.Cortrol=4; } if(state.Cortrol==4 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<24)&0xff000000; state.residualSize=bi1; ReadPiont++; state.Cortrol=5; state.packSize-=1; } if(state.Cortrol==5 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<16)&0x00ff0000; state.residualSize=state.residualSize+bi1; ReadPiont++; state.Cortrol=6; state.packSize-=1; } if(state.Cortrol==6 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=(bi1<<8)&0x0000ff00; state.residualSize=state.residualSize+bi1; ReadPiont++; state.Cortrol=7; state.packSize-=1; } if(state.Cortrol==7 && ReadPiont<bytesRead) { long bi1=state.buffer[ReadPiont]; bi1=bi1&0xff; state.residualSize=state.residualSize+bi1; state.Datastream.SetLength(0); state.Datastream.Position=0; ReadPiont++; state.Cortrol=8; state.packSize-=1; } if(state.Cortrol==8 && ReadPiont<bytesRead) { int bi1=bytesRead-ReadPiont; int bi2=(int)(state.residualSize-state.Datastream.Length); if(bi1>=bi2) { state.Datastream.Write(state.buffer,ReadPiont,bi2); ReadPiont+=bi2; OnInceptEvent(new InceptEventArgs(state.Datastream,handler)); state.Cortrol=9; state.packSize-=bi2; } else { state.Datastream.Write(state.buffer,ReadPiont,bi1); ReadPiont+=bi1; state.packSize-=bi1; } } if(state.Cortrol==9 && ReadPiont<bytesRead) { int bi1=bytesRead-ReadPiont; if(bi1<state.packSize) { state.packSize=state.packSize-bi1; ReadPiont+=bi1; } else { state.Cortrol=0; ReadPiont+=(int)state.packSize; } } } } else { throw(new Exception("读入的数据小于1bit")); } if(handler.Connected==true) { handler.BeginReceive(state.buffer,0,bufferSize,0, new AsyncCallback(ReceiveCallback), state); } } } catch (Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } } /**//// <summary> /// 连接服务器 /// </summary> public void Conn() { try { ClientSocket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp); IPAddress ipAddress = IPAddress.Parse(tcpIpServerIP); IPEndPoint remoteEP = new IPEndPoint(ipAddress, tcpIpServerPort); connectDone.Reset(); ClientSocket.BeginConnect(remoteEP,new AsyncCallback(ConnectCallback),ClientSocket); connectDone.WaitOne(); StateObject state = new StateObject(bufferSize,ClientSocket); ClientSocket.BeginReceive(state.buffer,0,bufferSize,0, new AsyncCallback(ReceiveCallback), state); } catch(Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } } /**//// <summary> /// 断开连接 /// </summary> public void Close() { try { if(ClientSocket.Connected==true) { ClientSocket.Shutdown(SocketShutdown.Both); ClientSocket.Close(); } } catch(Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } } /**//// <summary> /// 发送一个流数据 /// </summary> /// <param name="Astream">数据流</param> public void Send(Stream Astream) { try { if(ClientSocket.Connected==false) { throw(new Exception("没有连接服务器不可以发送信息!")); } Astream.Position=0; byte[] byteData=new byte[bufferSize]; int bi1=(int)((Astream.Length+8)/bufferSize); int bi2=(int)Astream.Length; if(((Astream.Length+8)%bufferSize)>0) { bi1=bi1+1; } bi1=bi1*bufferSize; byteData[0]=System.Convert.ToByte(bi1>>24); byteData[1]=System.Convert.ToByte((bi1&0x00ff0000)>>16); byteData[2]=System.Convert.ToByte((bi1&0x0000ff00)>>8); byteData[3]=System.Convert.ToByte((bi1&0x000000ff)); byteData[4]=System.Convert.ToByte(bi2>>24); byteData[5]=System.Convert.ToByte((bi2&0x00ff0000)>>16); byteData[6]=System.Convert.ToByte((bi2&0x0000ff00)>>8); byteData[7]=System.Convert.ToByte((bi2&0x000000ff)); int n = Astream.Read(byteData, 8, byteData.Length-8); while (n>0) { ClientSocket.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), ClientSocket); sendDone.WaitOne(); byteData=new byte[bufferSize]; n = Astream.Read(byteData,0,byteData.Length); } } catch (Exception e) { OnErrorEvent(new ErrorEventArgs(e)); } } /**//// <summary> /// 构造 /// </summary> /// <param name="container">父控件</param> public MyTcpIpClient(System.ComponentModel.IContainer container) { container.Add(this); InitializeComponent(); // // TODO: 在 InitializeComponent 调用后添加任何构造函数代码 // } /**//// <summary> /// 构造 /// </summary> public MyTcpIpClient() { InitializeComponent(); // // TODO: 在 InitializeComponent 调用后添加任何构造函数代码 // } Component Designer generated code#region Component Designer generated code /**//// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { } #endregion /**//// <summary> /// 要连接的服务器IP地址 /// </summary> public string TcpIpServerIP { get { return tcpIpServerIP; } set { tcpIpServerIP=value; } } /**//// <summary> /// 要连接的服务器所使用的端口 /// </summary> public int TcpIpServerPort { get { return tcpIpServerPort; } set { tcpIpServerPort=value; } } /**//// <summary> /// 缓冲器大小 /// </summary> public int BufferSize { get { return bufferSize; } set { bufferSize=value; } } /**//// <summary> /// 连接的活动状态 /// </summary> public bool Activ { get { if(ClientSocket==null) { return false; } return ClientSocket.Connected; } } /**//// <summary> /// 接收到数据引发的事件 /// </summary> public event InceptEvent Incept; /**//// <summary> /// 引发接收数据事件 /// </summary> /// <param name="e">接收数据</param> protected virtual void OnInceptEvent(InceptEventArgs e) { if (Incept != null) { Incept(this, e); } } /**//// <summary> /// 发生错误引发的事件 /// </summary> public event ErrorEvent Error; /**//// <summary> /// 引发错误事件 /// </summary> /// <param name="e">错误数据</param> protected virtual void OnErrorEvent(ErrorEventArgs e) { if (Error != null) { Error(this, e); } } } /**//// <summary> /// 接收数据事件 /// </summary> public class InceptEventArgs : EventArgs { private readonly Stream datastream; private readonly Socket clientSocket; /**//// <summary> /// 构造 /// </summary> /// <param name="Astream">接收到的数据</param> /// <param name="ClientSocket">接收的插座</param> public InceptEventArgs(Stream Astream,Socket ClientSocket) { datastream=Astream; clientSocket=ClientSocket; } /**//// <summary> /// 接受的数据流 /// </summary> public Stream Astream { get { return datastream;} } /**//// <summary> /// 接收的插座 /// </summary> public Socket ClientSocket { get { return clientSocket;} } } /**//// <summary> /// 定义接收委托 /// </summary> public delegate void InceptEvent(object sender, InceptEventArgs e); /**//// <summary> /// 错处事件 /// </summary> public class ErrorEventArgs : EventArgs { private readonly Exception error; /**//// <summary> /// 构造 /// </summary> /// <param name="Error">错误信息对象</param> public ErrorEventArgs(Exception Error) { error=Error; } /**//// <summary> /// 错误信息对象 /// </summary> public Exception Error { get { return error;} } } /**//// <summary> /// 错误委托 /// </summary> public delegate void ErrorEvent(object sender, ErrorEventArgs e); }