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Flash使用xmlsocket与.net服务端异步通信

Kalet Kalet 发表于2010-06-19 16:05:59 浏览637 评论0

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在.net中定义以下

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


namespace ClientSocket
{
 public class AsynchronousSocketListener
 {
  //异步socket诊听

  // Incoming data from client.从客户端传来的数据
  public static string data = null;

  // Thread signal.线程 用一个指示是否将初始状态设置为终止的布尔值初始化 ManualResetEvent 类的新实例。
  public static ManualResetEvent allDone = new ManualResetEvent(false);

  public AsynchronousSocketListener()
  {
  }

  public static void StartListening()
  {
   // Data buffer for incoming data. 传入数据缓冲
   byte[] bytes = new Byte[1024];
   // Establish the local endpoint for the socket. 建立本地端口
   // The DNS name of the computer
   // running the listener is "host.contoso.com".
   IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
   IPAddress ipAddress = ipHostInfo.AddressList[0];
  
   IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11001);

   // Create a TCP/IP socket.
   Socket listener = new Socket(AddressFamily.InterNetwork,
    SocketType.Stream, ProtocolType.Tcp );

   // Bind the socket to the local endpoint and listen for incoming connections.绑定端口和数据
   try
   {
    listener.Bind(localEndPoint);
    listener.Listen(100);

    while (true)
    {
     // Set the event to nonsignaled state.设置无信号状态的事件
     allDone.Reset();

     // Start an asynchronous socket to listen for connections.重新 启动异步连接
     Console.WriteLine("Waiting for a connection..."+localEndPoint.Address+" : "+localEndPoint.Port);
     listener.BeginAccept(
      new AsyncCallback(AcceptCallback),
      listener );

     // Wait until a connection is made before continuing.等待连接创建后继续
     allDone.WaitOne();
    }

   }
   catch (Exception e)
   {
    Console.WriteLine(e.ToString());
   }

   Console.WriteLine("\nPress ENTER to continue...");
   Console.Read();
   
  }

  public static void AcceptCallback(IAsyncResult ar)
  {
   // Signal the main thread to continue.接受回调方法 该方法的此节向主应用程序线程发出信号,让它继续处理并建立与客户端的连接
   allDone.Set();

   // Get the socket that handles the client request.获取客户端请求句柄
   Socket listener = (Socket) ar.AsyncState;
   Socket handler = listener.EndAccept(ar);

   // Create the state object.
   StateObject state = new StateObject();
   state.workSocket = handler;
   handler.BeginReceive( state.buffer, 0, StateObject.BufferSize, 0,
    new AsyncCallback(ReadCallback), state);
  }

  /// <summary>
  /// 与接受回调方法一样,读取回调方法也是一个 AsyncCallback 委托。该方法将来自客户端套接字的一个或多个字节读入数据缓冲区,然后再次调用 BeginReceive 方法,直到客户端发送的数据完成为止。从客户端读取整个消息后,在控制台上显示字符串,并关闭处理与客户端的连接的服务器套接字。
  /// </summary>
  /// <param name="ar">IAsyncResult 委托</param>
  public static void ReadCallback(IAsyncResult ar)
  {
   String content = String.Empty;
   Console.WriteLine("收到连接信号");
   // Retrieve the state object and the handler socket创建自定义的状态对象
   // from the asynchronous state object.
   StateObject state = (StateObject) ar.AsyncState;
   Socket handler = state.workSocket;//处理的句柄

   // Read data from the client socket. 读出
   int bytesRead = handler.EndReceive(ar);

   if (bytesRead > 0)
   {
    Console.WriteLine("数据量 = "+bytesRead);
    // There  might be more data, so store the data received so far.
    state.sb.Append(Encoding.UTF8.GetString(
     state.buffer,0,bytesRead));
   
    // Check for end-of-file tag. If it is not there, read
    // more data.
    content = state.sb.ToString();
    if (content.IndexOf("<") > -1)
    {
     // All the data has been read from the
     // client. Display it on the console.
     Console.WriteLine("Read {0} bytes from socket. \n Data : {1}",
      content.Length, content );
     // Echo the data back to the client.
     Send(handler, "回执:"+content);
    }
    else
    {
     // Not all data received. Get more.
     handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
      new AsyncCallback(ReadCallback), state);
    }
   }
  }

  private static void Send(Socket handler, String data)
  {
   // Convert the string data to byte data using UTF8 encoding.
   byte[] byteData = Encoding.UTF8.GetBytes(data);

   // Begin sending the data to the remote device.
   handler.BeginSend(byteData, 0, byteData.Length, 0,
    new AsyncCallback(SendCallback), handler);
  }
  /// <summary>
  /// 发送
  /// </summary>
  /// <param name="ar"></param>
  private static void SendCallback(IAsyncResult ar)
  {
   try
   {
    // Retrieve the socket from the state object.
    Socket handler = (Socket) ar.AsyncState;

    // Complete sending the data to the remote device.向远端发送数据
    int bytesSent = handler.EndSend(ar);
    Console.WriteLine("Sent {0} bytes to client.", bytesSent);

    handler.Shutdown(SocketShutdown.Both);
    handler.Close();

   }
   catch (Exception e)
   {
    Console.WriteLine(e.ToString());
   }
  }


   public static int Main(String[] args)
   {
      StartListening();
      return 0;
    }
 }

}

Flash端

var socket:XMLSocket = new XMLSocket();
socket.onConnect = function(success:Boolean) {
 if (success) {
  trace("Connection succeeded!");
 } else {
  trace("Connection failed!");
 }
};
if (!socket.connect("127.0.0.1", 11001)) {
 trace("Connection failed!");
}
socket.onXML = function(doc) {
 /*var e = doc.firstChild;
     if (e != null && e.nodeName == "MESSAGE") {
         displayMessage(e.attributes.user, e.attributes.text);
     }*/
 trace(""+String(doc));
};
//
var my_xml:XML = new XML();
var myLogin:XMLNode = my_xml.createElement("login");
myLogin.attributes.username = "hehe";
myLogin.attributes.password = "1234";
my_xml.appendChild(myLogin);
socket.send(my_xml);

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