Socket的监听的三种方式

首先要打开监听

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Listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);

IPEndPoint hostEntry = new IPEndPoint(getLocalmachineIPAddress(), ServerPort);

Listener.Bind(hostEntry);

Listener.Listen(ConnectionsQueueLength);

　　

1. AcceptAsync异步方式

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socketEventArg = new SocketAsyncEventArgs();

socketEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(SocketEventArg_Completed);

socketEventArg.RemoteEndPoint = hostEntry;

socketEventArg.UserToken = Listener;

Listener.AcceptAsync(socketEventArg);

　　

void SocketEventArg_Completed(object sender, SocketAsyncEventArgs e)

{

    if (e.LastOperation == SocketAsyncOperation.Accept)

    {

        Socket acceptSocket = e.AcceptSocket;

 

        if (acceptSocket != null)

        {

             // 处理方法

        }

    }

 

    e.AcceptSocket = null;

    Listener.AcceptAsync(e);

 

}

　　

 

2. Accept方式 

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while (true)

{

    Socket acceptSocket = Listener.Accept();

 

    if (acceptSocket != null)

    {

        // 处理代码

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    }

}

　　

 3. BeginAccept方式

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while (true)

{

    Listener.BeginAccept(new AsyncCallback(AcceptCallBack), Listener);

}

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private void AcceptCallBack(IAsyncResult result)

{

    Socket acceptSocket = (Socket)result.AsyncState;

    // 处理方法

}