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C# Socket基础(一)之启动异步服务监听

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//通知一个或多个正在等待的线程已发生事件。
ManualResetEvent manager = new ManualResetEvent(false);

 

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 1         //负责监听的套接字
private Socket socketServer; 2 /// <summary> 3 /// 启动服务 4 /// </summary> 5 private void CreateSocketService() 6 { 7 try 8 { 9 //获取IP 10 var address = IPAddress.Parse(txtIP.Text.Trim()); 11 //创建一个包含ip port 的网络节点对象 12 var ipPoint = new IPEndPoint(address, Convert.ToInt32(txtPort.Text.Trim())); 13 //创建一个套接字socket,参数(IP4寻址协议,流式连接,使用TCP协议传输数据) 14 socketServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); 15 //将负责监听的套接字绑定到唯一的IP和端口上 16 socketServer.Bind(ipPoint); 17 //设置监听队列的长度,同时100个队列 18 socketServer.Listen(100); 19 //线程开始监听客户端的请求 20 threadService = new Thread(StartSocketService); 21 //设置线程为后台线程 22 threadService.IsBackground = true; 23 //启动线程 24 threadService.Start(); 25 //显示消息 26 ShowMsg("服务器监听开启成功!"); 27
28 29 } 30 catch (Exception e) 31 { 32
33 ShowMsg(e.Message); 34 } 35 }
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 1        /// <summary>
 2         /// 启动服务监听
 3         /// </summary>
 4         private void StartSocketService()
 5         {
 6             while (true)
 7             {
 8                 try
 9                 {
              //将事件状态设置为非终止状态,导致线程阻止 10 manager.Reset(); 11 //开始监听客户端的连接请求 12 var args = new SocketAsyncEventArgs(); 13 args.Completed += args_Completed; 14 socketServer.AcceptAsync(args);
              //阻止当前线程,直到当前 WaitHandle 收到信号。 15 manager.WaitOne(); 16 } 17 catch (Exception ex) 18 { 19 20 ShowMsg(ex.Message); 21 break; 22 } 23 } 24 }
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1         void args_Completed(object sender, SocketAsyncEventArgs e)
2         {
3             //监听完成客户端的请求,一但监听到返回新的套接字
4             var clientSocket = e.AcceptSocket;
5             //启动线程获取客户端发来的消息
6             if (clientSocket == null) return;
         //开始接受消息.......
7       //该函数未写完,第二篇补全
8 }
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1         void ShowMsg(string message)
2         {
3            //显示消息
4             txtConneMsg.AppendText("\r\n" + DateTime.Now + "\r\n\r\n" + message + "\r\n");
5         }    

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ok 服务监听就启动成功了,正等待客户端连接。

 

 

 

 ManualResetEvent reviceManager = new ManualResetEvent(false);

 

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 1 public void args_Completed(object sender, SocketAsyncEventArgs e)
 2  {
 3      //监听完成客户端的请求,一但监听到返回新的套接字
 4      var clientSocket = e.AcceptSocket;
 5      
 6     if (clientSocket == null) return;
 7      //启动线程获取客户端发来的消息
 8      //这部分为接收消息
 9       var t = new Thread(GetClientMsg);
10      //设置线程为后台线程
11        t.IsBackground = true;
12       //启动线程
13        t.Start(clientSocket);
14       //显示信息
15       ShowMsg(clientSocket.RemoteEndPoint + "上线了");
16      //将事件状态设置为终止状态,允许一个或多个等待线程继续
17      manager.Set();
18  }
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建议对照  C# Socket基础(一)之启动异步服务侦听 来看。

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 1    private void GetClientMsg(object socket)
 2    {
 3        var socketClient = socket as Socket;
 4        if (socketClient == null) return;
 5         while (true)
 6          {
 7            try
 8              {
 9                  reviceManager.Reset();
10                  var bytes = new byte[1024 * 1024 * 4];
11                  var receiveArgs = new SocketAsyncEventArgs();
            //设置缓冲区 12 receiveArgs.SetBuffer(bytes, 0, bytes.Length); 13 receiveArgs.Completed += receiveArgs_Completed;
            //开始异步接收 14 socketClient.ReceiveAsync(receiveArgs); 15 reviceManager.WaitOne(); 16 } 17 catch (Exception ex) 18 { 19 20 //显示异常消息 21 ShowMsg(ex.Message);
22 }
     }

}
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 接收消息完成回调事件

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1  void receiveArgs_Completed(object sender, SocketAsyncEventArgs e)
2   {
3      var socketClient = sender as Socket;
4      var bytes = e.Buffer;
5      ShowMsg(socketClient.RemoteEndPoint + "说:" + System.Text.Encoding.UTF8.GetString(bytes));
6      reviceManager.Set();
7   }
 
 

又与大家见面,看不懂的随时问。

 

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 1        private Thread threadClient;//客户端线程
 2        private Socket socketClient;//客户端套接字
 3         /// <summary>
 4         /// 创建套接字连接到服务端
 5         /// </summary>
 6         private void CreateSocketConnection()
 7         {
 8             try
 9             {
10                 //创建一个客户端的套接字 参数(IP4寻址协议,流连接方式,TCP数据传输协议)
11                 socketClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
12                 //获取IP
13                 IPAddress address = IPAddress.Parse(txtIP.Text.Trim());
14                 //创建一个包含IP和端口号的网络节点对象
15                 IPEndPoint ipPoint = new IPEndPoint(address, Convert.ToInt32(txtPort.Text.Trim()));
16                 // 连接服务端
17                 socketClient.Connect(ipPoint);
18                 //创建一个线程,接受服务端发来的数据
19                 threadClient = new Thread(ReceiveService);
20                 //设置线程为后台线程
21                 threadClient.IsBackground = true;
22                 //启动线程连接服务端
23                 threadClient.Start();
24                //显示消息
25                 ShowMsg("与服务器" + txtIP.Text.Trim() + ":" + txtPort.Text + "成功建立连接!");
26 
27             }
28             catch (Exception)
29             {
30              
31                ShowMsg(txtIP.Text.Trim() + ":" + txtPort.Text + "服务器未启动!");
32                  
33             }
34 
35         }
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 客户端接收消息

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    private void ReceiveService()
    {
            while (true)
            {
                try
                {
                    int num = -1;
                   var b = new byte[1024 * 1024 * 4];
                    int length = socketClient.Receive(b);
                    var msg = System.Text.Encoding.UTF8.GetString(b,0,length);
                    ShowMsg(socketClient.RemoteEndPoint.ToString() + "对您: " + msg);

                }
                catch (Exception ex)
                {
                    ShowMsg(ex.Message);
                    break;

                }
            }
       }
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1    private void ShowMsg(string msg)
2    {
3      txtConneMsg.AppendText("\r\n" + DateTime.Now + "\r\n\r\n" + msg + "\r\n");
4    }

 

客户端:

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服务器:

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客户端接收到消息:

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private Socket socketClient;//客户端套接字,关于实例化请参考C# Socket基础(三)之客户端连接服务器和接收消息


 客户端发送消息

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 1        /// <summary>
 2         /// 发送数据到服务端
 3         /// </summary>
 4         private void Send()
 5         {
 6             if (socketClient == null)
 7             {
 8 
 9                 ShowMsg("服务器未启动!");
10                 return;
11             }
12             byte[] b = System.Text.Encoding.UTF8.GetBytes(txtSend.Text.Trim());
13             //客户端向服务器发送消息
14             socketClient.Send(b);
15             //清空文本
16 
17             ShowMsg("您对" + socketClient.RemoteEndPoint.ToString() + "说:" + txtSend.Text.Trim());
18             txtSend.Text = "";
19         }
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关于  ShowMsg(string message);是自定义的函数,在C# Socket基础(一)之启动异步服务侦听

好了,到这里就要告一段落了,实现了基本的客户端和服务器采用TCP协议通信。 

看看效果吧:

客户端:

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服务器:

bubuko.com,布布扣

 

C# Socket基础(一)之启动异步服务监听,布布扣,bubuko.com

C# Socket基础(一)之启动异步服务监听

标签:style   blog   http   java   color   使用   

原文地址:http://www.cnblogs.com/aaa6818162/p/3862159.html

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