windows socket编程

最新推荐文章于 2024-12-25 22:48:25 发布

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#socket #windows #exception #stream #button #object

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本文提供了一个使用C#实现的服务端与C++实现的客户端之间的TCP通信实例。服务端通过指定端口监听并接受客户端连接，接收来自客户端的数据，并向客户端发送回应消息。

服务端C# （VC#.NET 2005）

private void button1_Click(object sender, EventArgs e)
        {
            if (this.textBox1.Text == "")
            {
                MessageBox.Show("请输入端口号！");
            }
            else
            {
                int portNum = Convert.ToInt32(this.textBox1.Text);
                
                TcpListener listener = new TcpListener(portNum);
                listener.Start();
                
                
                    this.richTextBox1.AppendText("Waiting for connection..." + "/r");

                    TcpClient client = listener.AcceptTcpClient();
                    this.richTextBox1.AppendText("Connection accepted." + "/r");

                    NetworkStream ns = client.GetStream();

                    byte[] byteTime = Encoding.Unicode.GetBytes(this.textBox2.Text);
                    
                    try
                    {                        
                        ns.Write(byteTime, 0, byteTime.Length);
                       
                        ns.Close();
                        client.Close();
                    }
                    catch (Exception ee)
                    {
                        MessageBox.Show(ee.ToString());
                    }
                
                listener.Stop();
            }
        }

客户端C++ （VC2005）

void CTecClientDlg::OnBnClickedbtnlogin()
{
    WORD version;
   WSADATA wsaData;
   int rVal=0;
   version=MAKEWORD(1,1);
   WSAStartup(version,(LPWSADATA)&wsaData);

   SOCKET theSocket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
   if(theSocket==SOCKET_ERROR)
   {
       return;
   }

   SOCKADDR_IN serverInfo;
   serverInfo.sin_family=PF_INET;

   serverInfo.sin_addr.s_addr=inet_addr("192.168.0.3");
   serverInfo.sin_port=htons(6603);
   rVal=connect(theSocket,(LPSOCKADDR)&serverInfo,sizeof(serverInfo));
   if(rVal==SOCKET_ERROR)
   {
       return;
   }

   wchar_t buf[8]={0};
   memset(buf,0,8*sizeof(wchar_t));
   char sendB[6]="hi";
   send(theSocket,sendB,strlen(sendB),0);
   int strLast=recv(theSocket,(char*)buf,8*sizeof(wchar_t),0);        
   AfxMessageBox((const wchar_t*)buf);

   closesocket(theSocket);
   WSACleanup();

}