C#Socket TCP通訊測試&委託傳值到控制項&DirectSound錄音測試源碼

C#裡面Socket有非同步和同步之分，可參考:https://docs.microsoft.com/en-us/dotnet/framework/network-programming/socket-code-examples進行學習。網路上很多有關DirectSound的Socket聲音採集樣本，不過都是單獨的一個工具類（如：DirectSoundCapture），花了點時間實現了Socket的調用，順便總結分享一下。下圖為測試樣本：

Socket用戶端

using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Net.Sockets;using System.Text;using System.Threading.Tasks;/// <summary>/// 參考:https://docs.microsoft.com/en-us/dotnet/framework/network-programming/socket-code-examples/// </summary>namespace DirectsoundTest{    class SocketClient    {        /// <summary>        /// 啟動用戶端socket串連        /// </summary>        public static void StartClient(string data)        {            // Data buffer for incoming data.              byte[] bytes = new byte[1024];            // Connect to a remote device.              try            {                // Establish the remote endpoint for the socket.                  // This example uses port 11000 on the local computer.                  IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());                IPAddress ipAddress = ipHostInfo.AddressList[0];                IPEndPoint remoteEP = new IPEndPoint(ipAddress, 11000);                // Create a TCP/IP  socket.                  Socket sender = new Socket(ipAddress.AddressFamily,SocketType.Stream, ProtocolType.Tcp);                // Connect the socket to the remote endpoint. Catch any errors.                  try                {                    sender.Connect(remoteEP);                    Console.WriteLine("Socket connected to {0}",                        sender.RemoteEndPoint.ToString());                    // Encode the data string into a byte array.                      byte[] msg = Encoding.UTF8.GetBytes(data+"<EOF>");                    // Send the data through the socket.                      int bytesSent = sender.Send(msg);                    // Receive the response from the remote device.                      int bytesRec = sender.Receive(bytes);                    Console.WriteLine("Echoed test = {0}",                        Encoding.UTF8.GetString(bytes, 0, bytesRec));                    // Release the socket.                      sender.Shutdown(SocketShutdown.Both);                    sender.Close();                }                catch (ArgumentNullException ane)                {                    Console.WriteLine("ArgumentNullException : {0}", ane.ToString());                }                catch (SocketException se)                {                    Console.WriteLine("SocketException : {0}", se.ToString());                }                catch (Exception e)                {                    Console.WriteLine("Unexpected exception : {0}", e.ToString());                }            }            catch (Exception e)            {                Console.WriteLine(e.ToString());            }        }    }}

Socket服務端

using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Net.Sockets;using System.Text;using System.Threading.Tasks;/// <summary>/// 參考:https://docs.microsoft.com/en-us/dotnet/framework/network-programming/socket-code-examples/// </summary>namespace DirectsoundTest{    class SocketServer    {        // Incoming data from the client.          public static string data = null;        /// <summary>        /// 啟動服務端socket監聽        /// </summary>        public static void StartListening()        {            // Data buffer for incoming data.              byte[] bytes = new Byte[1024];            // Establish the local endpoint for the socket.              // Dns.GetHostName returns the name of the               // host running the application.              IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());            IPAddress ipAddress = ipHostInfo.AddressList[0];            IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);            // Create a TCP/IP socket.              Socket listener = new Socket(ipAddress.AddressFamily,SocketType.Stream, ProtocolType.Tcp);            // Bind the socket to the local endpoint and               // listen for incoming connections.              try            {                listener.Bind(localEndPoint);                listener.Listen(10);                // Start listening for connections.                  while (true)                {                    Console.WriteLine("Waiting for a connection...");                    // Program is suspended while waiting for an incoming connection.                      Socket handler = listener.Accept();                    data = null;                    // An incoming connection needs to be processed.                      while (true)                    {                        bytes = new byte[1024];                        int bytesRec = handler.Receive(bytes);                        data += Encoding.UTF8.GetString(bytes, 0, bytesRec);                        if (data.IndexOf("<EOF>") > -1)                        {                            break;                        }                    }                    // Show the data on the console.                      Console.WriteLine("Text received : {0}", data);                    // Echo the data back to the client.                      byte[] msg = Encoding.UTF8.GetBytes(data);                    handler.Send(msg);                    handler.Shutdown(SocketShutdown.Both);                    handler.Close();                }            }            catch (Exception e)            {                Console.WriteLine(e.ToString());            }            Console.WriteLine("\nPress ENTER to continue...");            Console.Read();        }    }}

表單&委託傳值

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading;using System.Threading.Tasks;using System.Windows.Forms;namespace DirectsoundTest{    public partial class FrmSocket : Form    {        public FrmSocket()        {            InitializeComponent();        }        /// <summary>        /// 啟動服務端socket串連        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void btnBindSocketServer_Click(object sender, EventArgs e)        {            btnBindSocketServer.Enabled = false;            Thread thread = new Thread(() => {                SocketServer.StartListening();            });            thread.IsBackground = true;            thread.Start();        }        // 委託設定值        delegate void setDataToListView(string data);        private void SetListViewData(string data)        {            if (this.listViewData.InvokeRequired)            {                setDataToListView stcb = new setDataToListView(SetListViewData);                this.Invoke(stcb, new object[] { data });            }            else            {                this.listViewData.Items.Add(data);            }        }        /// <summary>        /// 用戶端發送socket串連資料        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void btnSocketClient_Click(object sender, EventArgs e)        {            // 發送UTF8文字            byte[] buffer = Encoding.UTF8.GetBytes(this.textBox.Text.ToString());            string data = Encoding.UTF8.GetString(buffer);            Thread thread = new Thread(() => {                SocketClient.StartClient(data);                SetListViewData(data);//委託設定控制項的值            });            thread.IsBackground = true;            thread.Start();        }        /// <summary>        /// 開啟服務端        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void toolStripMenuItemServer_Click(object sender, EventArgs e)        {            if (!Setting.SERVER_BINDED)            {                FrmServer frmServer = new FrmServer();                frmServer.Show();                Setting.SERVER_BINDED = true;            }            else {                MessageBox.Show("服務端登入");            }        }        /// <summary>        /// 開啟用戶端        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void toolStripMenuItemClient_Click(object sender, EventArgs e)        {            FrmClient frmClient = new FrmClient();            frmClient.Show();        }    }}

委託寫法-實現跨線程修改ListView控制項值：

 // 委託設定值        delegate void setDataToListView(string data);        private void SetListViewData(string data)        {            if (this.listViewData.InvokeRequired)            {                setDataToListView stcb = new setDataToListView(SetListViewData);                this.Invoke(stcb, new object[] { data });            }            else            {                this.listViewData.Items.Add(data);            }        }

DirectSound錄音測試源碼 Socket例子和DirectSound錄音代碼都在Github上可以找到。

Github地址：https://github.com/BoonyaCSharp-ASP/DirectSoundTest