using System;using System.Windows.Forms;using System.Net;using System.Net.Sockets;namespace SocketClient{/// <summary>/// SocketClient 的摘要说明。/// </summary>public class SocketClient : System.Windows.Forms.Form{private System.Windows.Forms.Label label3;private System.Windows.Forms.Label label2;private System.Windows.Forms.Label label1;private System.Windows.Forms.Button buttonDisconnect;private System.Windows.Forms.TextBox textBoxIP;private System.Windows.Forms.Label label5;private System.Windows.Forms.Button buttonConnect;private System.Windows.Forms.TextBox textBoxPort;private System.Windows.Forms.RichTextBox richTextRxMessage;private System.Windows.Forms.Label label4;private System.Windows.Forms.TextBox textBoxConnectStatus;private System.Windows.Forms.RichTextBox richTextTxMessage;private System.Windows.Forms.Button buttonSendMessage;private System.Windows.Forms.Button buttonClose;byte[] m_dataBuffer = new byte [10];IAsyncResult m_result;public AsyncCallback m_pfnCallBack ;private System.Windows.Forms.Button btnClear;public Socket m_clientSocket; public delegate void UpdateRichEditCallback(string text);public SocketClient(){//// Windows 窗体设计器支持所必需的//InitializeComponent();textBoxIP.Text = GetIP();}[STAThread]public static void Main(string[] args){Application.Run(new SocketClient());}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要使用代码编辑器修改/// 此方法的内容。/// </summary>private void InitializeComponent() { this.buttonClose = new System.Windows.Forms.Button(); this.buttonSendMessage = new System.Windows.Forms.Button(); this.richTextTxMessage = new System.Windows.Forms.RichTextBox(); this.textBoxConnectStatus = new System.Windows.Forms.TextBox(); this.label4 = new System.Windows.Forms.Label(); this.richTextRxMessage = new System.Windows.Forms.RichTextBox(); this.textBoxPort = new System.Windows.Forms.TextBox(); this.buttonConnect = new System.Windows.Forms.Button(); this.label5 = new System.Windows.Forms.Label(); this.textBoxIP = new System.Windows.Forms.TextBox(); this.buttonDisconnect = new System.Windows.Forms.Button(); this.label1 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); this.label3 = new System.Windows.Forms.Label(); this.btnClear = new System.Windows.Forms.Button(); this.SuspendLayout(); // // buttonClose // this.buttonClose.Location = new System.Drawing.Point(411, 233); this.buttonClose.Name = "buttonClose"; this.buttonClose.Size = new System.Drawing.Size(77, 25); this.buttonClose.TabIndex = 14; this.buttonClose.Text = "关闭"; this.buttonClose.Click += new System.EventHandler(this.ButtonCloseClick); // // buttonSendMessage // this.buttonSendMessage.Location = new System.Drawing.Point(10, 198); this.buttonSendMessage.Name = "buttonSendMessage"; this.buttonSendMessage.Size = new System.Drawing.Size(238, 26); this.buttonSendMessage.TabIndex = 12; this.buttonSendMessage.Text = "发送消息"; this.buttonSendMessage.Click += new System.EventHandler(this.ButtonSendMessageClick); // // richTextTxMessage // this.richTextTxMessage.Location = new System.Drawing.Point(10, 86); this.richTextTxMessage.Name = "richTextTxMessage"; this.richTextTxMessage.Size = new System.Drawing.Size(238, 104); this.richTextTxMessage.TabIndex = 8; this.richTextTxMessage.Text = ""; // // textBoxConnectStatus // this.textBoxConnectStatus.BackColor = System.Drawing.SystemColors.Control; this.textBoxConnectStatus.BorderStyle = System.Windows.Forms.BorderStyle.None; this.textBoxConnectStatus.ForeColor = System.Drawing.SystemColors.HotTrack; this.textBoxConnectStatus.Location = new System.Drawing.Point(72, 241); this.textBoxConnectStatus.Name = "textBoxConnectStatus"; this.textBoxConnectStatus.ReadOnly = true; this.textBoxConnectStatus.Size = new System.Drawing.Size(166, 14); this.textBoxConnectStatus.TabIndex = 5; this.textBoxConnectStatus.Text = "Not Connected"; // // label4 // this.label4.Location = new System.Drawing.Point(10, 69); this.label4.Name = "label4"; this.label4.Size = new System.Drawing.Size(110, 17); this.label4.TabIndex = 2; this.label4.Text = "将消息发送到服务器"; // // richTextRxMessage // this.richTextRxMessage.BackColor = System.Drawing.SystemColors.InactiveCaptionText; this.richTextRxMessage.Location = new System.Drawing.Point(256, 86); this.richTextRxMessage.Name = "richTextRxMessage"; this.richTextRxMessage.ReadOnly = true; this.richTextRxMessage.Size = new System.Drawing.Size(232, 138); this.richTextRxMessage.TabIndex = 9; this.richTextRxMessage.Text = ""; // // textBoxPort // this.textBoxPort.Location = new System.Drawing.Point(104, 34); this.textBoxPort.Name = "textBoxPort"; this.textBoxPort.Size = new System.Drawing.Size(58, 21); this.textBoxPort.TabIndex = 7; this.textBoxPort.Text = "8000"; // // buttonConnect // this.buttonConnect.BackColor = System.Drawing.SystemColors.HotTrack; this.buttonConnect.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); this.buttonConnect.ForeColor = System.Drawing.Color.Yellow; this.buttonConnect.Location = new System.Drawing.Point(304, 7); this.buttonConnect.Name = "buttonConnect"; this.buttonConnect.Size = new System.Drawing.Size(86, 51); this.buttonConnect.TabIndex = 10; this.buttonConnect.Text = "连接服务器"; this.buttonConnect.UseVisualStyleBackColor = false; this.buttonConnect.Click += new System.EventHandler(this.ButtonConnectClick); // // label5 // this.label5.Location = new System.Drawing.Point(0, 241); this.label5.Name = "label5"; this.label5.Size = new System.Drawing.Size(56, 17); this.label5.TabIndex = 4; this.label5.Text = "连接状态"; // // textBoxIP // this.textBoxIP.Location = new System.Drawing.Point(104, 7); this.textBoxIP.Name = "textBoxIP"; this.textBoxIP.Size = new System.Drawing.Size(152, 21); this.textBoxIP.TabIndex = 6; // // buttonDisconnect // this.buttonDisconnect.BackColor = System.Drawing.Color.Red; this.buttonDisconnect.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); this.buttonDisconnect.ForeColor = System.Drawing.Color.Yellow; this.buttonDisconnect.Location = new System.Drawing.Point(401, 7); this.buttonDisconnect.Name = "buttonDisconnect"; this.buttonDisconnect.Size = new System.Drawing.Size(87, 51); this.buttonDisconnect.TabIndex = 11; this.buttonDisconnect.Text = "断开服务器"; this.buttonDisconnect.UseVisualStyleBackColor = false; this.buttonDisconnect.Click += new System.EventHandler(this.ButtonDisconnectClick); // // label1 // this.label1.Location = new System.Drawing.Point(10, 9); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(86, 17); this.label1.TabIndex = 0; this.label1.Text = "服务器IP地址"; // // label2 // this.label2.Location = new System.Drawing.Point(10, 36); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(70, 17); this.label2.TabIndex = 1; this.label2.Text = "服务器端口"; // // label3 // this.label3.Location = new System.Drawing.Point(256, 69); this.label3.Name = "label3"; this.label3.Size = new System.Drawing.Size(128, 17); this.label3.TabIndex = 3; this.label3.Text = "从服务器发过来的消息"; // // btnClear // this.btnClear.Location = new System.Drawing.Point(328, 233); this.btnClear.Name = "btnClear"; this.btnClear.Size = new System.Drawing.Size(77, 25); this.btnClear.TabIndex = 13; this.btnClear.Text = "清空"; this.btnClear.Click += new System.EventHandler(this.btnClear_Click); // // SocketClient // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(496, 262); this.Controls.Add(this.btnClear); this.Controls.Add(this.buttonDisconnect); this.Controls.Add(this.buttonSendMessage); this.Controls.Add(this.label5); this.Controls.Add(this.buttonClose); this.Controls.Add(this.textBoxConnectStatus); this.Controls.Add(this.label4); this.Controls.Add(this.label3); this.Controls.Add(this.buttonConnect); this.Controls.Add(this.textBoxPort); this.Controls.Add(this.label2); this.Controls.Add(this.label1); this.Controls.Add(this.textBoxIP); this.Controls.Add(this.richTextTxMessage); this.Controls.Add(this.richTextRxMessage); this.MaximizeBox = false; this.MinimizeBox = false; this.Name = "SocketClient"; this.Text = "Socket Client"; this.ResumeLayout(false); this.PerformLayout();}#endregionvoid ButtonConnectClick(object sender, System.EventArgs e){// 连接到服务器if(textBoxIP.Text == "" || textBoxPort.Text == ""){MessageBox.Show("IP Address and Port Number are required to connect to the Server/n");return;}try{UpdateControls(false);// 建立一个socket实例m_clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);// 转换成IP路由的形式IPAddress ip = IPAddress.Parse(textBoxIP.Text);int iPortNo = System.Convert.ToInt16(textBoxPort.Text);// 将网络端点表示为 IP 地址和端口号。IPEndPoint ipEnd = new IPEndPoint(ip, iPortNo);// 建立与远程主机的连接m_clientSocket.Connect(ipEnd);if(m_clientSocket.Connected){UpdateControls(true);// 等待异步传输的数据WaitForData();}}catch(SocketException se){string str;str = "Connection failed, is the server running?/n" + se.Message;MessageBox.Show(str);UpdateControls(false);}}void ButtonDisconnectClick(object sender, System.EventArgs e){// 与服务器断开连接if (m_clientSocket != null){m_clientSocket.Close();m_clientSocket = null;UpdateControls(false);}}void ButtonSendMessageClick(object sender, System.EventArgs e){// 发送消息try{string msg = richTextTxMessage.Text;// 发送字符串NetworkStream networkStream = new NetworkStream(m_clientSocket);System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(networkStream);streamWriter.WriteLine(msg);streamWriter.Flush();/* Use the following code to send bytesbyte[] byData = System.Text.Encoding.ASCII.GetBytes(objData.ToString ());if(m_clientSocket != null){m_clientSocket.Send (byData);}*/}catch(SocketException se){MessageBox.Show(se.Message);}}private void btnClear_Click(object sender, System.EventArgs e){// 清空消息richTextRxMessage.Clear();}void ButtonCloseClick(object sender, System.EventArgs e){// 关闭窗体if (m_clientSocket != null){m_clientSocket.Close();m_clientSocket = null;}Close();}string GetIP(){// 获取本机IPstring strHostName = Dns.GetHostName();// 查找主机名IPHostEntry iphostentry = Dns.GetHostByName(strHostName);// 抓取第一个IP地址string IPStr = "";foreach(IPAddress ipaddress in iphostentry.AddressList){IPStr = ipaddress.ToString();return IPStr;}return IPStr;}private void UpdateControls( bool connected ) {// 更新控件buttonConnect.Enabled = !connected;buttonDisconnect.Enabled = connected;string connectStatus = connected? "Connected" : "Not Connected";textBoxConnectStatus.Text = connectStatus;}public void WaitForData(){// 等待接收数据try{if (m_pfnCallBack == null){m_pfnCallBack = new AsyncCallback(OnDataReceived);}SocketPacket theSocPkt = new SocketPacket();theSocPkt.thisSocket = m_clientSocket;// 开始监听数据接收m_result = m_clientSocket.BeginReceive(theSocPkt.dataBuffer,0, theSocPkt.dataBuffer.Length,SocketFlags.None,m_pfnCallBack,theSocPkt);}catch(SocketException se){MessageBox.Show(se.Message);}} //public void OnDataReceived(IAsyncResult asyn) //{ // // 当数据到达时，接收数据 // try // { // SocketPacket theSockId = (SocketPacket)asyn.AsyncState; // int iRx = theSockId.thisSocket.EndReceive(asyn); // char[] chars = new char[iRx + 1]; // System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder(); // int charLen = d.GetChars(theSockId.dataBuffer, 0, iRx, chars, 0); // System.String szData = new System.String(chars); // richTextRxMessage.Text = richTextRxMessage.Text + szData; // WaitForData(); // } // catch (ObjectDisposedException) // { // System.Diagnostics.Debugger.Log(0, "1", "/nOnDataReceived: Socket has been closed/n"); // } // catch (SocketException se) // { // MessageBox.Show(se.Message); // } //} public void OnDataReceived(IAsyncResult asyn) { SocketPacket socketData = (SocketPacket)asyn.AsyncState; int iRx = socketData.thisSocket.EndReceive(asyn); //int iRx = theSockId.thisSocket.EndReceive(asyn); char[] chars = new char[iRx + 1]; System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder();int charLen = d.GetChars(socketData.dataBuffer, 0, iRx, chars, 0); System.String szData = new System.String(chars); richTextRxMessage.AppendText(szData); WaitForData(); }public class SocketPacket{public System.Net.Sockets.Socket thisSocket;public byte[] dataBuffer = new byte[1024];}private void AppendToRichEditControl(string msg) {if (InvokeRequired) {object[] pList = {msg}; richTextRxMessage.BeginInvoke(new UpdateRichEditCallback(OnUpdateRichEdit), pList);}else{OnUpdateRichEdit(msg);}}private void OnUpdateRichEdit(string msg) { richTextRxMessage.AppendText(msg);}}} //public void OnDataReceived(IAsyncResult asyn) // { // // ?????????????????? // SocketPacket socketData = (SocketPacket)asyn.AsyncState; // try // { // // ??EndReceive()????BeginReceive()????? // // ???????????????? // int iRx = socketData.m_currentSocket.EndReceive(asyn); // char[] chars = new char[iRx + 1]; // // ?????????? // System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder(); // int charLen = d.GetChars(socketData.dataBuffer, // 0, iRx, chars, 0); // System.String szData = new System.String(chars); // string msg = "" + socketData.m_clientNumber + ":"; // AppendToRichEditControl(msg + szData); // // ???????????? // string replyMsg = "Server Reply:" + szData.ToUpper(); // // ?????byte?? // //byte[] byData = System.Text.Encoding.ASCII.GetBytes(replyMsg); // //Socket workerSocket = (Socket)socketData.m_currentSocket; // NetworkStream netWorkStream = new NetworkStream(m_mainSocket); // System.IO.StreamWriter sw = new System.IO.StreamWriter(netWorkStream); // sw.WriteLine(replyMsg); // sw.Flush(); // //workerSocket.Send(byData); // // ????????? // WaitForData(socketData.m_currentSocket, socketData.m_clientNumber); // } // catch (ObjectDisposedException ) // { // System.Diagnostics.Debugger.Log(0,"1","/nOnDataReceived: Socket has been closed/n"); // } // catch(SocketException se) // { // if(se.ErrorCode == 10054) // ???????? // { // // ???????? // string msg = "Client " + socketData.m_clientNumber + " Disconnected" + "/n"; // AppendToRichEditControl(msg); // // ?worker socket???????? // m_workerSocketList[socketData.m_clientNumber - 1] = null; // UpdateClientListControl(); // } // else // { // MessageBox.Show(se.Message); // } // } // }
