C#网络编程TCP通信实例程序简单设计

C#网络编程TCP通信实例程序简单设计
2017-12-21 15:33:14 newbie_xymt 阅读数 1511

采用自带 TcpClient和TcpListener设计一个Tcp通信的例子

只实现了TCP通信

通信程序截图：

压力测试服务端截图：

俩个客户端链接服务端测试截图：

服务端：

客户端

运行动态图

C#程序设计代码

BenXHSocket.dll主要代码设计

SocketObject类

[csharp] view plain copy
1. /*****************************************************
2. * ProjectName: BenXHSocket
3. * Description:
4. * ClassName: SocketObject
5. * CLRVersion: 4.0.30319.18408
6. * Author: JiYF
7. * NameSpace: BenXHSocket
8. * MachineName: JIYONGFEI
9. * CreateTime: 2017/3/31 12:13:06
10. * UpdatedTime: 2017/3/31 12:13:06
11. *****************************************************/
12. using System;
13. using System.Collections.Generic;
14. using System.Linq;
15. using System.Text;
16. using System.Net;
18. namespace BenXHSocket
19. {
20. /// <summary>
21. /// Socket基础类
22. /// </summary>
23. public abstract class SocketObject
24. {
25. /// <summary>
26. /// 初始化Socket方法
27. /// </summary>
28. /// <param name="ipAddress"></param>
29. /// <param name="port"></param>
30. public abstract void InitSocket(IPAddress ipAddress,int port);
31. public abstract void InitSocket(string ipAddress,int port);
33. /// <summary>
34. /// Socket启动方法
35. /// </summary>
36. public abstract void Start();
38. /// <summary>
39. /// Sockdet停止方法
40. /// </summary>
41. public abstract void Stop();
43. }
44. }
sockets类

[csharp] view plain copy
1. /*****************************************************
2. * ProjectName: BenXHSocket
3. * Description:
4. * ClassName: Sockets
5. * CLRVersion: 4.0.30319.18408
6. * Author: JiYF
7. * NameSpace: BenXHSocket
8. * MachineName: JIYONGFEI
9. * CreateTime: 2017/3/31 12:16:10
10. * UpdatedTime: 2017/3/31 12:16:10
11. *****************************************************/
12. using System;
13. using System.Collections.Generic;
14. using System.Linq;
15. using System.Text;
16. using System.Net;
17. using System.Net.Sockets;
19. namespace BenXHSocket
20. {
21. public class Sockets
22. {
23. /// <summary>
24. /// 接收缓冲区大小8k
25. /// </summary>
26. public byte[] RecBuffer = new byte[8 * 1024];
28. /// <summary>
29. /// 发送缓冲区大小8k
30. /// </summary>
31. public byte[] SendBuffer = new byte[8 * 1024];
33. /// <summary>
34. /// 异步接收后包的大小
35. /// </summary>
36. public int Offset { get;set;}
38. /// <summary>
39. /// 当前IP地址,端口号
40. /// </summary>
41. public IPEndPoint Ip { get; set; }
42. /// <summary>
43. /// 客户端主通信程序
44. /// </summary>
45. public TcpClient Client { get; set; }
46. /// <summary>
47. /// 承载客户端Socket的网络流
48. /// </summary>
49. public NetworkStream nStream { get; set; }
51. /// <summary>
52. /// 发生异常时不为null.
53. /// </summary>
54. public Exception ex { get; set; }
56. /// <summary>
57. /// 新客户端标识.如果推送器发现此标识为true,那么认为是客户端上线
58. /// 仅服务端有效
59. /// </summary>
60. public bool NewClientFlag { get; set; }
62. /// <summary>
63. /// 客户端退出标识.如果服务端发现此标识为true,那么认为客户端下线
64. /// 客户端接收此标识时,认为客户端异常.
65. /// </summary>
66. public bool ClientDispose { get; set; }
68. /// <summary>
69. /// 空参构造
70. /// </summary>
71. public Sockets() { }
73. /// <summary>
74. /// 构造函数
75. /// </summary>
76. /// <param name="ip">ip节点</param>
77. /// <param name="client">TCPClient客户端</param>
78. /// <param name="ns">NetworkStream </param>
79. public Sockets(IPEndPoint ip,TcpClient client,NetworkStream ns)
80. {
81. this.Ip = ip;
82. this.Client = client;
83. this.nStream = ns;
84. }
85. }
86. }
SocketsHandler类[csharp] view plain copy
1. /*****************************************************
2. * ProjectName: BenXHSocket
3. * Description:
4. * ClassName: SocketsHandler
5. * CLRVersion: 4.0.30319.18408
6. * Author: JiYF
7. * NameSpace: BenXHSocket
8. * MachineName: JIYONGFEI
9. * CreateTime: 2017/3/31 13:42:48
10. * UpdatedTime: 2017/3/31 13:42:48
11. *****************************************************/
12. using System;
13. using System.Collections.Generic;
14. using System.Linq;
15. using System.Text;
17. namespace BenXHSocket
18. {
19. /// <summary>
20. /// 推送器
21. /// </summary>
22. /// <param name="sockets"></param>
23. public delegate void PushSockets(Sockets sockets);
25. }
BXHTcpServer类 tcp服务端监听类

[csharp] view plain copy
1. /*****************************************************
2. * ProjectName: BenXHSocket
3. * Description:
4. * ClassName: TcpServer
5. * CLRVersion: 4.0.30319.18408
6. * Author: JiYF
7. * NameSpace: BenXHSocket
8. * MachineName: JIYONGFEI
9. * CreateTime: 2017/3/31 12:24:08
10. * UpdatedTime: 2017/3/31 12:24:08
11. *****************************************************/
12. using System;
13. using System.Collections.Generic;
14. using System.Linq;
15. using System.Text;
16. using System.Threading;
17. using System.Net;
18. using System.Net.Sockets;
20. namespace BenXHSocket
21. {
22. /// <summary>
23. /// TCPServer类服务端程序
24. /// </summary>
25. public class BXHTcpServer:SocketObject
26. {
27. private bool IsStop = false;
28. object obj = new object();
29. public static PushSockets pushSockets;
31. /// <summary>
32. /// 信号量
33. /// </summary>
34. private Semaphore semap = new Semaphore(5,5000);
36. /// <summary>
37. /// 客户端列表集合
38. /// </summary>
39. public List<Sockets> ClientList = new List<Sockets>();
41. /// <summary>
42. /// 服务端实例对象
43. /// </summary>
44. public TcpListener Listener;
46. /// <summary>
47. /// 当前的ip地址
48. /// </summary>
49. private IPAddress IpAddress;
51. /// <summary>
52. /// 初始化消息
53. /// </summary>
54. private string InitMsg = "JiYF笨小孩TCP服务端";
56. /// <summary>
57. /// 监听的端口
58. /// </summary>
59. private int Port;
61. /// <summary>
62. /// 当前ip和端口节点对象
63. /// </summary>
64. private IPEndPoint Ip;
67. /// <summary>
68. /// 初始化服务器对象
69. /// </summary>
70. /// <param name="ipAddress">IP地址</param>
71. /// <param name="port">端口号</param>
72. public override void InitSocket(IPAddress ipAddress, int port)
73. {
74. this.IpAddress = ipAddress;
75. this.Port = port;
76. this.Listener = new TcpListener(IpAddress,Port);
77. }
79. /// <summary>
80. /// 初始化服务器对象
81. /// </summary>
82. /// <param name="ipAddress"></param>
83. /// <param name="port"></param>
84. public override void InitSocket(string ipAddress, int port)
85. {
86. this.IpAddress = IPAddress.Parse(ipAddress);
87. this.Port = port;
88. this.Ip = new IPEndPoint(IpAddress,Port);
89. this.Listener = new TcpListener(IpAddress,Port);
90. }
92. /// <summary>
93. /// 服务端启动监听，处理链接
94. /// </summary>
95. public override void Start()
96. {
97. try
98. {
99. Listener.Start();
100. Thread Accth = new Thread(new ThreadStart(
101. delegate
102. {
103. while(true)
104. {
105. if(IsStop != false)
106. {
107. break;
108. }
109. this.GetAcceptTcpClient();
110. Thread.Sleep(1);
111. }
112. }
113. ));
114. Accth.Start();
115. }
116. catch(SocketException skex)
117. {
118. Sockets sks = new Sockets();
119. sks.ex = skex;
120. pushSockets.Invoke(sks);
121. }
122. }
124. /// <summary>
125. /// 获取处理新的链接请求
126. /// </summary>
127. private void GetAcceptTcpClient()
128. {
129. try
130. {
131. if(Listener.Pending())
132. {
133. semap.WaitOne();
134. //接收到挂起的客户端请求链接
135. TcpClient tcpClient = Listener.AcceptTcpClient();
137. //维护处理客户端队列
138. Socket socket = tcpClient.Client;
139. NetworkStream stream = new NetworkStream(socket,true);
140. Sockets sks = new Sockets(tcpClient.Client.RemoteEndPoint as IPEndPoint,tcpClient,stream);
141. sks.NewClientFlag = true;
143. //推送新的客户端连接信息
144. pushSockets.Invoke(sks);
146. //客户端异步接收数据
147. sks.nStream.BeginRead(sks.RecBuffer,0,sks.RecBuffer.Length,new AsyncCallback(EndReader),sks);
149. //加入客户端队列
150. this.AddClientList(sks);
152. //链接成功后主动向客户端发送一条消息
153. if(stream.CanWrite)
154. {
155. byte[] buffer = Encoding.UTF8.GetBytes(this.InitMsg);
156. stream.Write(buffer, 0, buffer.Length);
157. }
158. semap.Release();
159. }
160. }
161. catch
162. {
163. return;
164. }
165. }
167. /// <summary>
168. /// 异步接收发送的的信息
169. /// </summary>
170. /// <param name="ir"></param>
171. private void EndReader(IAsyncResult ir)
172. {
173. Sockets sks = ir.AsyncState as Sockets;
174. if (sks != null && Listener != null)
175. {
176. try
177. {
178. if (sks.NewClientFlag || sks.Offset != 0)
179. {
180. sks.NewClientFlag = false;
181. sks.Offset = sks.nStream.EndRead(ir);
182. //推送到UI
183. pushSockets.Invoke(sks);
184. sks.nStream.BeginRead(sks.RecBuffer,0,sks.RecBuffer.Length,new AsyncCallback(EndReader),sks);
185. }
186. }
187. catch(Exception skex)
188. {
189. lock (obj)
190. {
191. ClientList.Remove(sks);
192. Sockets sk = sks;
193. //标记客户端退出程序
194. sk.ClientDispose = true;
195. sk.ex = skex;
196. //推送至UI
197. pushSockets.Invoke(sks);
198. }
199. }
200. }
201. }
203. /// <summary>
204. /// 客户端加入队列
205. /// </summary>
206. /// <param name="sk"></param>
207. private void AddClientList(Sockets sk)
208. {
209. lock (obj)
210. {
211. Sockets sockets = ClientList.Find(o => { return o.Ip == sk.Ip; });
212. if (sockets == null)
213. {
214. ClientList.Add(sk);
215. }
216. else
217. {
218. ClientList.Remove(sockets);
219. ClientList.Add(sk);
220. }
221. }
222. }
224. /// <summary>
225. /// 服务端停止监听
226. /// </summary>
227. public override void Stop()
228. {
229. if (Listener != null)
230. {
231. Listener.Stop();
232. Listener = null;
233. IsStop = true;
234. pushSockets = null;
235. }
236. }
238. /// <summary>
239. /// 向所有在线客户端发送消息
240. /// </summary>
241. /// <param name="SendData">消息内容</param>
242. public void SendToAll(string SendData)
243. {
244. for (int i = 0; i < ClientList.Count; i++)
245. {
246. SendToClient(ClientList[i].Ip, SendData);
247. }
248. }
250. /// <summary>
251. /// 向单独的一个客户端发送消息
252. /// </summary>
253. /// <param name="ip"></param>
254. /// <param name="SendData"></param>
255. public void SendToClient(IPEndPoint ip,string SendData)
256. {
257. try
258. {
259. Sockets sks = ClientList.Find(o => { return o.Ip == ip; });
260. if(sks == null || !sks.Client.Connected)
261. {
262. Sockets ks = new Sockets();
263. //标识客户端下线
264. sks.ClientDispose = true;
265. sks.ex = new Exception("客户端没有连接");
266. pushSockets.Invoke(sks);
267. }
268. if(sks.Client.Connected)
269. {
270. //获取当前流进行写入.
271. NetworkStream nStream = sks.nStream;
272. if (nStream.CanWrite)
273. {
274. byte[] buffer = Encoding.UTF8.GetBytes(SendData);
275. nStream.Write(buffer, 0, buffer.Length);
276. }
277. else
278. {
279. //避免流被关闭,重新从对象中获取流
280. nStream = sks.Client.GetStream();
281. if (nStream.CanWrite)
282. {
283. byte[] buffer = Encoding.UTF8.GetBytes(SendData);
284. nStream.Write(buffer, 0, buffer.Length);
285. }
286. else
287. {
288. //如果还是无法写入,那么认为客户端中断连接.
289. ClientList.Remove(sks);
290. Sockets ks = new Sockets();
291. sks.ClientDispose = true;//如果出现异常,标识客户端下线
292. sks.ex = new Exception("客户端无连接");
293. pushSockets.Invoke(sks);//推送至UI
295. }
296. }
297. }
298. }
299. catch(Exception skex)
300. {
301. Sockets sks = new Sockets();
302. sks.ClientDispose = true;//如果出现异常,标识客户端退出
303. sks.ex = skex;
304. pushSockets.Invoke(sks);//推送至UI
305. }
306. }
307. }
308. }
BXHTcpClient 类 Tcp客户端类

[csharp] view plain copy
1. /*****************************************************
2. * ProjectName: BenXHSocket
3. * Description:
4. * ClassName: BxhTcpClient
5. * CLRVersion: 4.0.30319.42000
6. * Author: JiYF
7. * NameSpace: BenXHSocket
8. * MachineName: JIYF_PC
9. * CreateTime: 2017/3/31 20:31:48
10. * UpdatedTime: 2017/3/31 20:31:48
11. *****************************************************/
12. using System;
13. using System.Collections.Generic;
14. using System.Linq;
15. using System.Text;
16. using System.Net;
17. using System.Net.Sockets;
18. using System.Threading;
20. namespace BenXHSocket
21. {
22. public class BXHTcpClient : SocketObject
23. {
24. bool IsClose = false;
26. /// <summary>
27. /// 当前管理对象
28. /// </summary>
29. Sockets sk;
31. /// <summary>
32. /// 客户端
33. /// </summary>
34. public TcpClient client;
36. /// <summary>
37. /// 当前连接服务端地址
38. /// </summary>
39. IPAddress Ipaddress;
41. /// <summary>
42. /// 当前连接服务端端口号
43. /// </summary>
44. int Port;
46. /// <summary>
47. /// 服务端IP+端口
48. /// </summary>
49. IPEndPoint ip;
51. /// <summary>
52. /// 发送与接收使用的流
53. /// </summary>
54. NetworkStream nStream;
58. /// <summary>
59. /// 初始化Socket
60. /// </summary>
61. /// <param name="ipaddress"></param>
62. /// <param name="port"></param>
63. public override void InitSocket(string ipaddress, int port)
64. {
65. Ipaddress = IPAddress.Parse(ipaddress);
66. Port = port;
67. ip = new IPEndPoint(Ipaddress, Port);
68. client = new TcpClient();
69. }
71. public static PushSockets pushSockets;
72. public void SendData(string SendData)
73. {
74. try
75. {
77. if (client == null || !client.Connected)
78. {
79. Sockets sks = new Sockets();
80. sks.ex = new Exception("客户端无连接..");
81. sks.ClientDispose = true;
83. pushSockets.Invoke(sks);//推送至UI
84. }
85. if (client.Connected) //如果连接则发送
86. {
87. if (nStream == null)
88. {
89. nStream = client.GetStream();
90. }
91. byte[] buffer = Encoding.UTF8.GetBytes(SendData);
92. nStream.Write(buffer, 0, buffer.Length);
93. }
94. }
95. catch (Exception skex)
96. {
97. Sockets sks = new Sockets();
98. sks.ex = skex;
99. sks.ClientDispose = true;
100. pushSockets.Invoke(sks);//推送至UI
101. }
102. }
103. /// <summary>
104. /// 初始化Socket
105. /// </summary>
106. /// <param name="ipaddress"></param>
107. /// <param name="port"></param>
108. public override void InitSocket(IPAddress ipaddress, int port)
109. {
110. Ipaddress = ipaddress;
111. Port = port;
112. ip = new IPEndPoint(Ipaddress, Port);
113. client = new TcpClient();
114. }
115. private void Connect()
116. {
117. client.Connect(ip);
118. nStream = new NetworkStream(client.Client, true);
119. sk = new Sockets(ip, client, nStream);
120. sk.nStream.BeginRead(sk.RecBuffer, 0, sk.RecBuffer.Length, new AsyncCallback(EndReader), sk);
121. }
122. private void EndReader(IAsyncResult ir)
123. {
125. Sockets s = ir.AsyncState as Sockets;
126. try
127. {
128. if (s != null)
129. {
131. if (IsClose && client == null)
132. {
133. sk.nStream.Close();
134. sk.nStream.Dispose();
135. return;
136. }
137. s.Offset = s.nStream.EndRead(ir);
138. pushSockets.Invoke(s);//推送至UI
139. sk.nStream.BeginRead(sk.RecBuffer, 0, sk.RecBuffer.Length, new AsyncCallback(EndReader), sk);
140. }
141. }
142. catch (Exception skex)
143. {
144. Sockets sks = s;
145. sks.ex = skex;
146. sks.ClientDispose = true;
147. pushSockets.Invoke(sks);//推送至UI
149. }
151. }
152. /// <summary>
153. /// 重写Start方法,其实就是连接服务端
154. /// </summary>
155. public override void Start()
156. {
157. Connect();
158. }
159. public override void Stop()
160. {
161. Sockets sks = new Sockets();
162. if (client != null)
163. {
164. client.Client.Shutdown(SocketShutdown.Both);
165. Thread.Sleep(10);
166. client.Close();
167. IsClose = true;
168. client = null;
169. }
170. else
171. {
172. sks.ex = new Exception("客户端没有初始化.!");
173. }
174. pushSockets.Invoke(sks);//推送至UI
175. }
177. }
178. }
服务端和客户端窗体应用程序主要方法设计实现

服务端窗体应用程序主要方法代码：

[csharp] view plain copy
1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Data;
5. using System.Drawing;
6. using System.Linq;
7. using System.Text;
8. using System.Windows.Forms;
9. using System.Configuration;
10. using System.Net;
11. using BenXHSocket;
12. using System.Threading;
14. namespace BenXHSocketTcpServer
15. {
16. public partial class FrmTCPServer : Form
17. {
18. private static string serverIP;
19. private static int port;
20. object obj = new object();
21. private int sendInt = 0;
22. private static Dictionary<TreeNode, IPEndPoint> DicTreeIPEndPoint = new Dictionary<TreeNode, IPEndPoint>();
24. public FrmTCPServer()
25. {
26. InitializeComponent();
28. serverIP = ConfigurationManager.AppSettings["ServerIP"];
29. port = int.Parse(ConfigurationManager.AppSettings["ServerPort"]);
30. Control.CheckForIllegalCrossThreadCalls = false;
31. init();
32. }
34. private void init()
35. {
36. treeViewClientList.Nodes.Clear();
37. TreeNode tn = new TreeNode();
38. tn.Name = "ClientList";
39. tn.Text = "客户端列表";
40. tn.ImageIndex = 0;
41. tn.ContextMenuStrip = contextMenuStripClientAll;
42. treeViewClientList.Nodes.Add(tn);
43. DicTreeIPEndPoint.Clear();
45. //自已绘制
46. this.treeViewClientList.DrawMode = TreeViewDrawMode.OwnerDrawText;
47. this.treeViewClientList.DrawNode += new DrawTreeNodeEventHandler(treeViewClientList_DrawNode);
48. }
50. private BenXHSocket.BXHTcpServer tcpServer;
53. /// <summary>
54. /// 绘制颜色
55. /// </summary>
56. /// <param name="sender"></param>
57. /// <param name="e"></param>
58. private void treeViewClientList_DrawNode(object sender, DrawTreeNodeEventArgs e)
59. {
60. e.DrawDefault = true; //我这里用默认颜色即可，只需要在TreeView失去焦点时选中节点仍然突显
61. return;
62. //or 自定义颜色
63. if ((e.State & TreeNodeStates.Selected) != 0)
64. {
65. //演示为绿底白字
66. e.Graphics.FillRectangle(Brushes.DarkBlue, e.Node.Bounds);
68. Font nodeFont = e.Node.NodeFont;
69. if (nodeFont == null) nodeFont = ((TreeView)sender).Font;
70. e.Graphics.DrawString(e.Node.Text, nodeFont, Brushes.White, Rectangle.Inflate(e.Bounds, 2, 0));
71. }
72. else
73. {
74. e.DrawDefault = true;
75. }
77. if ((e.State & TreeNodeStates.Focused) != 0)
78. {
79. using (Pen focusPen = new Pen(Color.Black))
80. {
81. focusPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
82. Rectangle focusBounds = e.Node.Bounds;
83. focusBounds.Size = new Size(focusBounds.Width - 1,
84. focusBounds.Height - 1);
85. e.Graphics.DrawRectangle(focusPen, focusBounds);
86. }
87. }
89. }
91. /// <summary>
92. /// 开启服务
93. /// </summary>
94. /// <param name="sender"></param>
95. /// <param name="e"></param>
96. private void StartServerToolStripMenuItem_Click(object sender, EventArgs e)
97. {
98. try
99. {
100. if (serverIP != null && serverIP != "" && port != null && port >= 0)
101. {
102. tcpServer.InitSocket(IPAddress.Parse(serverIP), port);
103. tcpServer.Start();
104. listBoxServerInfo.Items.Add(string.Format("{0}服务端程序监听启动成功！监听：{1}:{2}",DateTime.Now.ToString(), serverIP, port.ToString()));
105. StartServerToolStripMenuItem.Enabled = false;
106. }
109. }
110. catch(Exception ex)
111. {
112. listBoxServerInfo.Items.Add(string.Format("服务器启动失败！原因：{0}",ex.Message));
113. StartServerToolStripMenuItem.Enabled = true;
114. }
115. }
117. /// <summary>
118. /// 停止服务监听
119. /// </summary>
120. /// <param name="sender"></param>
121. /// <param name="e"></param>
122. private void StopServerToolStripMenuItem_Click(object sender, EventArgs e)
123. {
124. tcpServer.Stop();
125. listBoxServerInfo.Items.Add("服务器程序停止成功！");
126. StartServerToolStripMenuItem.Enabled = true;
128. }
130. private void FrmTCPServer_Load(object sender, EventArgs e)
131. {
132. if(tcpServer ==null)
133. listBoxServerInfo.Items.Add(string.Format("服务端监听程序尚未开启！{0}:{1}",serverIP,port));
134. treeViewClientList.ExpandAll();
135. BXHTcpServer.pushSockets = new PushSockets(Rev);
136. tcpServer = new BXHTcpServer();
137. }
139. /// <summary>
140. /// 处理接收到客户端的请求和数据
141. /// </summary>
142. /// <param name="sks"></param>
143. private void Rev(BenXHSocket.Sockets sks)
144. {
145. this.Invoke(new ThreadStart(
146. delegate
147. {
148. if (treeViewClientList.Nodes[0] != null)
149. {
151. }
153. if (sks.ex != null)
154. {
155. if (sks.ClientDispose)
156. {
157. listBoxServerInfo.Items.Add(string.Format("{0}客户端：{1}下线！",DateTime.Now.ToString(), sks.Ip));
158. if (treeViewClientList.Nodes[0].Nodes.ContainsKey(sks.Ip.ToString()))
159. {
160. if (DicTreeIPEndPoint.Count != 0)
161. {
162. removTreeIPEndPoint(sks.Ip);
163. treeViewClientList.Nodes[0].Nodes.RemoveByKey(sks.Ip.ToString());
165. toolStripStatusLabelClientNum.Text = (int.Parse(toolStripStatusLabelClientNum.Text) - 1).ToString();//treeViewClientList.Nodes[0].Nodes.Count.ToString();
167. }
169. }
170. }
171. listBoxServerInfo.Items.Add(sks.ex.Message);
172. }
173. else
174. {
175. if (sks.NewClientFlag)
176. {
177. listBoxServerInfo.Items.Add(string.Format("{0}新的客户端：{0}链接成功",DateTime.Now.ToString(), sks.Ip));
179. TreeNode tn = new TreeNode();
180. tn.Name = sks.Ip.ToString();
181. tn.Text = sks.Ip.ToString();
182. tn.ContextMenuStrip = contextMenuStripClientSingle;
183. tn.Tag = "客户端";
184. tn.ImageIndex = 1;
186. treeViewClientList.Nodes[0].Nodes.Add(tn);
188. //treeview节点和IPEndPoint绑定
189. DicTreeIPEndPoint.Add(tn,sks.Ip);
191. if (treeViewClientList.Nodes[0].Nodes.Count > 0)
192. {
193. treeViewClientList.ExpandAll();
194. }
195. toolStripStatusLabelClientNum.Text = (int.Parse(toolStripStatusLabelClientNum.Text)+1).ToString();
196. }
197. else if (sks.Offset == 0)
198. {
199. listBoxServerInfo.Items.Add(string.Format("{0}客户端:{1}下线.!",DateTime.Now.ToString(), sks.Ip));
200. if (treeViewClientList.Nodes[0].Nodes.ContainsKey(sks.Ip.ToString()))
201. {
202. if (DicTreeIPEndPoint.Count != 0)
203. {
204. removTreeIPEndPoint(sks.Ip);
205. treeViewClientList.Nodes[0].Nodes.RemoveByKey(sks.Ip.ToString());
207. toolStripStatusLabelClientNum.Text = (int.Parse(toolStripStatusLabelClientNum.Text) - 1).ToString();
209. }
210. }
211. }
212. else
213. {
214. byte[] buffer = new byte[sks.Offset];
215. Array.Copy(sks.RecBuffer, buffer, sks.Offset);
216. string str = Encoding.UTF8.GetString(buffer);
217. listBox1.Items.Add(string.Format("{0}客户端{1}发来消息：{2}",DateTime.Now.ToString(), sks.Ip, str));
218. }
219. }
220. }
221. )
222. );
223. }
225. /// <summary>
226. /// 关闭程序钱停止服务器实例
227. /// </summary>
228. /// <param name="sender"></param>
229. /// <param name="e"></param>
230. private void FrmTCPServer_FormClosing(object sender, FormClosingEventArgs e)
231. {
232. tcpServer.Stop();
233. }
235. private void treeViewClientList_AfterSelect(object sender, TreeViewEventArgs e)
236. {
237. //
238. }
240. private void treeViewClientList_MouseClick(object sender, MouseEventArgs e)
241. {
242. if (e.Button == MouseButtons.Right)
243. {
244. treeViewClientList.Focus();
245. treeViewClientList.SelectedNode = treeViewClientList.GetNodeAt(e.X,e.Y);
246. }
248. }
251. private void toolStripMenuSendSingle_Click(object sender, EventArgs e)
252. {
253. if (treeViewClientList.SelectedNode != null)
254. {
255. tcpServer.SendToClient(DicTreeIPEndPoint[treeViewClientList.SelectedNode], string.Format("服务端单个消息...{0}", sendInt.ToString()));
256. sendInt++;
257. }
258. }
260. private void toolStripMenuSendAll_Click(object sender, EventArgs e)
261. {
262. tcpServer.SendToAll("服务端全部发送消息..." + sendInt);
263. sendInt++;
264. }
266. private void removTreeIPEndPoint(IPEndPoint ipendPoint)
267. {
269. if (DicTreeIPEndPoint.Count <= 0) return;
270. //foreach遍历Dictionary时候不能对字典进行Remove
271. TreeNode[] keys = new TreeNode[DicTreeIPEndPoint.Count];
272. DicTreeIPEndPoint.Keys.CopyTo(keys,0);
273. lock (obj)
274. {
275. foreach (TreeNode item in keys)
276. {
277. if (DicTreeIPEndPoint[item] == ipendPoint)
278. {
279. DicTreeIPEndPoint.Remove(item);
280. }
281. }
282. }
283. }
285. }
286. }
客户端窗体应用程序主要代码

[csharp] view plain copy
1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Data;
5. using System.Drawing;
6. using System.Linq;
7. using System.Text;
8. using System.Windows.Forms;
9. using System.Net;
10. using System.Net.Sockets;
11. using BenXHSocket;
12. using System.Threading;
14. namespace BenXHSocketClient
15. {
16. public partial class FrmTCPClient : Form
17. {
18. BXHTcpClient tcpClient;
20. string ip = string.Empty;
21. string port = string.Empty;
22. private int sendInt = 0;
23. public FrmTCPClient()
24. {
25. InitializeComponent();
26. Control.CheckForIllegalCrossThreadCalls = false;
27. }
29. private void btnConnServer_Click(object sender, EventArgs e)
30. {
31. try
32. {
33. this.ip = txtServerIP.Text.Trim();
34. this.port = txtServerPort.Text.Trim();
36. tcpClient.InitSocket(ip, int.Parse(port));
37. tcpClient.Start();
38. listBoxStates.Items.Add("连接成功!");
39. btnConnServer.Enabled = false;
41. }
42. catch (Exception ex)
43. {
45. listBoxStates.Items.Add(string.Format("连接失败!原因：{0}", ex.Message));
46. btnConnServer.Enabled = true;
47. }
48. }
50. private void FrmTCPClient_Load(object sender, EventArgs e)
51. {
52. //客户端如何处理异常等信息参照服务端
54. BXHTcpClient.pushSockets = new PushSockets(Rec);
56. tcpClient = new BXHTcpClient();
57. this.ip = txtServerIP.Text.Trim();
58. this.port = txtServerPort.Text.Trim();
60. }
62. /// <summary>
63. /// 处理推送过来的消息
64. /// </summary>
65. /// <param name="rec"></param>
66. private void Rec(BenXHSocket.Sockets sks)
67. {
68. this.Invoke(new ThreadStart(delegate
69. {
70. if (listBoxText.Items.Count > 1000)
71. {
72. listBoxText.Items.Clear();
73. }
74. if (sks.ex != null)
75. {
76. if (sks.ClientDispose == true)
77. {
78. //由于未知原因引发异常.导致客户端下线. 比如网络故障.或服务器断开连接.
79. listBoxStates.Items.Add(string.Format("客户端下线.!"));
80. }
81. listBoxStates.Items.Add(string.Format("异常消息：{0}", sks.ex));
82. }
83. else if (sks.Offset == 0)
84. {
85. //客户端主动下线
86. listBoxStates.Items.Add(string.Format("客户端下线.!"));
87. }
88. else
89. {
90. byte[] buffer = new byte[sks.Offset];
91. Array.Copy(sks.RecBuffer, buffer, sks.Offset);
92. string str = Encoding.UTF8.GetString(buffer);
93. listBoxText.Items.Add(string.Format("服务端{0}发来消息：{1}", sks.Ip, str));
94. }
95. }));
96. }
98. private void btnDisConn_Click(object sender, EventArgs e)
99. {
100. tcpClient.Stop();
101. btnConnServer.Enabled = true;
102. }
104. private void btnSendData_Click(object sender, EventArgs e)
105. {
106. tcpClient.SendData("客户端消息!" + sendInt);
107. sendInt++;
109. }
111. private void btnConnTest_Click(object sender, EventArgs e)
112. {
113. ThreadPool.QueueUserWorkItem(o =>
114. {
115. for (int i = 0; i < 100; i++)
116. {
117. BenXHSocket.BXHTcpClient clientx= new BenXHSocket.BXHTcpClient();//初始化类库
118. clientx.InitSocket(ip, int.Parse(port));
119. clientx.Start();
120. }
121. MessageBox.Show("完成.!");
122. });
123. }
126. }
127. }
运行程序下载：

BenXHSocket程序下载

 源代码工程文件下载

内容：

BenXHSocket.dll 主要程序动态库

BenXHSocketClient.exe 客户端应用程序

BenXHSocketTcpServer.exe 服务端应用程序

BenXHSocketTcpServer.exe.config 服务端应用程序配置文件

其中：BenXHSocketTcpServer.exe.config为配置文件，可以设置监听的ip地址和端口号，默认ip地址：127.0.0.1 默认的端口号：4455
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原文地址：https://www.cnblogs.com/grj001/p/12223459.html

C#网络编程TCP通信实例程序简单设计

通信程序截图：

压力测试服务端截图：

俩个客户端链接服务端测试截图：

运行动态图

C#程序设计代码

BenXHSocket.dll主要代码设计

服务端和客户端窗体应用程序主要方法设计实现

运行程序下载：

BenXHSocket程序下载

源代码工程文件下载