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C# Winform Soket 网络编程多个客户端连接服务器并返回客户端操作请求

2017.8.2

服务器：

  1 #region 参数与集合
  2         /// <summary>
  3         /// 客户端IP
  4         /// </summary>
  5         string clientIP;
  6         /// <summary>
  7         /// IP地址(IPAddress)
  8         /// </summary>
  9         string thisIp;
 10         /// <summary>
 11         /// 端口(Port)
 12         /// </summary>
 13         int port;
 14         /// <summary>
 15         /// Thread：监听客户端连接请求
 16         /// </summary>
 17         Thread watchClientThread = null;
 18         /// <summary>
 19         /// Socket：监听客户端连接请求
 20         /// </summary>
 21         Socket watchClientSocker = null;
 22         /// <summary>
 23         /// 套接字集合(Socket Gether)
 24         /// </summary>
 25         Dictionary<string, Socket> dictSocket = new Dictionary<string, Socket>();
 26         /// <summary>
 27         /// 线程集合(Thread Gether)
 28         /// </summary>
 29         Dictionary<string, Thread> dictThread = new Dictionary<string, Thread>(); 
 30         #endregion
 31 
 32         #region 获取本地IP地址
 33         /// <summary>
 34         /// 获取本地IP地址
 35         /// </summary>
 36         private void GetIPAddress()
 37         {
 38             NetworkInterface[] nis = NetworkInterface.GetAllNetworkInterfaces();
 39             if (nis.Length > 0)
 40             {
 41                 for (int i = 0; i < nis.Length; i++)
 42                 {
 43                     foreach (var item in nis[i].GetIPProperties().UnicastAddresses)
 44                     {
 45                         string s = item.Address.ToString();
 46                         string[] ss = s.Split('.');
 47                         if (ss.Length == 4)
 48                         {
 49                             if (ss[0].ToString() != "127" && ss[0].ToString() == "192")
 50                             {
 51                                 thisIp = s;
 52                                 break;
 53                             }
 54                         }
 55                     }
 56                 }
 57             }
 58         }
 59         #endregion
 60 
 61         #region 启动服务器
 62         /// <summary>
 63         /// 启动服务器
 64         /// </summary>
 65         public void SocketStart()
 66         {
 67             GetIPAddress();
 68             port = 8888;
 69             watchClientSocker = new Socket(AddressFamily.InterNetwork,
 70                 SocketType.Stream,
 71                 ProtocolType.Tcp);
 72             IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse(thisIp), port);
 73             try
 74             {
 75                 watchClientSocker.Bind(endPoint);
 76             }
 77             catch (SocketException se)
 78             {
 79                 rtbMonitoring.Text += "异常：" + se.Message + "
";
 80                 return;
 81             }
 82             catch (Exception ex)
 83             {
 84                  rtbMonitoring.Text += "异常：" + ex.Message + "
";
 85             }
 86             watchClientSocker.Listen(50);
 87             watchClientThread = new Thread(WatchConnection);
 88             watchClientThread.IsBackground = true;
 89             watchClientThread.Start();
 90         }
 91         #endregion
 92 
 93         #region 开始监听客户端连接请求
 94         /// <summary>
 95         /// 开始监听客户端连接请求
 96         /// </summary>
 97         void WatchConnection()
 98         {
 99             while (true)
100             {
101                 Socket socketConn = watchClientSocker.Accept();
102                 clientIP = socketConn.RemoteEndPoint.ToString();
103                 dictSocket.Add(clientIP, socketConn);
104                 Thread thr = new Thread(ReccptionData);
105                 thr.IsBackground = true;
106                 thr.Start(socketConn);
107                 dictThread.Add(clientIP, thr);
108                  rtbMonitoring.Text += clientIP + " 连接成功" + "
"; 
109             }
110         }
111         #endregion
112 
113         #region 客户端信息处理
114         /// <summary>
115         /// 客户端信息处理
116         /// </summary>
117         /// <param name="socketConn"></param>
118         void ReccptionData(object socketConn)
119         {
120             Socket socketClient = socketConn as Socket;
121             while (true)
122             {
123                 byte[] arrRec = new byte[1024 * 1024 * 6];
124                 int length = -1;
125                 try
126                 {
127                     length = socketClient.Receive(arrRec);
128                 }
129                 catch (SocketException se)
130                 {
131                      rtbMonitoring.Text += "异常：" + se.Message+"
";
132                     dictSocket.Remove(socketClient.RemoteEndPoint.ToString());
133                     dictThread.Remove(socketClient.RemoteEndPoint.ToString());
134                     break;
135                 }
136                 if (arrRec[0] == 0)
137                 {
138                     clientIP = socketClient.RemoteEndPoint.ToString();
139                     string strMsg = System.Text.Encoding.UTF8.GetString(arrRec, 1, length - 1);// 将接受到的字节数据转化成字符串；
140                     ReturnData(strMsg);
141                      rtbMonitoring.Text +=clientIP+"："+ strMsg + "
";
142                 }
143                 if (arrRec[0] == 1)
144                 {
145                     if (!Directory.Exists("FileInfo"))
146                     {
147                         Directory.CreateDirectory("FileInfo");
148                     }
149                     if (!File.Exists(arrRec + ".txt"))
150                     {
151                         File.Create(arrRec + ".txt");
152                     }
153                     string fileSavePath = arrRec + " .txt";
154                     using (FileStream fs = new FileStream(fileSavePath, FileMode.Create))
155                     {
156                         fs.Write(arrRec, 1, length - 1);
157                          rtbMonitoring.Text += "文件保存成功：" + fileSavePath + "
";
158 
159                     }
160                 }
161             }
162 
163         }
164         #endregion
165 
166         #region 返回请求数据
167         /// <summary>
168         /// 返回请求数据
169         /// </summary>
170         /// <param name="data"></param>
171         void ReturnData(string data)
172         {
173             string connectSql = "server=.;database=Thread_SocketDB;uid=sa;pwd=sa;";
174             string strMsg;
175             UserInfo u = new UserInfo();
176             GetSql getsql = new GetSql();
177             List<UserInfo> us = new List<UserInfo>();
178             string[] datas = data.Split('/');
179             string operationType = "";
180             string type = "";
181             string userName = "";
182             string pwd = "";
183             if (datas.Length > 4)
184             {
185                 operationType = datas[1];
186                 type = datas[2];
187                 userName = datas[3];
188                 pwd = datas[4];
189             }
190             switch (operationType)
191             {
192                 case "用户":
193                     switch (type)
194                     {
195                         case "登录":
196                             SqlConnection con = new SqlConnection(connectSql);
197                             con.Open();
198                             SqlCommand com = new SqlCommand(getsql.GetSelectAll(), con);
199                             SqlDataReader dr = com.ExecuteReader();
200                             while (dr.Read())
201                             {
202                                 u = new UserInfo();
203                                 u.UserName = dr["UserName"].ToString();
204                                 u.Pwd = dr["Pwd"].ToString();
205                                 us.Add(u);
206                             }
207                             dr.Close();
208                             con.Close();
209                             strMsg = "正在验证登录信息...";
210                             SendContent(strMsg);
211                             List<UserInfo> loginInfo = us.FindAll((p) =>
212                                 p.UserName == userName);
213                             if (loginInfo.Count <= 0)
214                             {
215                                 strMsg = "对不起，你的账号不存在！";
216                                 SendContent(strMsg);
217 
218                             }
219                             else
220                             {
221                                 foreach (UserInfo userInfo in loginInfo)
222                                 {
223                                     u = userInfo;
224                                 }
225 
226                                 if (pwd != u.Pwd)
227                                 {
228 
229                                     strMsg = "对不起，你的密码不正确！";
230                                     SendContent(strMsg);
231 
232                                 }
233                                 else
234                                 {
235                                     strMsg = "登录成功！";
236                                     SendContent(strMsg);
237                                 }
238                             }
239                             break;
240                         case "编号查询":
241 
242                             break;
243                     }
244                     break;
245                 case "管理员":
246 
247                     break;
248             }
249         }
250         #endregion
251 
252         #region 封装发送信息
253         /// <summary>
254         /// 封装发送信息
255         /// </summary>
256         /// <param name="strMsg"></param>
257         private void SendContent(string s)
258         {
259             byte[] arrMsg = System.Text.Encoding.UTF8.GetBytes(s);
260             byte[] arrSendMsg = new byte[arrMsg.Length + 1];
261             arrSendMsg[0] = 0; // 用来表示发送的是消息数据 
262             Buffer.BlockCopy(arrMsg, 0, arrSendMsg, 1, arrMsg.Length);
263             dictSocket[clientIP].Send(arrSendMsg);
264         }
265         #endregion

View Code

客户端：

  1  /// <summary>
  2         /// 客户端套接字对象
  3         /// </summary>
  4         Socket sockClient = null;
  5         /// <summary>
  6         /// 客户端线程
  7         /// </summary>
  8         Thread threadCilent = null;
  9         #region 开始连接字符串
 10         /// <summary>
 11         /// 开始连接字符串
 12         /// </summary>
 13         public void ServerConnect()
 14         {
 15             try
 16             {
 17                 IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("192.168.4.186"), 8888);
 18                 sockClient = new Socket(AddressFamily.InterNetwork,
 19                     SocketType.Stream,
 20                     ProtocolType.Tcp);
 21                 try
 22                 {
 23                     lbReception.Text = "正在与服务器进行连接...
";
 24                     sockClient.Connect(endPoint);
 25                 }
 26                 catch (SocketException se)
 27                 {
 28                     lbReception.Text = "异常：" + se.Message + "
";
 29                     return;
 30                 }
 31                 lbReception.Text = "连接成功！";
 32                 threadCilent = new Thread(Res);
 33                 threadCilent.IsBackground = true;
 34                 threadCilent.Start();
 35 
 36             }
 37             catch (Exception)
 38             {
 39                 lbReception.Text = "IP无效！";
 40                 throw;
 41             }
 42 
 43 
 44         }
 45 
 46         #region 接收数据处理
 47         /// <summary>
 48         /// 接收数据处理
 49         /// </summary>
 50         private void Res()
 51         {
 52 
 53             while (true)
 54             {
 55                 // 定义一个2M的缓存区； 
 56                 byte[] arrMsgRec = new byte[1024 * 1024 * 6];
 57                 // 将接受到的数据存入到输入 arrMsgRec中； 
 58                 int length = -1;
 59                 try
 60                 {
 61                     length = sockClient.Receive(arrMsgRec); // 接收数据，并返回数据的长度； 
 62                 }
 63                 catch (SocketException se)
 64                 {
 65                     lbReception.Text = "异常；" + se.Message;
 66                     return;
 67                 }
 68                 catch (Exception e)
 69                 {
 70                     lbReception.Text = "异常：" + e.Message;
 71                     return;
 72                 }
 73                 if (arrMsgRec[0] == 0) // 表示接收到的是消息数据； 
 74                 {
 75                     string strMsg = System.Text.Encoding.UTF8.GetString(arrMsgRec, 1, length - 1);// 将接受到的字节数据转化成字符串； 
 76                     lbReception.Text = strMsg;
 77                 }
 78             }
 79         } 
 80         #endregion
 81         #endregion
 82 
 83         #region 发送数据
 84         /// <summary>
 85         /// 发送数据
 86         /// </summary>
 87         /// <param name="s"></param>
 88         public void send(string s)
 89         {
 90             try
 91             {
 92                 byte[] arrMsg = System.Text.Encoding.UTF8.GetBytes(s);
 93                 byte[] arrSendMsg = new byte[arrMsg.Length + 1];
 94                 arrSendMsg[0] = 0; // 用来表示发送的是消息数据 
 95                 Buffer.BlockCopy(arrMsg, 0, arrSendMsg, 1, arrMsg.Length);
 96                 sockClient.Send(arrSendMsg); // 发送消息； 
 97             }
 98             catch (Exception)
 99             {
100 
101                 throw;
102             }
103 
104         } 
105         #endregion

View Code

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原文地址：https://www.cnblogs.com/Anjjie/p/7274535.html

C# Winform Soket 网络编程 多个客户端连接服务器并返回客户端操作请求

C# Winform Soket 网络编程多个客户端连接服务器并返回客户端操作请求