实例介绍
【实例简介】
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 | using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using System.Net;using System.Net.Sockets;using System.Threading;namespace SyncChatServer//================================服务器{ public partial class Form1 : Form { //保存用户列表 private List<User> userList = new List<User>(); //监听socket private Socket myListener = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp); private bool isNormalExit = false; //端口号 private static int myprot = 8889; //用户人数 private static int usercount = 0; public Form1() { InitializeComponent(); button2.Enabled=false; IPEndPoint ep; IPAddress ip = IPAddress.Parse("127.0.0.1"); try { myListener.Bind(new IPEndPoint(ip, myprot)); richTextBox1.AppendText("主机IP：" ip.ToString() "\n"); } catch { richTextBox1.AppendText("绑定失败"); } //=================================================== } //-------------------------------------------向窗口输出信息 private delegate void buttu_richBoxDelegate(string message); private void buttu_richBox(string message) { richTextBox1.AppendText(message "\n"); } //======================================================= //-------------------------------------------------------监听按键 private void button1_Click(object sender, EventArgs e) { isNormalExit = false; buttu_richBoxDelegate d=buttu_richBox; try { myListener.Listen(10); richTextBox1.Invoke(d,"成功监听."); }catch{ richTextBox1.Invoke(d,"监听失败。"); } Thread mhThread=new Thread(ListenClientConnect); mhThread.IsBackground=true; mhThread.Start(); button1.Enabled=false; button2.Enabled=true; } //======================================================= //-------------------------------------------------------监听事件 private void ListenClientConnect() { Socket newClient =null; while(isNormalExit==false) { try { newClient=myListener.Accept(); if (isNormalExit == true) { newClient.Close(); usercount = 0; UserCount(usercount); break; } } catch { break ; } User user = new User(newClient); Thread threadReceive = new Thread(ReceiveData); threadReceive.IsBackground=true; threadReceive.Start(user); UserCount( usercount); } } //======================================================= //-------------------------------------------------------接收信息函数 private void ReceiveData(object userState) { User user =(User)userState; Socket client=user.client; byte[] result=new byte[2048]; string receiveString = null; int receiveNumber; while(isNormalExit==false) { try { receiveNumber = client.Receive(result); receiveString=Encoding.UTF8.GetString(result,0,receiveNumber); //sendMessageTorichBox(receiveString); } catch { if(isNormalExit==false) { sendMessageTorichBox("用户" user.username "已经退出！"); RemoveUser(user); } break; } string[] splitString =receiveString.Split(','); switch(splitString[0].ToLower()) { case "login": user.username=splitString[1]; user.ip = splitString[2]; user.port = int.Parse(splitString[3]); userList.Add(user); AddItemToListBox(user.username); sendToAllClient(user,receiveString); FirstLogin(user); break; case "logout": DeletItemInListBox(user.username); sendToAllClient(user,receiveString); RemoveUser(user); UserCount(--usercount); break; case "talk": multMessage(user,receiveString); break; default: sendMessageTorichBox("不知道什么意思！"); break; } } } //============================================================= private void multMessage(User user,String receiveString) { string[] splitString = receiveString.Split(','); for(int i=1;i<splitString.Length;i=i 3) { sendMessageTorichBox(string.Format("[{0}] 对 [{1}] 说：", user.username, splitString[i]) splitString[i 1]); foreach (User target in userList) { if (target.username == splitString[i] && user.username != splitString[i]) { SendToClient(target, "talk," user.username "," splitString[i 1]); break; } } } } //============================================================= private void SendToClient(User user,string message) { button_richBoxDelegate d=button_richBox; Socket socket=user.client; try { socket.Send(Encoding.UTF8.GetBytes(message)); } catch { richTextBox1.Invoke(d,"发送信息失效。"); } } private void sendToAllClient(User user,string message) { string command =message.Split(',')[0].ToLower(); if(command=="login") { for(int i=0;i<userList.Count;i ) { SendToClient(userList[i],message ","); } } else if(command=="logout") { for(int i=0;i<userList.Count;i ) { if(userList[i].username!=user.username) { SendToClient(userList[i],message); } } } } private void FirstLogin(User user) { for (int i = 0; i < userList.Count; i ) { if(userList[i].username!=user.username) { SendToClient(user,"login," userList[i].username "," userList[i].ip "," userList[i].port ","); } } } private delegate void UserCountDelegate(object obj); private void UserCount(object obj) { UserCountDelegate d = userCountFunction; label3.Invoke(d,obj); } private void userCountFunction(object obj) { label3.Text = (int)obj " 人"; } private void RemoveUser(User user) { userList.Remove(user); user.Close(); } private delegate void button_richBoxDelegate(string str); private void sendMessageTorichBox(string str) { button_richBoxDelegate d=button_richBox; richTextBox1.Invoke(d,str); } private void button_richBox(string str) { richTextBox1.AppendText(str "\n"); } private delegate void DeletItem_ListBoxDelegate(string str); private void DeletItemInListBox(string str) { DeletItem_ListBoxDelegate d = DeletItem_ListBox; listBox1.Invoke(d,str); } private void DeletItem_ListBox(string str) { listBox1.Items.Remove(str); listBox1.SelectedIndex = listBox1.Items.Count - 1; listBox1.ClearSelected(); } private delegate void AddItem_ListBoxDelegate(string str); private void AddItemToListBox(string str) { AddItem_ListBoxDelegate d=AddItem_ListBox; listBox1.Invoke(d,str); } private void AddItem_ListBox(string str) { listBox1.Items.Add(str); listBox1.SelectedIndex=listBox1.Items.Count-1; listBox1.ClearSelected(); } private void button2_Click(object sender, EventArgs e) { sendMessageTorichBox("正在停止服务器，并依次使用户退出！"); isNormalExit=true; for(int i=userList.Count-1;i>=0;i--) { userList[i].client.Close(); RemoveUser(userList[i]); } //myListener.Shutdown(SocketShutdown.Both); //myListener.Close(); button1.Enabled=true; button2.Enabled=false; CloseConnect(); //mhThread.Join(); } private delegate void AddrichTextBox1MassageDelegate(string str); private void sendrichTextBox1Massage(string str) { richTextBox1.AppendText(str "\n"); } private void button3_Click(object sender, EventArgs e) { AddrichTextBox1MassageDelegate d = sendrichTextBox1Massage; if (listBox1.SelectedIndex != -1) { //SendMessage("talk," listBox1.SelectedItem "," textBox2.Text); //---------------------------------------------------- if (listBox1.Items.Count > 0) { for (int i = 0; i < listBox1.SelectedItems.Count; i ) { for (int j = 0; j < userList.Count; j ) { if (userList[j].username == listBox1.SelectedItems[i].ToString()) { SendToClient(userList[j], "talk,Server," textBox1.Text); richTextBox1.Invoke(d, "[Server] 对 [" userList[j].username "]说:" textBox1.Text); } } //SendMessage("talk," listBox1.SelectedItems[i].ToString() "," textBox2.Text); //richTextBox1.Invoke(d, "我对[" listBox1.SelectedItems[i].ToString() "]说：" textBox2.Text); } } //---------------------------------------------------- /*for(int i=0;i<userList.Count;i ) { if(userList[i].username == listBox1.SelectedItem.ToString()) { SendToClient(userList[i], "talk,Server," textBox1.Text); richTextBox1.Invoke(d, "[Server] 对 [" userList[i].username "]说:" textBox1.Text); textBox1.Clear(); } }*/ textBox1.Clear(); } else { sendrichTextBox1Massage("请先选择一个对话者."); } } private delegate void ClearListBoxItemDelegate(); private void CloseConnect() { ClearListBoxItemDelegate d1 = ClearListBoxItemFunction; listBox1.Invoke(d1); usercount = 0; UserCount(usercount); } private void ClearListBoxItemFunction() { listBox1.Items.Clear(); } private void textBox1_TextChanged(object sender, EventArgs e) { } private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { } private void richTextBox1_TextChanged(object sender, EventArgs e) { } }} |
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