实例介绍
【实例简介】c# udp文件传输，发送、接收文件
【实例截图】
【核心代码】c# udp文件传输
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 | using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using CSharpWin;using System.Diagnostics;namespace ReceiveFileDemo{ public partial class Form1 : Form { #region Fields private UdpReceiveFile udpReceiveFile; #endregion #region Constructor public Form1() { InitializeComponent(); //linkLabel1.Click = delegate(object sender, EventArgs e) //{ // Process.Start("www.csharpwin.com"); //}; } #endregion #region udpReceiveFile Events private void FileReceiveCancel( object sender, FileReceiveEventArgs e) { string name = string.Empty; if (e.Tag != null) { foreach (TraFransfersFileControl control1 in panelSend.Controls) { RequestSendFileEventArgs rse = control1.Tag as RequestSendFileEventArgs; if (rse != null && rse.TraFransfersFileStart.MD5 == e.Tag.ToString()) { name = rse.TraFransfersFileStart.FileName; BeginInvoke(new MethodInvoker(delegate() { panelSend.Controls.Remove(control1); control1.Dispose(); })); break; } } } else { TraFransfersFileControl control = e.ReceiveFileManager.Tag as TraFransfersFileControl; name = e.ReceiveFileManager.Name; if (control != null) { BeginInvoke(new MethodInvoker(delegate() { panelSend.Controls.Remove(control); control.Dispose(); })); } else { foreach (TraFransfersFileControl control1 in panelSend.Controls) { ControlTag tag = control1.Tag as ControlTag; if (tag != null && tag.MD5 == e.ReceiveFileManager.MD5) { BeginInvoke(new MethodInvoker(delegate() { panelSend.Controls.Remove(control1); control1.Dispose(); })); break; } } } } AppendLog(string.Format( "对方取消发送文件文件 {0} 。", name), true); } private void FileReceiveComplete( object sender, FileReceiveEventArgs e) { TraFransfersFileControl control = e.ReceiveFileManager.Tag as TraFransfersFileControl; if (control != null) { BeginInvoke(new MethodInvoker(delegate() { panelSend.Controls.Remove(control); control.Dispose(); })); } else { foreach (TraFransfersFileControl control1 in panelSend.Controls) { ControlTag tag = control1.Tag as ControlTag; if (tag != null && tag.MD5 == e.ReceiveFileManager.MD5) { BeginInvoke(new MethodInvoker(delegate() { panelSend.Controls.Remove(control1); control1.Dispose(); })); break; } } } AppendLog(string.Format( "文件 {0} 接收完成，MD5 校验: {1}。", e.ReceiveFileManager.Name, e.ReceiveFileManager.Success), true); } private void FileReceiveBuffer( object sender, FileReceiveBufferEventArgs e) { TraFransfersFileControl control = e.ReceiveFileManager.Tag as TraFransfersFileControl; if (control != null) { BeginInvoke(new MethodInvoker(delegate() { control.TraFransfersSize = e.Size; })); } else { foreach (TraFransfersFileControl control1 in panelSend.Controls) { ControlTag tag = control1.Tag as ControlTag; if (tag != null && tag.MD5 == e.ReceiveFileManager.MD5) { e.ReceiveFileManager.Tag = control1; BeginInvoke(new MethodInvoker(delegate() { control1.TraFransfersSize = e.Size; })); break; } } } } private void RequestSendFile( object sender, RequestSendFileEventArgs e) { TraFransfersFileStart traFransfersFileStart = e.TraFransfersFileStart; TraFransfersFileControl control = new TraFransfersFileControl(); control.IsSend = false; control.FileName = traFransfersFileStart.FileName; control.FileSize = traFransfersFileStart.Length; control.Image = traFransfersFileStart.Image; control.Comment = "接收文件"; control.Tag = e; control.Dock = DockStyle.Top; control.LabelClick = new LabelClickEventHandler(control_LabelClick); Invoke(new MethodInvoker(delegate() { panelSend.Controls.Add(control); control.BringToFront(); })); AppendLog(string.Format( "请求发送文件 {0}。", traFransfersFileStart.FileName), true); } #endregion #region Control Events private void button1_Click(object sender, EventArgs e) { udpReceiveFile = new UdpReceiveFile( int.Parse(tbLocalPort.Text)); udpReceiveFile.RequestSendFile = new RequestSendFileEventHandler(RequestSendFile); udpReceiveFile.FileReceiveBuffer = new FileReceiveBufferEventHandler(FileReceiveBuffer); udpReceiveFile.FileReceiveComplete = new FileReceiveEventHandler(FileReceiveComplete); udpReceiveFile.FileReceiveCancel = new FileReceiveEventHandler(FileReceiveCancel); udpReceiveFile.Start(); AppendLog(string.Format( "开始侦听，端口：{0}", udpReceiveFile.Port), false); } private void control_LabelClick( object sender, LabelClickEventArgs e) { TraFransfersFileControl control = sender as TraFransfersFileControl; RequestSendFileEventArgs rse = null; bool receive = false; switch (e.Flag) { case 0: rse = control.Tag as RequestSendFileEventArgs; rse.Cancel = true; panelSend.Controls.Remove(control); control.Dispose(); AppendLog(string.Format( "拒绝接收文件 {0}。", rse.TraFransfersFileStart.FileName), false); receive = true; break; case 1: rse = control.Tag as RequestSendFileEventArgs; FolderBrowserDialog fbd = new FolderBrowserDialog(); if (fbd.ShowDialog() == DialogResult.OK) { rse.Path = fbd.SelectedPath; control.StartTime = DateTime.Now; AppendLog(string.Format( "同意接收文件 {0}。", rse.TraFransfersFileStart.FileName), false); receive = true; } break; case 2: rse = control.Tag as RequestSendFileEventArgs; control.StartTime = DateTime.Now; rse.Path = Application.StartupPath; AppendLog(string.Format( "同意接收文件 {0}。", rse.TraFransfersFileStart.FileName), false); receive = true; break; case 3: ControlTag tag = control.Tag as ControlTag; udpReceiveFile.CancelReceive(tag.MD5, tag.RemoteIP); panelSend.Controls.Remove(control); control.Dispose(); AppendLog(string.Format( "取消接收文件 {0}。", tag.FileName), false); break; } if (receive) { ControlTag tag = new ControlTag( rse.TraFransfersFileStart.MD5, rse.TraFransfersFileStart.FileName, rse.RemoteIP); control.Tag = tag; control.IsSend = true; control.SetTag(3); udpReceiveFile.AcceptReceive(rse); } } #endregion #region Help Methods private void AppendLog(string text, bool async) { if (async) { BeginInvoke(new MethodInvoker(delegate() { int index = listBox1.Items.Add(text); listBox1.SelectedIndex = index; })); } else { int index = listBox1.Items.Add(text); listBox1.SelectedIndex = index; } } #endregion #region Override Methods protected override void OnClosed(EventArgs e) { base.OnClosed(e); if (udpReceiveFile != null) { udpReceiveFile.Dispose(); } } #endregion }} |
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