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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 | using System;using System.Collections.Generic;using System.Text;using System.Net;using System.IO;namespace Utility{ public class FtpUpDown { string ftpServerIP; string ftpUserID; string ftpPassword; FtpWebRequest reqFTP; private void Connect(String path)//连接ftp { // 根据uri创建FtpWebRequest对象 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path)); // 指定数据传输类型 reqFTP.UseBinary = true; // ftp用户名和密码 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); } public FtpUpDown(string ftpServerIP, string ftpUserID, string ftpPassword) { this.ftpServerIP = ftpServerIP; this.ftpUserID = ftpUserID; this.ftpPassword = ftpPassword; } //都调用这个 private string[] GetFileList(string path, string WRMethods)//上面的代码示例了如何从ftp服务器上获得文件列表 { string[] downloadFiles; StringBuilder result = new StringBuilder(); try { Connect(path); reqFTP.Method = WRMethods; WebResponse response = reqFTP.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名 string line = reader.ReadLine(); while (line != null) { result.Append(line); result.Append("\n"); line = reader.ReadLine(); } // to remove the trailing '\n' result.Remove(result.ToString().LastIndexOf('\n'), 1); reader.Close(); response.Close(); return result.ToString().Split('\n'); } catch (Exception ex) { Log.WriteError("Get FileList Error:" + ex.Message); downloadFiles = null; return downloadFiles; } } public string[] GetFileList(string path)//上面的代码示例了如何从ftp服务器上获得文件列表 { return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectory); } public string[] GetFileList()//上面的代码示例了如何从ftp服务器上获得文件列表 { return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectory); } public void Upload(string filename) //上面的代码实现了从ftp服务器上载文件的功能 { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 // 默认为true，连接不会被关闭 // 在一个命令之后被执行 reqFTP.KeepAlive = false; // 指定执行什么命令 reqFTP.Method = WebRequestMethods.Ftp.UploadFile; // 上传文件时通知服务器文件的大小 reqFTP.ContentLength = fileInf.Length; // 缓冲大小设置为kb int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; // 打开一个文件流(System.IO.FileStream) 去读上传的文件 FileStream fs = fileInf.OpenRead(); try { // 把上传的文件写入流 Stream strm = reqFTP.GetRequestStream(); // 每次读文件流的kb contentLen = fs.Read(buff, 0, buffLength); // 流内容没有结束 while (contentLen != 0) { // 把内容从file stream 写入upload stream strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } // 关闭两个流 strm.Close(); fs.Close(); } catch (Exception ex) { Log.WriteError( "Upload Error:" + ex.Message); } } public bool Download(string filePath, string fileName, out string errorinfo)////上面的代码实现了从ftp服务器下载文件的功能 { try { String onlyFileName = Path.GetFileName(fileName); string newFileName = filePath + "\\" + onlyFileName; if (File.Exists(newFileName)) { errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName); return false; } string url = "ftp://" + ftpServerIP + "/" + fileName; Connect(url);//连接 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 2048; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); FileStream outputStream = new FileStream(newFileName, FileMode.Create); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); } ftpStream.Close(); outputStream.Close(); response.Close(); errorinfo = ""; return true; } catch (Exception ex) { errorinfo = string.Format("因{0},无法下载", ex.Message); return false; } } //删除文件 public void DeleteFileName(string fileName) { try { FileInfo fileInf = new FileInfo(fileName); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 // 默认为true，连接不会被关闭 // 在一个命令之后被执行 reqFTP.KeepAlive = false; // 指定执行什么命令 reqFTP.Method = WebRequestMethods.Ftp.DeleteFile; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { Log.WriteError("删除错误:" + ex.Message); } } //创建目录 public void MakeDir(string dirName) { try { string uri = "ftp://" + ftpServerIP + "/" + dirName; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { Log.WriteError("创建目录错误:" + ex.Message); } } //删除目录 public void delDir(string dirName) { try { string uri = "ftp://" + ftpServerIP + "/" + dirName; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { Log.WriteError("删除目录错误:" + ex.Message); } } //获得文件大小 public long GetFileSize(string filename) { long fileSize = 0; try { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); fileSize = response.ContentLength; response.Close(); } catch (Exception ex) { Log.WriteError("获得文件大小错误:" + ex.Message); } return fileSize; } //文件改名 public void Rename(string currentFilename, string newFilename) { try { FileInfo fileInf = new FileInfo(currentFilename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.Rename; reqFTP.RenameTo = newFilename; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { Log.WriteError("文件改名错误:" + ex.Message); } } //读取文件 public Stream ReadFile(string fileName) { try { string url = "ftp://" + ftpServerIP + "/" + fileName; Connect(url);//连接 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); return ftpStream; } catch (Exception ex) { Log.WriteError("读取文件错误:" + ex.Message); return null; } } //获得文件明晰 public string[] GetFilesDetailList() { return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectoryDetails); } //获得文件明晰 public string[] GetFilesDetailList(string path) { return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails); } // 文件存在检查 public bool fileCheckExist(string fileName) { bool success = false; FtpWebResponse response = null; StreamReader reader = null; try { string url = "ftp://" + ftpServerIP + "/" + fileName; Connect(url);//连接 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); response = (FtpWebResponse)reqFTP.GetResponse(); reader = new StreamReader(response.GetResponseStream()); string line = reader.ReadLine(); if (line != null) { success = true; } } catch (Exception) { success = false; } finally { if (reader != null) { reader.Close(); } if (response != null) { response.Close(); } } return success; } }} |