1 using System;
2 using System.Collections.Generic;
3 using System.IO;
4 using System.Linq;
5 using System.Net;
6 using System.Text;
7 using System.Threading.Tasks;
8
9 namespace ManagementProject
10 {
11 public class FTPHelper
12 {
13 string ftpRemotePath;
14
15 #region 变量属性
16 /// <summary>
17 /// Ftp服务器ip
18 /// </summary>
19 public static string FtpServerIP = "";
20 /// <summary>
21 /// Ftp 指定用户名
22 /// </summary>
23 public static string FtpUserID = "";
24 /// <summary>
25 /// Ftp 指定用户密码
26 /// </summary>
27 public static string FtpPassword = "";
28
29 public static string ftpURI = "ftp://" + FtpServerIP + "/";
30
31 #endregion
32
33 #region 从FTP服务器下载文件，指定本地路径和本地文件名
34 /// <summary>
35 /// 从FTP服务器下载文件，指定本地路径和本地文件名
36 /// </summary>
37 /// <param name="remoteFileName">远程文件名</param>
38 /// <param name="localFileName">保存本地的文件名（包含路径）</param>
39 /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param>
40 /// <param name="updateProgress">报告进度的处理(第一个参数：总大小，第二个参数：当前进度)</param>
41 /// <returns>是否下载成功</returns>
42 public static bool FtpDownload(string remoteFileName, string localFileName, bool ifCredential, Action<int, int> updateProgress = null)
43 {
44 FtpWebRequest reqFTP, ftpsize;
45 Stream ftpStream = null;
46 FtpWebResponse response = null;
47 FileStream outputStream = null;
48 try
49 {
50
51 outputStream = new FileStream(localFileName, FileMode.Create);
52 if (FtpServerIP == null || FtpServerIP.Trim().Length == 0)
53 {
54 throw new Exception("ftp下载目标服务器地址未设置！");
55 }
56 Uri uri = new Uri("ftp://" + FtpServerIP + "/" + remoteFileName);
57 ftpsize = (FtpWebRequest)FtpWebRequest.Create(uri);
58 ftpsize.UseBinary = true;
59
60 reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
61 reqFTP.UseBinary = true;
62 reqFTP.KeepAlive = false;
63 if (ifCredential)//使用用户身份认证
64 {
65 ftpsize.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
66 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
67 }
68 ftpsize.Method = WebRequestMethods.Ftp.GetFileSize;
69 FtpWebResponse re = (FtpWebResponse)ftpsize.GetResponse();
70 long totalBytes = re.ContentLength;
71 re.Close();
72
73 reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
74 response = (FtpWebResponse)reqFTP.GetResponse();
75 ftpStream = response.GetResponseStream();
76
77 //更新进度
78 if (updateProgress != null)
79 {
80 updateProgress((int)totalBytes, 0);//更新进度条
81 }
82 long totalDownloadedByte = 0;
83 int bufferSize = 2048;
84 int readCount;
85 byte[] buffer = new byte[bufferSize];
86 readCount = ftpStream.Read(buffer, 0, bufferSize);
87 while (readCount > 0)
88 {
89 totalDownloadedByte = readCount + totalDownloadedByte;
90 outputStream.Write(buffer, 0, readCount);
91 //更新进度
92 if (updateProgress != null)
93 {
94 updateProgress((int)totalBytes, (int)totalDownloadedByte);//更新进度条
95 }
96 readCount = ftpStream.Read(buffer, 0, bufferSize);
97 }
98 ftpStream.Close();
99 outputStream.Close();
100 response.Close();
101 return true;
102 }
103 catch (Exception ex)
104 {
105 return false;
106 throw;
107 }
108 finally
109 {
110 if (ftpStream != null)
111 {
112 ftpStream.Close();
113 }
114 if (outputStream != null)
115 {
116 outputStream.Close();
117 }
118 if (response != null)
119 {
120 response.Close();
121 }
122 }
123 }
124 /// <summary>
125 /// 从FTP服务器下载文件，指定本地路径和本地文件名（支持断点下载）
126 /// </summary>
127 /// <param name="remoteFileName">远程文件名</param>
128 /// <param name="localFileName">保存本地的文件名（包含路径）</param>
129 /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param>
130 /// <param name="size">已下载文件流大小</param>
131 /// <param name="updateProgress">报告进度的处理(第一个参数：总大小，第二个参数：当前进度)</param>
132 /// <returns>是否下载成功</returns>
133 public static bool FtpBrokenDownload(string remoteFileName, string localFileName, bool ifCredential, long size, Action<int, int> updateProgress = null)
134 {
135 FtpWebRequest reqFTP, ftpsize;
136 Stream ftpStream = null;
137 FtpWebResponse response = null;
138 FileStream outputStream = null;
139 try
140 {
141
142 outputStream = new FileStream(localFileName, FileMode.Append);
143 if (FtpServerIP == null || FtpServerIP.Trim().Length == 0)
144 {
145 throw new Exception("ftp下载目标服务器地址未设置！");
146 }
147 Uri uri = new Uri("ftp://" + FtpServerIP + "/" + remoteFileName);
148 ftpsize = (FtpWebRequest)FtpWebRequest.Create(uri);
149 ftpsize.UseBinary = true;
150 ftpsize.ContentOffset = size;
151
152 reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
153 reqFTP.UseBinary = true;
154 reqFTP.KeepAlive = false;
155 reqFTP.ContentOffset = size;
156 if (ifCredential)//使用用户身份认证
157 {
158 ftpsize.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
159 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
160 }
161 ftpsize.Method = WebRequestMethods.Ftp.GetFileSize;
162 FtpWebResponse re = (FtpWebResponse)ftpsize.GetResponse();
163 long totalBytes = re.ContentLength;
164 re.Close();
165
166 reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
167 response = (FtpWebResponse)reqFTP.GetResponse();
168 ftpStream = response.GetResponseStream();
169
170 //更新进度
171 if (updateProgress != null)
172 {
173 updateProgress((int)totalBytes, 0);//更新进度条
174 }
175 long totalDownloadedByte = 0;
176 int bufferSize = 2048;
177 int readCount;
178 byte[] buffer = new byte[bufferSize];
179 readCount = ftpStream.Read(buffer, 0, bufferSize);
180 while (readCount > 0)
181 {
182 totalDownloadedByte = readCount + totalDownloadedByte;
183 outputStream.Write(buffer, 0, readCount);
184 //更新进度
185 if (updateProgress != null)
186 {
187 updateProgress((int)totalBytes, (int)totalDownloadedByte);//更新进度条
188 }
189 readCount = ftpStream.Read(buffer, 0, bufferSize);
190 }
191 ftpStream.Close();
192 outputStream.Close();
193 response.Close();
194 return true;
195 }
196 catch (Exception ex)
197 {
198 return false;
199 throw;
200 }
201 finally
202 {
203 if (ftpStream != null)
204 {
205 ftpStream.Close();
206 }
207 if (outputStream != null)
208 {
209 outputStream.Close();
210 }
211 if (response != null)
212 {
213 response.Close();
214 }
215 }
216 }
217
218 /// <summary>
219 /// 从FTP服务器下载文件，指定本地路径和本地文件名
220 /// </summary>
221 /// <param name="remoteFileName">远程文件名</param>
222 /// <param name="localFileName">保存本地的文件名（包含路径）</param>
223 /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param>
224 /// <param name="updateProgress">报告进度的处理(第一个参数：总大小，第二个参数：当前进度)</param>
225 /// <param name="brokenOpen">是否断点下载：true 会在localFileName 找是否存在已经下载的文件，并计算文件流大小</param>
226 /// <returns>是否下载成功</returns>
227 public static bool FtpDownload(string remoteFileName, string localFileName, bool ifCredential, bool brokenOpen, Action<int, int> updateProgress = null)
228 {
229 if (brokenOpen)
230 {
231 try
232 {
233 long size = 0;
234 if (File.Exists(localFileName))
235 {
236 using (FileStream outputStream = new FileStream(localFileName, FileMode.Open))
237 {
238 size = outputStream.Length;
239 }
240 }
241 return FtpBrokenDownload(remoteFileName, localFileName, ifCredential, size, updateProgress);
242 }
243 catch
244 {
245 throw;
246 }
247 }
248 else
249 {
250 return FtpDownload(remoteFileName, localFileName, ifCredential, updateProgress);
251 }
252 }
253 #endregion
254
255 #region 上传文件到FTP服务器
256 /// <summary>
257 /// 上传文件到FTP服务器
258 /// </summary>
259 /// <param name="localFullPath">本地带有完整路径的文件名</param>
260 /// <param name="updateProgress">报告进度的处理(第一个参数：总大小，第二个参数：当前进度)</param>
261 /// <returns>是否下载成功</returns>
262 public static bool FtpUploadFile(string localFullPathName, Action<int, int> updateProgress = null)
263 {
264 FtpWebRequest reqFTP;
265 Stream stream = null;
266 FtpWebResponse response = null;
267 FileStream fs = null;
268 try
269 {
270 FileInfo finfo = new FileInfo(localFullPathName);
271 if (FtpServerIP == null || FtpServerIP.Trim().Length == 0)
272 {
273 throw new Exception("ftp上传目标服务器地址未设置！");
274 }
275 Uri uri = new Uri("ftp://" + FtpServerIP + "/" + finfo.Name);
276 reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
277 reqFTP.KeepAlive = false;
278 reqFTP.UseBinary = true;
279 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);//用户，密码
280 reqFTP.Method = WebRequestMethods.Ftp.UploadFile;//向服务器发出下载请求命令
281 reqFTP.ContentLength = finfo.Length;//为request指定上传文件的大小
282 response = reqFTP.GetResponse() as FtpWebResponse;
283 reqFTP.ContentLength = finfo.Length;
284 int buffLength = 1024;
285 byte[] buff = new byte[buffLength];
286 int contentLen;
287 fs = finfo.OpenRead();
288 stream = reqFTP.GetRequestStream();
289 contentLen = fs.Read(buff, 0, buffLength);
290 int allbye = (int)finfo.Length;
291 //更新进度
292 if (updateProgress != null)
293 {
294 updateProgress((int)allbye, 0);//更新进度条
295 }
296 int startbye = 0;
297 while (contentLen != 0)
298 {
299 startbye = contentLen + startbye;
300 stream.Write(buff, 0, contentLen);
301 //更新进度
302 if (updateProgress != null)
303 {
304 updateProgress((int)allbye, (int)startbye);//更新进度条
305 }
306 contentLen = fs.Read(buff, 0, buffLength);
307 }
308 stream.Close();
309 fs.Close();
310 response.Close();
311 return true;
312
313 }
314 catch (Exception ex)
315 {
316 return false;
317 throw;
318 }
319 finally
320 {
321 if (fs != null)
322 {
323 fs.Close();
324 }
325 if (stream != null)
326 {
327 stream.Close();
328 }
329 if (response != null)
330 {
331 response.Close();
332 }
333 }
334 }
335
336 /// <summary>
337 /// 上传文件到FTP服务器(断点续传)
338 /// </summary>
339 /// <param name="localFullPath">本地文件全路径名称：C:\Users\JianKunKing\Desktop\IronPython脚本测试工具</param>
340 /// <param name="remoteFilepath">远程文件所在文件夹路径</param>
341 /// <param name="updateProgress">报告进度的处理(第一个参数：总大小，第二个参数：当前进度)</param>
342 /// <returns></returns>
343 public static bool FtpUploadBroken(string localFullPath, string remoteFilepath, Action<int, int> updateProgress = null)
344 {
345 if (remoteFilepath == null)
346 {
347 remoteFilepath = "";
348 }
349 string newFileName = string.Empty;
350 bool success = true;
351 FileInfo fileInf = new FileInfo(localFullPath);
352 long allbye = (long)fileInf.Length;
353 if (fileInf.Name.IndexOf("#") == -1)
354 {
355 newFileName = RemoveSpaces(fileInf.Name);
356 }
357 else
358 {
359 newFileName = fileInf.Name.Replace("#", "＃");
360 newFileName = RemoveSpaces(newFileName);
361 }
362 long startfilesize = GetFileSize(newFileName, remoteFilepath);
363 if (startfilesize >= allbye)
364 {
365 return false;
366 }
367 long startbye = startfilesize;
368 //更新进度
369 if (updateProgress != null)
370 {
371 updateProgress((int)allbye, (int)startfilesize);//更新进度条
372 }
373
374 string uri;
375 if (remoteFilepath.Length == 0)
376 {
377 uri = "ftp://" + FtpServerIP + "/" + newFileName;
378 }
379 else
380 {
381 uri = "ftp://" + FtpServerIP + "/" + remoteFilepath + "/" + newFileName;
382 }
383 FtpWebRequest reqFTP;
384 // 根据uri创建FtpWebRequest对象
385 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
386 // ftp用户名和密码
387 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
388 // 默认为true，连接不会被关闭
389 // 在一个命令之后被执行
390 reqFTP.KeepAlive = false;
391 // 指定执行什么命令
392 reqFTP.Method = WebRequestMethods.Ftp.AppendFile;
393 // 指定数据传输类型
394 reqFTP.UseBinary = true;
395 // 上传文件时通知服务器文件的大小
396 reqFTP.ContentLength = fileInf.Length;
397 int buffLength = 2048;// 缓冲大小设置为2kb
398 byte[] buff = new byte[buffLength];
399 // 打开一个文件流 (System.IO.FileStream) 去读上传的文件
400 FileStream fs = fileInf.OpenRead();
401 Stream strm = null;
402 try
403 {
404 // 把上传的文件写入流
405 strm = reqFTP.GetRequestStream();
406 // 每次读文件流的2kb
407 fs.Seek(startfilesize, 0);
408 int contentLen = fs.Read(buff, 0, buffLength);
409 // 流内容没有结束
410 while (contentLen != 0)
411 {
412 // 把内容从file stream 写入 upload stream
413 strm.Write(buff, 0, contentLen);
414 contentLen = fs.Read(buff, 0, buffLength);
415 startbye += contentLen;
416 //更新进度
417 if (updateProgress != null)
418 {
419 updateProgress((int)allbye, (int)startbye);//更新进度条
420 }
421 }
422 // 关闭两个流
423 strm.Close();
424 fs.Close();
425 }
426 catch
427 {
428 success = false;
429 throw;
430 }
431 finally
432 {
433 if (fs != null)
434 {
435 fs.Close();
436 }
437 if (strm != null)
438 {
439 strm.Close();
440 }
441 }
442 return success;
443 }
444
445 /// <summary>
446 /// 去除空格
447 /// </summary>
448 /// <param name="str"></param>
449 /// <returns></returns>
450 private static string RemoveSpaces(string str)
451 {
452 string a = "";
453 CharEnumerator CEnumerator = str.GetEnumerator();
454 while (CEnumerator.MoveNext())
455 {
456 byte[] array = new byte[1];
457 array = System.Text.Encoding.ASCII.GetBytes(CEnumerator.Current.ToString());
458 int asciicode = (short)(array[0]);
459 if (asciicode != 32)
460 {
461 a += CEnumerator.Current.ToString();
462 }
463 }
464 string sdate = System.DateTime.Now.Year.ToString() + System.DateTime.Now.Month.ToString() + System.DateTime.Now.Day.ToString() + System.DateTime.Now.Hour.ToString()
465 + System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString() + System.DateTime.Now.Millisecond.ToString();
466 return a.Split('.')[a.Split('.').Length - 2] + "." + a.Split('.')[a.Split('.').Length - 1];
467 }
468 /// <summary>
469 /// 获取已上传文件大小
470 /// </summary>
471 /// <param name="filename">文件名称</param>
472 /// <param name="path">服务器文件路径</param>
473 /// <returns></returns>
474 public static long GetFileSize(string filename, string remoteFilepath)
475 {
476 long filesize = 0;
477 try
478 {
479 FtpWebRequest reqFTP;
480 FileInfo fi = new FileInfo(filename);
481 string uri;
482 if (remoteFilepath.Length == 0)
483 {
484 uri = "ftp://" + FtpServerIP + "/" + fi.Name;
485 }
486 else
487 {
488 uri = "ftp://" + FtpServerIP + "/" + remoteFilepath + "/" + fi.Name;
489 }
490 reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
491 reqFTP.KeepAlive = false;
492 reqFTP.UseBinary = true;
493 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);//用户，密码
494 reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
495 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
496 filesize = response.ContentLength;
497 return filesize;
498 }
499 catch
500 {
501 return 0;
502 }
503 }
504
505 //public void Connect(String path, string ftpUserID, string ftpPassword)//连接ftp
506 //{
507 // // 根据uri创建FtpWebRequest对象
508 // reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
509 // // 指定数据传输类型
510 // reqFTP.UseBinary = true;
511 // // ftp用户名和密码
512 // reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
513 //}
514
515 #endregion
516
517 #region 获取当前目录下明细
518 /// <summary>
519 /// 获取当前目录下明细(包含文件和文件夹)
520 /// </summary>
521 /// <returns></returns>
522 public static string[] GetFilesDetailList()
523 {
524 string[] downloadFiles;
525 try
526 {
527 StringBuilder result = new StringBuilder();
528 FtpWebRequest ftp;
529 ftp = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI));
530 ftp.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
531 ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
532 WebResponse response = ftp.GetResponse();
533 StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
534 string line = reader.ReadLine();
535
536 while (line != null)
537 {
538 result.Append(line);
539 result.Append("\n");
540 line = reader.ReadLine();
541 }
542 result.Remove(result.ToString().LastIndexOf("\n"), 1);
543 reader.Close();
544 response.Close();
545 return result.ToString().Split('\n');
546 }
547 catch (Exception ex)
548 {
549 downloadFiles = null;
550 throw ex;
551 }
552 }
553
554 /// <summary>
555 /// 获取当前目录下文件列表(仅文件)
556 /// </summary>
557 /// <returns></returns>
558 public static string[] GetFileList(string mask)
559 {
560 string[] downloadFiles;
561 StringBuilder result = new StringBuilder();
562 FtpWebRequest reqFTP;
563 try
564 {
565 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI));
566 reqFTP.UseBinary = true;
567 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
568 reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
569 WebResponse response = reqFTP.GetResponse();
570 StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
571
572 string line = reader.ReadLine();
573 while (line != null)
574 {
575 if (mask.Trim() != string.Empty && mask.Trim() != "*.*")
576 {
577
578 string mask_ = mask.Substring(0, mask.IndexOf("*"));
579 if (line.Substring(0, mask_.Length) == mask_)
580 {
581 result.Append(line);
582 result.Append("\n");
583 }
584 }
585 else
586 {
587 result.Append(line);
588 result.Append("\n");
589 }
590 line = reader.ReadLine();
591 }
592 result.Remove(result.ToString().LastIndexOf('\n'), 1);
593 reader.Close();
594 response.Close();
595 return result.ToString().Split('\n');
596 }
597 catch (Exception ex)
598 {
599 downloadFiles = null;
600 throw ex;
601 }
602 }
603
604 /// <summary>
605 /// 获取当前目录下所有的文件夹列表(仅文件夹)
606 /// </summary>
607 /// <returns></returns>
608 public static string[] GetDirectoryList()
609 {
610 string[] drectory = GetFilesDetailList();
611 string m = string.Empty;
612 foreach (string str in drectory)
613 {
614 int dirPos = str.IndexOf("<DIR>");
615 if (dirPos > 0)
616 {
617 /*判断 Windows 风格*/
618 m += str.Substring(dirPos + 5).Trim() + "\n";
619 }
620 else if (str.Trim().Substring(0, 1).ToUpper() == "D")
621 {
622 /*判断 Unix 风格*/
623 string dir = str.Substring(54).Trim();
624 if (dir != "." && dir != "..")
625 {
626 m += dir + "\n";
627 }
628 }
629 }
630
631 char[] n = new char[] { '\n' };
632 return m.Split(n);
633 }
634 #endregion
635
636 #region 删除文件及文件夹
637 /// <summary>
638 /// 删除文件
639 /// </summary>
640 /// <param name="fileName"></param>
641 public static bool Delete(string fileName)
642 {
643 try
644 {
645 string uri = ftpURI + fileName;
646 FtpWebRequest reqFTP;
647 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
648
649 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
650 reqFTP.KeepAlive = false;
651 reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
652
653 string result = String.Empty;
654 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
655 long size = response.ContentLength;
656 Stream datastream = response.GetResponseStream();
657 StreamReader sr = new StreamReader(datastream);
658 result = sr.ReadToEnd();
659 sr.Close();
660 datastream.Close();
661 response.Close();
662 return true;
663 }
664 catch (Exception ex)
665 {
666 return false;
667 throw ex;
668 }
669 }
670
671 /// <summary>
672 /// 删除文件夹
673 /// </summary>
674 /// <param name="folderName"></param>
675 public static void RemoveDirectory(string folderName)
676 {
677 try
678 {
679 string uri = ftpURI + folderName;
680 FtpWebRequest reqFTP;
681 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
682
683 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
684 reqFTP.KeepAlive = false;
685 reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
686
687 string result = String.Empty;
688 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
689 long size = response.ContentLength;
690 Stream datastream = response.GetResponseStream();
691 StreamReader sr = new StreamReader(datastream);
692 result = sr.ReadToEnd();
693 sr.Close();
694 datastream.Close();
695 response.Close();
696 }
697 catch (Exception ex)
698 {
699 throw ex;
700 }
701 }
702 #endregion
703
704 #region 其他操作
705 /// <summary>
706 /// 获取指定文件大小
707 /// </summary>
708 /// <param name="filename"></param>
709 /// <returns></returns>
710 public static long GetFileSize(string filename)
711 {
712 FtpWebRequest reqFTP;
713 long fileSize = 0;
714 try
715 {
716 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + filename));
717 reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
718 reqFTP.UseBinary = true;
719 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
720 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
721 Stream ftpStream = response.GetResponseStream();
722 fileSize = response.ContentLength;
723
724 ftpStream.Close();
725 response.Close();
726 }
727 catch (Exception ex)
728 {
729 throw ex;
730 }
731 return fileSize;
732 }
733
734 /// <summary>
735 /// 判断当前目录下指定的子目录是否存在
736 /// </summary>
737 /// <param name="RemoteDirectoryName">指定的目录名</param>
738 public bool DirectoryExist(string RemoteDirectoryName)
739 {
740 try
741 {
742 string[] dirList = GetDirectoryList();
743
744 foreach (string str in dirList)
745 {
746 if (str.Trim() == RemoteDirectoryName.Trim())
747 {
748 return true;
749 }
750 }
751 return false;
752 }
753 catch
754 {
755 return false;
756 }
757
758 }
759
760 /// <summary>
761 /// 判断当前目录下指定的文件是否存在
762 /// </summary>
763 /// <param name="RemoteFileName">远程文件名</param>
764 public bool FileExist(string RemoteFileName)
765 {
766 string[] fileList = GetFileList("*.*");
767 foreach (string str in fileList)
768 {
769 if (str.Trim() == RemoteFileName.Trim())
770 {
771 return true;
772 }
773 }
774 return false;
775 }
776
777 /// <summary>
778 /// 创建文件夹
779 /// </summary>
780 /// <param name="dirName"></param>
781 public void MakeDir(string dirName)
782 {
783 FtpWebRequest reqFTP;
784 try
785 {
786 // dirName = name of the directory to create.
787 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + dirName));
788 reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
789 reqFTP.UseBinary = true;
790 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
791 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
792 Stream ftpStream = response.GetResponseStream();
793
794 ftpStream.Close();
795 response.Close();
796 }
797 catch (Exception ex)
798 {
799 throw ex;
800 }
801 }
802
803 /// <summary>
804 /// 改名
805 /// </summary>
806 /// <param name="currentFilename"></param>
807 /// <param name="newFilename"></param>
808 public void ReName(string currentFilename, string newFilename)
809 {
810 FtpWebRequest reqFTP;
811 try
812 {
813 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + currentFilename));
814 reqFTP.Method = WebRequestMethods.Ftp.Rename;
815 reqFTP.RenameTo = newFilename;
816 reqFTP.UseBinary = true;
817 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);
818 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
819 Stream ftpStream = response.GetResponseStream();
820
821 ftpStream.Close();
822 response.Close();
823 }
824 catch (Exception ex)
825 {
826 throw ex;
827 }
828 }
829
830 /// <summary>
831 /// 移动文件
832 /// </summary>
833 /// <param name="currentFilename"></param>
834 /// <param name="newFilename"></param>
835 public void MovieFile(string currentFilename, string newDirectory)
836 {
837 ReName(currentFilename, newDirectory);
838 }
839
840 /// <summary>
841 /// 切换当前目录
842 /// </summary>
843 /// <param name="DirectoryName"></param>
844 /// <param name="IsRoot">true 绝对路径 false 相对路径</param>
845 public void GotoDirectory(string DirectoryName, bool IsRoot)
846 {
847
848 if (IsRoot)
849 {
850 ftpRemotePath = DirectoryName;
851 }
852 else
853 {
854 ftpRemotePath += DirectoryName + "/";
855 }
856 ftpURI = "ftp://" + FtpServerIP + "/" + ftpRemotePath + "/";
857 }
858 #endregion
859
860
861 }
862 }
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