[转]C# FTP操作类
转自 http://www.cnblogs.com/Liyuting/p/7084718.html
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text; using System.Threading.Tasks; namespace ManagementProject { public class FTPHelper { string ftpRemotePath; #region 变量属性 /// <summary> /// Ftp服务器ip /// </summary> public static string FtpServerIP = ""; /// <summary> /// Ftp 指定用户名 /// </summary> public static string FtpUserID = ""; /// <summary> /// Ftp 指定用户密码 /// </summary> public static string FtpPassword = ""; public static string ftpURI = "ftp://" + FtpServerIP + "/"; #endregion #region 从FTP服务器下载文件，指定本地路径和本地文件名 /// <summary> /// 从FTP服务器下载文件，指定本地路径和本地文件名 /// </summary> /// <param name="remoteFileName">远程文件名</param> /// <param name="localFileName">保存本地的文件名（包含路径）</param> /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param> /// <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> /// <returns>是否下载成功</returns> public static bool FtpDownload(string remoteFileName, string localFileName, bool ifCredential, Action<int, int> updateProgress = null) { FtpWebRequest reqFTP, ftpsize; Stream ftpStream = null; FtpWebResponse response = null; FileStream outputStream = null; try { outputStream = new FileStream(localFileName, FileMode.Create); if (FtpServerIP == null || FtpServerIP.Trim().Length == 0) { throw new Exception("ftp下载目标服务器地址未设置！"); } Uri uri = new Uri("ftp://" + FtpServerIP + "/" + remoteFileName); ftpsize = (FtpWebRequest)FtpWebRequest.Create(uri); ftpsize.UseBinary = true; reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri); reqFTP.UseBinary = true; reqFTP.KeepAlive = false; if (ifCredential)//使用用户身份认证 { ftpsize.Credentials = new NetworkCredential(FtpUserID, FtpPassword); reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); } ftpsize.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse re = (FtpWebResponse)ftpsize.GetResponse(); long totalBytes = re.ContentLength; re.Close(); reqFTP.Method = WebRequestMethods.Ftp.DownloadFile; response = (FtpWebResponse)reqFTP.GetResponse(); ftpStream = response.GetResponseStream(); //更新进度 if (updateProgress != null) { updateProgress((int)totalBytes, 0);//更新进度条 } long totalDownloadedByte = 0; int bufferSize = 2048; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); while (readCount > 0) { totalDownloadedByte = readCount + totalDownloadedByte; outputStream.Write(buffer, 0, readCount); //更新进度 if (updateProgress != null) { updateProgress((int)totalBytes, (int)totalDownloadedByte);//更新进度条 } readCount = ftpStream.Read(buffer, 0, bufferSize); } ftpStream.Close(); outputStream.Close(); response.Close(); return true; } catch (Exception ex) { return false; throw; } finally { if (ftpStream != null) { ftpStream.Close(); } if (outputStream != null) { outputStream.Close(); } if (response != null) { response.Close(); } } } /// <summary> /// 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） /// </summary> /// <param name="remoteFileName">远程文件名</param> /// <param name="localFileName">保存本地的文件名（包含路径）</param> /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param> /// <param name="size">已下载文件流大小</param> /// <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> /// <returns>是否下载成功</returns> public static bool FtpBrokenDownload(string remoteFileName, string localFileName, bool ifCredential, long size, Action<int, int> updateProgress = null) { FtpWebRequest reqFTP, ftpsize; Stream ftpStream = null; FtpWebResponse response = null; FileStream outputStream = null; try { outputStream = new FileStream(localFileName, FileMode.Append); if (FtpServerIP == null || FtpServerIP.Trim().Length == 0) { throw new Exception("ftp下载目标服务器地址未设置！"); } Uri uri = new Uri("ftp://" + FtpServerIP + "/" + remoteFileName); ftpsize = (FtpWebRequest)FtpWebRequest.Create(uri); ftpsize.UseBinary = true; ftpsize.ContentOffset = size; reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri); reqFTP.UseBinary = true; reqFTP.KeepAlive = false; reqFTP.ContentOffset = size; if (ifCredential)//使用用户身份认证 { ftpsize.Credentials = new NetworkCredential(FtpUserID, FtpPassword); reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); } ftpsize.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse re = (FtpWebResponse)ftpsize.GetResponse(); long totalBytes = re.ContentLength; re.Close(); reqFTP.Method = WebRequestMethods.Ftp.DownloadFile; response = (FtpWebResponse)reqFTP.GetResponse(); ftpStream = response.GetResponseStream(); //更新进度 if (updateProgress != null) { updateProgress((int)totalBytes, 0);//更新进度条 } long totalDownloadedByte = 0; int bufferSize = 2048; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); while (readCount > 0) { totalDownloadedByte = readCount + totalDownloadedByte; outputStream.Write(buffer, 0, readCount); //更新进度 if (updateProgress != null) { updateProgress((int)totalBytes, (int)totalDownloadedByte);//更新进度条 } readCount = ftpStream.Read(buffer, 0, bufferSize); } ftpStream.Close(); outputStream.Close(); response.Close(); return true; } catch (Exception ex) { return false; throw; } finally { if (ftpStream != null) { ftpStream.Close(); } if (outputStream != null) { outputStream.Close(); } if (response != null) { response.Close(); } } } /// <summary> /// 从FTP服务器下载文件，指定本地路径和本地文件名 /// </summary> /// <param name="remoteFileName">远程文件名</param> /// <param name="localFileName">保存本地的文件名（包含路径）</param> /// <param name="ifCredential">是否启用身份验证（false：表示允许用户匿名下载）</param> /// <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> /// <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> /// <returns>是否下载成功</returns> public static bool FtpDownload(string remoteFileName, string localFileName, bool ifCredential, bool brokenOpen, Action<int, int> updateProgress = null) { if (brokenOpen) { try { long size = 0; if (File.Exists(localFileName)) { using (FileStream outputStream = new FileStream(localFileName, FileMode.Open)) { size = outputStream.Length; } } return FtpBrokenDownload(remoteFileName, localFileName, ifCredential, size, updateProgress); } catch { throw; } } else { return FtpDownload(remoteFileName, localFileName, ifCredential, updateProgress); } } #endregion #region 上传文件到FTP服务器 /// <summary> /// 上传文件到FTP服务器 /// </summary> /// <param name="localFullPath">本地带有完整路径的文件名</param> /// <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> /// <returns>是否下载成功</returns> public static bool FtpUploadFile(string localFullPathName, Action<int, int> updateProgress = null) { FtpWebRequest reqFTP; Stream stream = null; FtpWebResponse response = null; FileStream fs = null; try { FileInfo finfo = new FileInfo(localFullPathName); if (FtpServerIP == null || FtpServerIP.Trim().Length == 0) { throw new Exception("ftp上传目标服务器地址未设置！"); } Uri uri = new Uri("ftp://" + FtpServerIP + "/" + finfo.Name); reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri); reqFTP.KeepAlive = false; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);//用户，密码 reqFTP.Method = WebRequestMethods.Ftp.UploadFile;//向服务器发出下载请求命令 reqFTP.ContentLength = finfo.Length;//为request指定上传文件的大小 response = reqFTP.GetResponse() as FtpWebResponse; reqFTP.ContentLength = finfo.Length; int buffLength = 1024; byte[] buff = new byte[buffLength]; int contentLen; fs = finfo.OpenRead(); stream = reqFTP.GetRequestStream(); contentLen = fs.Read(buff, 0, buffLength); int allbye = (int)finfo.Length; //更新进度 if (updateProgress != null) { updateProgress((int)allbye, 0);//更新进度条 } int startbye = 0; while (contentLen != 0) { startbye = contentLen + startbye; stream.Write(buff, 0, contentLen); //更新进度 if (updateProgress != null) { updateProgress((int)allbye, (int)startbye);//更新进度条 } contentLen = fs.Read(buff, 0, buffLength); } stream.Close(); fs.Close(); response.Close(); return true; } catch (Exception ex) { return false; throw; } finally { if (fs != null) { fs.Close(); } if (stream != null) { stream.Close(); } if (response != null) { response.Close(); } } } /// <summary> /// 上传文件到FTP服务器(断点续传) /// </summary> /// <param name="localFullPath">本地文件全路径名称：C:\Users\JianKunKing\Desktop\IronPython脚本测试工具</param> /// <param name="remoteFilepath">远程文件所在文件夹路径</param> /// <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> /// <returns></returns> public static bool FtpUploadBroken(string localFullPath, string remoteFilepath, Action<int, int> updateProgress = null) { if (remoteFilepath == null) { remoteFilepath = ""; } string newFileName = string.Empty; bool success = true; FileInfo fileInf = new FileInfo(localFullPath); long allbye = (long)fileInf.Length; if (fileInf.Name.IndexOf("#") == -1) { newFileName = RemoveSpaces(fileInf.Name); } else { newFileName = fileInf.Name.Replace("#", "＃"); newFileName = RemoveSpaces(newFileName); } long startfilesize = GetFileSize(newFileName, remoteFilepath); if (startfilesize >= allbye) { return false; } long startbye = startfilesize; //更新进度 if (updateProgress != null) { updateProgress((int)allbye, (int)startfilesize);//更新进度条 } string uri; if (remoteFilepath.Length == 0) { uri = "ftp://" + FtpServerIP + "/" + newFileName; } else { uri = "ftp://" + FtpServerIP + "/" + remoteFilepath + "/" + newFileName; } FtpWebRequest reqFTP; // 根据uri创建FtpWebRequest对象 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); // ftp用户名和密码 reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); // 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.AppendFile; // 指定数据传输类型 reqFTP.UseBinary = true; // 上传文件时通知服务器文件的大小 reqFTP.ContentLength = fileInf.Length; int buffLength = 2048;// 缓冲大小设置为2kb byte[] buff = new byte[buffLength]; // 打开一个文件流 (System.IO.FileStream) 去读上传的文件 FileStream fs = fileInf.OpenRead(); Stream strm = null; try { // 把上传的文件写入流 strm = reqFTP.GetRequestStream(); // 每次读文件流的2kb fs.Seek(startfilesize, 0); int 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); startbye += contentLen; //更新进度 if (updateProgress != null) { updateProgress((int)allbye, (int)startbye);//更新进度条 } } // 关闭两个流 strm.Close(); fs.Close(); } catch { success = false; throw; } finally { if (fs != null) { fs.Close(); } if (strm != null) { strm.Close(); } } return success; } /// <summary> /// 去除空格 /// </summary> /// <param name="str"></param> /// <returns></returns> private static string RemoveSpaces(string str) { string a = ""; CharEnumerator CEnumerator = str.GetEnumerator(); while (CEnumerator.MoveNext()) { byte[] array = new byte[1]; array = System.Text.Encoding.ASCII.GetBytes(CEnumerator.Current.ToString()); int asciicode = (short)(array[0]); if (asciicode != 32) { a += CEnumerator.Current.ToString(); } } string sdate = System.DateTime.Now.Year.ToString() + System.DateTime.Now.Month.ToString() + System.DateTime.Now.Day.ToString() + System.DateTime.Now.Hour.ToString() + System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString() + System.DateTime.Now.Millisecond.ToString(); return a.Split('.')[a.Split('.').Length - 2] + "." + a.Split('.')[a.Split('.').Length - 1]; } /// <summary> /// 获取已上传文件大小 /// </summary> /// <param name="filename">文件名称</param> /// <param name="path">服务器文件路径</param> /// <returns></returns> public static long GetFileSize(string filename, string remoteFilepath) { long filesize = 0; try { FtpWebRequest reqFTP; FileInfo fi = new FileInfo(filename); string uri; if (remoteFilepath.Length == 0) { uri = "ftp://" + FtpServerIP + "/" + fi.Name; } else { uri = "ftp://" + FtpServerIP + "/" + remoteFilepath + "/" + fi.Name; } reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri); reqFTP.KeepAlive = false; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword);//用户，密码 reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); filesize = response.ContentLength; return filesize; } catch { return 0; } } //public void Connect(String path, string ftpUserID, string ftpPassword)//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); //} #endregion #region 获取当前目录下明细 /// <summary> /// 获取当前目录下明细(包含文件和文件夹) /// </summary> /// <returns></returns> public static string[] GetFilesDetailList() { string[] downloadFiles; try { StringBuilder result = new StringBuilder(); FtpWebRequest ftp; ftp = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI)); ftp.Credentials = new NetworkCredential(FtpUserID, FtpPassword); ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails; WebResponse response = ftp.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default); string line = reader.ReadLine(); while (line != null) { result.Append(line); result.Append("\n"); line = reader.ReadLine(); } result.Remove(result.ToString().LastIndexOf("\n"), 1); reader.Close(); response.Close(); return result.ToString().Split('\n'); } catch (Exception ex) { downloadFiles = null; throw ex; } } /// <summary> /// 获取当前目录下文件列表(仅文件) /// </summary> /// <returns></returns> public static string[] GetFileList(string mask) { string[] downloadFiles; StringBuilder result = new StringBuilder(); FtpWebRequest reqFTP; try { reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI)); reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); reqFTP.Method = WebRequestMethods.Ftp.ListDirectory; WebResponse response = reqFTP.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default); string line = reader.ReadLine(); while (line != null) { if (mask.Trim() != string.Empty && mask.Trim() != "*.*") { string mask_ = mask.Substring(0, mask.IndexOf("*")); if (line.Substring(0, mask_.Length) == mask_) { result.Append(line); result.Append("\n"); } } else { result.Append(line); result.Append("\n"); } line = reader.ReadLine(); } result.Remove(result.ToString().LastIndexOf('\n'), 1); reader.Close(); response.Close(); return result.ToString().Split('\n'); } catch (Exception ex) { downloadFiles = null; throw ex; } } /// <summary> /// 获取当前目录下所有的文件夹列表(仅文件夹) /// </summary> /// <returns></returns> public static string[] GetDirectoryList() { string[] drectory = GetFilesDetailList(); string m = string.Empty; foreach (string str in drectory) { int dirPos = str.IndexOf("<DIR>"); if (dirPos > 0) { /*判断 Windows 风格*/ m += str.Substring(dirPos + 5).Trim() + "\n"; } else if (str.Trim().Substring(0, 1).ToUpper() == "D") { /*判断 Unix 风格*/ string dir = str.Substring(54).Trim(); if (dir != "." && dir != "..") { m += dir + "\n"; } } } char[] n = new char[] { '\n' }; return m.Split(n); } #endregion #region 删除文件及文件夹 /// <summary> /// 删除文件 /// </summary> /// <param name="fileName"></param> public static bool Delete(string fileName) { try { string uri = ftpURI + fileName; FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); reqFTP.KeepAlive = false; reqFTP.Method = WebRequestMethods.Ftp.DeleteFile; string result = String.Empty; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); long size = response.ContentLength; Stream datastream = response.GetResponseStream(); StreamReader sr = new StreamReader(datastream); result = sr.ReadToEnd(); sr.Close(); datastream.Close(); response.Close(); return true; } catch (Exception ex) { return false; throw ex; } } /// <summary> /// 删除文件夹 /// </summary> /// <param name="folderName"></param> public static void RemoveDirectory(string folderName) { try { string uri = ftpURI + folderName; FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); reqFTP.KeepAlive = false; reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory; string result = String.Empty; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); long size = response.ContentLength; Stream datastream = response.GetResponseStream(); StreamReader sr = new StreamReader(datastream); result = sr.ReadToEnd(); sr.Close(); datastream.Close(); response.Close(); } catch (Exception ex) { throw ex; } } #endregion #region 其他操作 /// <summary> /// 获取指定文件大小 /// </summary> /// <param name="filename"></param> /// <returns></returns> public static long GetFileSize(string filename) { FtpWebRequest reqFTP; long fileSize = 0; try { reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + filename)); reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); fileSize = response.ContentLength; ftpStream.Close(); response.Close(); } catch (Exception ex) { throw ex; } return fileSize; } /// <summary> /// 判断当前目录下指定的子目录是否存在 /// </summary> /// <param name="RemoteDirectoryName">指定的目录名</param> public bool DirectoryExist(string RemoteDirectoryName) { try { string[] dirList = GetDirectoryList(); foreach (string str in dirList) { if (str.Trim() == RemoteDirectoryName.Trim()) { return true; } } return false; } catch { return false; } } /// <summary> /// 判断当前目录下指定的文件是否存在 /// </summary> /// <param name="RemoteFileName">远程文件名</param> public bool FileExist(string RemoteFileName) { string[] fileList = GetFileList("*.*"); foreach (string str in fileList) { if (str.Trim() == RemoteFileName.Trim()) { return true; } } return false; } /// <summary> /// 创建文件夹 /// </summary> /// <param name="dirName"></param> public void MakeDir(string dirName) { FtpWebRequest reqFTP; try { // dirName = name of the directory to create. reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + dirName)); reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); ftpStream.Close(); response.Close(); } catch (Exception ex) { throw ex; } } /// <summary> /// 改名 /// </summary> /// <param name="currentFilename"></param> /// <param name="newFilename"></param> public void ReName(string currentFilename, string newFilename) { FtpWebRequest reqFTP; try { reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + currentFilename)); reqFTP.Method = WebRequestMethods.Ftp.Rename; reqFTP.RenameTo = newFilename; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(FtpUserID, FtpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); ftpStream.Close(); response.Close(); } catch (Exception ex) { throw ex; } } /// <summary> /// 移动文件 /// </summary> /// <param name="currentFilename"></param> /// <param name="newFilename"></param> public void MovieFile(string currentFilename, string newDirectory) { ReName(currentFilename, newDirectory); } /// <summary> /// 切换当前目录 /// </summary> /// <param name="DirectoryName"></param> /// <param name="IsRoot">true 绝对路径 false 相对路径</param> public void GotoDirectory(string DirectoryName, bool IsRoot) { if (IsRoot) { ftpRemotePath = DirectoryName; } else { ftpRemotePath += DirectoryName + "/"; } ftpURI = "ftp://" + FtpServerIP + "/" + ftpRemotePath + "/"; } #endregion } } FTPHelper
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net; using System.IO; public class FTPHelper { /// <summary> /// FTP请求对象 /// </summary> FtpWebRequest request = null; /// <summary> /// FTP响应对象 /// </summary> FtpWebResponse response = null; /// <summary> /// FTP服务器地址 /// </summary> public string ftpURI { get; private set; } /// <summary> /// FTP服务器IP /// </summary> public string ftpServerIP { get; private set; } /// <summary> /// FTP服务器默认目录 /// </summary> public string ftpRemotePath { get; private set; } /// <summary> /// FTP服务器登录用户名 /// </summary> public string ftpUserID { get; private set; } /// <summary> /// FTP服务器登录密码 /// </summary> public string ftpPassword { get; private set; } /// <summary> /// 初始化 /// </summary> /// <param name="FtpServerIP">FTP连接地址</param> /// <param name="FtpRemotePath">指定FTP连接成功后的当前目录, 如果不指定即默认为根目录</param> /// <param name="FtpUserID">用户名</param> /// <param name="FtpPassword">密码</param> public FTPHelper(string ftpServerIP, string ftpRemotePath, string ftpUserID, string ftpPassword) { this.ftpServerIP = ftpServerIP; this.ftpRemotePath = ftpRemotePath; this.ftpUserID = ftpUserID; this.ftpPassword = ftpPassword; this.ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/"; } ~FTPHelper() { if (response != null) { response.Close(); response = null; } if (request != null) { request.Abort(); request = null; } } /// <summary> /// 建立FTP链接,返回响应对象 /// </summary> /// <param name="uri">FTP地址</param> /// <param name="ftpMethod">操作命令</param> /// <returns></returns> private FtpWebResponse Open(Uri uri, string ftpMethod) { request = (FtpWebRequest)FtpWebRequest.Create(uri); request.Method = ftpMethod; request.UseBinary = true; request.KeepAlive = false; request.Credentials = new NetworkCredential(this.ftpUserID, this.ftpPassword); return (FtpWebResponse)request.GetResponse(); } /// <summary> /// 建立FTP链接,返回请求对象 /// </summary> /// <param name="uri">FTP地址</param> /// <param name="ftpMethod">操作命令</param> private FtpWebRequest OpenRequest(Uri uri, string ftpMethod) { request = (FtpWebRequest)WebRequest.Create(uri); request.Method = ftpMethod; request.UseBinary = true; request.KeepAlive = false; request.Credentials = new NetworkCredential(this.ftpUserID, this.ftpPassword); return request; } /// <summary> /// 创建目录 /// </summary> /// <param name="remoteDirectoryName">目录名</param> public void CreateDirectory(string remoteDirectoryName) { response = Open(new Uri(ftpURI + remoteDirectoryName), WebRequestMethods.Ftp.MakeDirectory); } /// <summary> /// 更改目录或文件名 /// </summary> /// <param name="currentName">当前名称</param> /// <param name="newName">修改后新名称</param> public void ReName(string currentName, string newName) { request = OpenRequest(new Uri(ftpURI + currentName), WebRequestMethods.Ftp.Rename); request.RenameTo = newName; response = (FtpWebResponse)request.GetResponse(); } /// <summary> /// 切换当前目录 /// </summary> /// <param name="IsRoot">true:绝对路径 false:相对路径</param> public void GotoDirectory(string DirectoryName, bool IsRoot) { if (IsRoot) ftpRemotePath = DirectoryName; else ftpRemotePath += "/" + DirectoryName; ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/"; } /// <summary> /// 删除目录(包括下面所有子目录和子文件) /// </summary> /// <param name="remoteDirectoryName">要删除的带路径目录名：如web/test</param> /* * 例：删除test目录 FTPHelper helper = new FTPHelper("x.x.x.x", "web", "user", "password"); helper.RemoveDirectory("web/test"); */ public void RemoveDirectory(string remoteDirectoryName) { GotoDirectory(remoteDirectoryName, true); var listAll = ListFilesAndDirectories(); foreach (var m in listAll) { if (m.IsDirectory) RemoveDirectory(m.Path); else DeleteFile(m.Name); } GotoDirectory(remoteDirectoryName, true); response = Open(new Uri(ftpURI), WebRequestMethods.Ftp.RemoveDirectory); } /// <summary> /// 文件上传 /// </summary> /// <param name="localFilePath">本地文件路径</param> public void Upload(string localFilePath) { FileInfo fileInf = new FileInfo(localFilePath); request = OpenRequest(new Uri(ftpURI + fileInf.Name), WebRequestMethods.Ftp.UploadFile); request.ContentLength = fileInf.Length; int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; using (var fs = fileInf.OpenRead()) { using (var strm = request.GetRequestStream()) { contentLen = fs.Read(buff, 0, buffLength); while (contentLen != 0) { strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } } } } /// <summary> /// 删除文件 /// </summary> /// <param name="remoteFileName">要删除的文件名</param> public void DeleteFile(string remoteFileName) { response = Open(new Uri(ftpURI + remoteFileName), WebRequestMethods.Ftp.DeleteFile); } /// <summary> /// 获取当前目录的文件和一级子目录信息 /// </summary> /// <returns></returns> public List<FileStruct> ListFilesAndDirectories() { var fileList = new List<FileStruct>(); response = Open(new Uri(ftpURI), WebRequestMethods.Ftp.ListDirectoryDetails); using (var stream = response.GetResponseStream()) { using (var sr = new StreamReader(stream)) { string line = null; while ((line = sr.ReadLine()) != null) { //line的格式如下： //08-18-13 11:05PM <DIR> aspnet_client //09-22-13 11:39PM 2946 Default.aspx DateTime dtDate = DateTime.ParseExact(line.Substring(0, 8), "MM-dd-yy", null); DateTime dtDateTime = DateTime.Parse(dtDate.ToString("yyyy-MM-dd") + line.Substring(8, 9)); string[] arrs = line.Split(' '); var model = new FileStruct() { IsDirectory = line.IndexOf("<DIR>") > 0 ? true : false, CreateTime = dtDateTime, Name = arrs[arrs.Length - 1], Path = ftpRemotePath + "/" + arrs[arrs.Length - 1] }; fileList.Add(model); } } } return fileList; } /// <summary> /// 列出当前目录的所有文件 /// </summary> public List<FileStruct> ListFiles() { var listAll = ListFilesAndDirectories(); var listFile = listAll.Where(m => m.IsDirectory == false).ToList(); return listFile; } /// <summary> /// 列出当前目录的所有一级子目录 /// </summary> public List<FileStruct> ListDirectories() { var listAll = ListFilesAndDirectories(); var listFile = listAll.Where(m => m.IsDirectory == true).ToList(); return listFile; } /// <summary> /// 判断当前目录下指定的子目录或文件是否存在 /// </summary> /// <param name="remoteName">指定的目录或文件名</param> public bool IsExist(string remoteName) { var list = ListFilesAndDirectories(); if (list.Count(m => m.Name == remoteName) > 0) return true; return false; } /// <summary> /// 判断当前目录下指定的一级子目录是否存在 /// </summary> /// <param name="RemoteDirectoryName">指定的目录名</param> public bool IsDirectoryExist(string remoteDirectoryName) { var listDir = ListDirectories(); if (listDir.Count(m => m.Name == remoteDirectoryName) > 0) return true; return false; } /// <summary> /// 判断当前目录下指定的子文件是否存在 /// </summary> /// <param name="RemoteFileName">远程文件名</param> public bool IsFileExist(string remoteFileName) { var listFile = ListFiles(); if (listFile.Count(m => m.Name == remoteFileName) > 0) return true; return false; } /// <summary> /// 下载 /// </summary> /// <param name="saveFilePath">下载后的保存路径</param> /// <param name="downloadFileName">要下载的文件名</param> public void Download(string saveFilePath, string downloadFileName) { using (FileStream outputStream = new FileStream(saveFilePath + "\\" + downloadFileName, FileMode.Create)) { response = Open(new Uri(ftpURI + downloadFileName), WebRequestMethods.Ftp.DownloadFile); using (Stream ftpStream = response.GetResponseStream()) { long cl = response.ContentLength; int bufferSize = 2048; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); } } } } } public class FileStruct { /// <summary> /// 是否为目录 /// </summary> public bool IsDirectory { get; set; } /// <summary> /// 创建时间 /// </summary> public DateTime CreateTime { get; set; } /// <summary> /// 文件或目录名称 /// </summary> public string Name { get; set; } /// <summary> /// 路径 /// </summary> public string Path { get; set; } }
