C# .NET FTP上传文件夹操作 

#region 上传文件
 /// <summary>
 /// 上传文件
 /// </summary>
 /// <param name="localFile">要上传到FTP服务器的文件</param>
 /// <param name="ftpPath"></param>
 public static void UpLoadFile(string localFile, string ftpPath, string ftpUser, string ftpPassword)
 {
 if (ftpUser == null)
 {
 ftpUser = "";
 }
 if (ftpPassword == null)
 {
 ftpPassword = "";
 }if (!File.Exists(localFile))
 {
 MyLog.ShowMessage("文件：“" + localFile + "” 不存在！");
 return;
 }FtpWebRequest ftpWebRequest = null;
 FileStream localFileStream = null;
 Stream requestStream = null;
 try
 {
 ftpWebRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath));
 ftpWebRequest.Credentials = new NetworkCredential(ftpUser, ftpPassword);
 ftpWebRequest.UseBinary = true;
 ftpWebRequest.KeepAlive = false;
 ftpWebRequest.Method = WebRequestMethods.Ftp.UploadFile;
 ftpWebRequest.ContentLength = localFile.Length;
 int buffLength = 4096;
 byte[] buff = new byte[buffLength];
 int contentLen;
 localFileStream = new FileInfo(localFile).OpenRead();
 requestStream = ftpWebRequest.GetRequestStream();
 contentLen = localFileStream.Read(buff, 0, buffLength);
 while (contentLen != 0)
 {
 requestStream.Write(buff, 0, contentLen);
 contentLen = localFileStream.Read(buff, 0, buffLength);
 }
 }
 catch (Exception ex)
 {
 MyLog.ShowMessage(ex.Message, "FileUpLoad0001");
 }
 finally
 {
 if (requestStream != null)
 {
 requestStream.Close();
 }
 if (localFileStream != null)
 {
 localFileStream.Close();
 }
 }
 }
 #endregion 
#region 上传文件夹
 /// <summary>
 /// 获取目录下的详细信息
 /// </summary>
 /// <param name="localDir">本机目录</param>
 /// <returns></returns>
 private static List<List<string>> GetDirDetails(string localDir)
 {
 List<List<string>> infos = new List<List<string>>();
 try
 {
 infos.Add(Directory.GetFiles(localDir).ToList()); //获取当前目录的文件infos.Add(Directory.GetDirectories(localDir).ToList()); //获取当前目录的目录
for (int i = 0; i < infos[0].Count; i++)
 {
 int index = infos[0][i].LastIndexOf(@"\");
 infos[0][i] = infos[0][i].Substring(index + 1);
 }
 for (int i = 0; i < infos[1].Count; i++)
 {
 int index = infos[1][i].LastIndexOf(@"\");
 infos[1][i] = infos[1][i].Substring(index + 1);
 }
 }
 catch (Exception ex)
 {
 ex.ToString();
 }
 return infos;
 }/// <summary>
 /// 上传整个目录
 /// </summary>
 /// <param name="localDir">要上传的目录的上一级目录</param>
 /// <param name="ftpPath">FTP路径</param>
 /// <param name="dirName">要上传的目录名</param>
 /// <param name="ftpUser">FTP用户名（匿名为空）</param>
 /// <param name="ftpPassword">FTP登录密码（匿名为空）</param>
 public static void UploadDirectory(string localDir, string ftpPath, string dirName, string ftpUser, string ftpPassword)
 {
 if (ftpUser == null)
 {
 ftpUser = "";
 }
 if (ftpPassword == null)
 {
 ftpPassword = "";
 }string dir = localDir + dirName + @"\"; //获取当前目录（父目录在目录名）
if (!Directory.Exists(dir))
 {
 MyLog.ShowMessage("目录：“" + dir + "” 不存在！");
 return;
 }if (!CheckDirectoryExist(ftpPath,dirName))
 {
 MakeDir(ftpPath, dirName);
 } 
List<List<string>> infos = GetDirDetails(dir); //获取当前目录下的所有文件和文件夹
//先上传文件
 MyLog.ShowMessage(dir + "下的文件数：" + infos[0].Count.ToString());
 for (int i = 0; i < infos[0].Count; i++)
 {
 Console.WriteLine(infos[0][i]);
 UpLoadFile(dir + infos[0][i], ftpPath + dirName + @"/" + infos[0][i], ftpUser, ftpPassword);
 }
 //再处理文件夹
 MyLog.ShowMessage(dir + "下的目录数：" + infos[1].Count.ToString());
 for (int i = 0; i < infos[1].Count; i++)
 {
 UploadDirectory(dir, ftpPath + dirName + @"/", infos[1][i], ftpUser, ftpPassword);
 }
 } 
/// <summary>
 /// 新建目录
 /// </summary>
 /// <param name="ftpPath"></param>
 /// <param name="dirName"></param>
 public static void MakeDir(string ftpPath, string dirName)
 {
 try
 {
 //实例化FTP连接
 FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath + dirName));
 //指定FTP操作类型为创建目录
 request.Method = WebRequestMethods.Ftp.MakeDirectory;
 //获取FTP服务器的响应
 FtpWebResponse response = (FtpWebResponse)request.GetResponse();
 response.Close();
 }
 catch (Exception ex)
 {
 MyLog.ShowMessage(ex.Message, "MakeDir");
 }
 }/// <summary>
 /// 检查目录是否存在
 /// </summary>
 /// <param name="ftpPath">要检查的目录的上一级目录</param>
 /// <param name="dirName">要检查的目录名</param>
 /// <returns>存在返回true，否则false</returns>
 public static bool CheckDirectoryExist(string ftpPath,string dirName)
 {
 bool result = false;
 try
 {
 //实例化FTP连接
 FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath));
 //指定FTP操作类型为创建目录
 request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
 //获取FTP服务器的响应
 FtpWebResponse response = (FtpWebResponse)request.GetResponse();
 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.Default);StringBuilder str = new StringBuilder();
 string line = sr.ReadLine();
 while (line != null)
 {
 str.Append(line);
 str.Append("|");
 line = sr.ReadLine();
 }
 string[] datas = str.ToString().Split('|');for (int i = 0; i < datas.Length; i++)
 {
 if (datas[i].Contains("<DIR>"))
 {
 int index = datas[i].IndexOf("<DIR>");
 string name = datas[i].Substring(index + 5).Trim();
 if (name==dirName)
 {
 result = true;
 break;
 }
 }
 }sr.Close();
 sr.Dispose();
 response.Close(); 
 }
 catch (Exception ex)
 {
 MyLog.ShowMessage(ex.Message, "MakeDir");
 }
 return result;
 }

 

调用：

//FTP地址
 string ftpPath = @"Ftp://192.168.1.68:21/";
 //本机要上传的目录的父目录
 string localPath = @"D:\";
 //要上传的目录名
 string fileName = @"haha";
 FTPClient.UploadDirectory(localPath, ftpPath, fileName, "", "");