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, "", "");