c# 操作FTP文件類
string ftpServerIP;
string ftpUserID;
string ftpPassword;
FtpWebRequest reqFTP;
private void Connect(String path) // 連接ftp
{
// 根據uri創建FtpWebRequest對象
reqFTP = (FtpWebRequest)FtpWebRequest.Create( new Uri(path));
// 指定數據傳輸類型
reqFTP.UseBinary = true;
// ftp用戶名和密碼
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
}
public FtpUpDown( string ftpServerIP, string ftpUserID, string ftpPassword)
{
this.ftpServerIP = ftpServerIP;
this.ftpUserID = ftpUserID;
this.ftpPassword = ftpPassword;
}
// 都調用這個
private string[] GetFileList( string path, string WRMethods) // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
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)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
downloadFiles = null;
return downloadFiles;
}
}
public string[] GetFileList( string path) // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
return GetFileList( " ftp:// " + ftpServerIP + " / " + path, WebRequestMethods.Ftp.ListDirectory);
}
public string[] GetFileList() // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
return GetFileList( " ftp:// " + ftpServerIP + " / ", WebRequestMethods.Ftp.ListDirectory);
}
public void Upload( string filename, String directory, String newFileName) // 上面的代碼實現了從ftp服務器上載文件的功能
{
FileInfo fileInf = new FileInfo(filename);
string uri = " ftp:// " + ftpServerIP + " / " + directory + " / " + newFileName;
if (!DirectoryIsExist(directory))
{
MakeDir(directory);
}
Connect(uri); // 連接
// 默認為true，連接不會被關閉
// 在一個命令之后被執行
reqFTP.KeepAlive = false;
// 指定執行什么命令
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
// 上傳文件時通知服務器文件的大小
reqFTP.ContentLength = fileInf.Length;
// 緩沖大小設置為kb
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
// 打開一個文件流(System.IO.FileStream) 去讀上傳的文件
FileStream fs = fileInf.OpenRead();
try
{
// 把上傳的文件寫入流
Stream strm = reqFTP.GetRequestStream();
// 每次讀文件流的kb
contentLen = fs.Read(buff, 0, buffLength);
// 流內容沒有結束
while (contentLen != 0)
{
// 把內容從file stream 寫入upload stream
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
// 關閉兩個流
strm.Close();
fs.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, " Upload Error ");
}
}
public bool Download( string filePath, string fileName, out string errorinfo) /// /上面的代碼實現了從ftp服務器下載文件的功能
{
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,無法下載 ", newFileName);
return false;
}
string url = " ftp:// " + ftpServerIP + " / " + fileName;
Connect(url); // 連接
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},無法下載 ", ex.Message);
return false;
}
}
// 刪除文件
public void DeleteFileName( string fileName)
{
try
{
FileInfo fileInf = new FileInfo(fileName);
string uri = " ftp:// " + ftpServerIP + " / " + fileInf.Name;
Connect(uri); // 連接
// 默認為true，連接不會被關閉
// 在一個命令之后被執行
reqFTP.KeepAlive = false;
// 指定執行什么命令
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, " 刪除錯誤 ");
}
}
// 創建目錄
public void MakeDir( string dirName)
{
try
{
string uri = " ftp:// " + ftpServerIP + " / " + dirName;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 刪除目錄
public void delDir( string dirName)
{
try
{
string uri = " ftp:// " + ftpServerIP + " / " + dirName;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 獲得文件大小
public long GetFileSize( string filename)
{
long fileSize = 0;
try
{
FileInfo fileInf = new FileInfo(filename);
string uri = " ftp:// " + ftpServerIP + " / " + fileInf.Name;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
fileSize = response.ContentLength;
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(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); // 連接
reqFTP.Method = WebRequestMethods.Ftp.Rename;
reqFTP.RenameTo = newFilename;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
// Stream ftpStream = response.GetResponseStream();
// ftpStream.Close();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 獲得文件明晰
public string[] GetFilesDetailList()
{
return GetFileList( " ftp:// " + ftpServerIP + " / ", WebRequestMethods.Ftp.ListDirectoryDetails);
}
// 獲得文件明晰
public string[] GetFilesDetailList( string path)
{
return GetFileList( " ftp:// " + ftpServerIP + " / " + path, WebRequestMethods.Ftp.ListDirectoryDetails);
}
/// <summary>
/// 檢測目錄是否存在
/// </summary>
/// <param name="dirName"></param>
/// <returns> false不存在，true存在 </returns>
public Boolean DirectoryIsExist( string dirName)
{
string[] value = GetFileList(dirName);
if (value == null)
{
return false;
}
else
{
return true;
}
}
string ftpUserID;
string ftpPassword;
FtpWebRequest reqFTP;
private void Connect(String path) // 連接ftp
{
// 根據uri創建FtpWebRequest對象
reqFTP = (FtpWebRequest)FtpWebRequest.Create( new Uri(path));
// 指定數據傳輸類型
reqFTP.UseBinary = true;
// ftp用戶名和密碼
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
}
public FtpUpDown( string ftpServerIP, string ftpUserID, string ftpPassword)
{
this.ftpServerIP = ftpServerIP;
this.ftpUserID = ftpUserID;
this.ftpPassword = ftpPassword;
}
// 都調用這個
private string[] GetFileList( string path, string WRMethods) // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
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)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
downloadFiles = null;
return downloadFiles;
}
}
public string[] GetFileList( string path) // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
return GetFileList( " ftp:// " + ftpServerIP + " / " + path, WebRequestMethods.Ftp.ListDirectory);
}
public string[] GetFileList() // 上面的代碼示例了如何從ftp服務器上獲得文件列表
{
return GetFileList( " ftp:// " + ftpServerIP + " / ", WebRequestMethods.Ftp.ListDirectory);
}
public void Upload( string filename, String directory, String newFileName) // 上面的代碼實現了從ftp服務器上載文件的功能
{
FileInfo fileInf = new FileInfo(filename);
string uri = " ftp:// " + ftpServerIP + " / " + directory + " / " + newFileName;
if (!DirectoryIsExist(directory))
{
MakeDir(directory);
}
Connect(uri); // 連接
// 默認為true，連接不會被關閉
// 在一個命令之后被執行
reqFTP.KeepAlive = false;
// 指定執行什么命令
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
// 上傳文件時通知服務器文件的大小
reqFTP.ContentLength = fileInf.Length;
// 緩沖大小設置為kb
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
// 打開一個文件流(System.IO.FileStream) 去讀上傳的文件
FileStream fs = fileInf.OpenRead();
try
{
// 把上傳的文件寫入流
Stream strm = reqFTP.GetRequestStream();
// 每次讀文件流的kb
contentLen = fs.Read(buff, 0, buffLength);
// 流內容沒有結束
while (contentLen != 0)
{
// 把內容從file stream 寫入upload stream
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
// 關閉兩個流
strm.Close();
fs.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, " Upload Error ");
}
}
public bool Download( string filePath, string fileName, out string errorinfo) /// /上面的代碼實現了從ftp服務器下載文件的功能
{
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,無法下載 ", newFileName);
return false;
}
string url = " ftp:// " + ftpServerIP + " / " + fileName;
Connect(url); // 連接
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},無法下載 ", ex.Message);
return false;
}
}
// 刪除文件
public void DeleteFileName( string fileName)
{
try
{
FileInfo fileInf = new FileInfo(fileName);
string uri = " ftp:// " + ftpServerIP + " / " + fileInf.Name;
Connect(uri); // 連接
// 默認為true，連接不會被關閉
// 在一個命令之后被執行
reqFTP.KeepAlive = false;
// 指定執行什么命令
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, " 刪除錯誤 ");
}
}
// 創建目錄
public void MakeDir( string dirName)
{
try
{
string uri = " ftp:// " + ftpServerIP + " / " + dirName;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 刪除目錄
public void delDir( string dirName)
{
try
{
string uri = " ftp:// " + ftpServerIP + " / " + dirName;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 獲得文件大小
public long GetFileSize( string filename)
{
long fileSize = 0;
try
{
FileInfo fileInf = new FileInfo(filename);
string uri = " ftp:// " + ftpServerIP + " / " + fileInf.Name;
Connect(uri); // 連接
reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
fileSize = response.ContentLength;
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(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); // 連接
reqFTP.Method = WebRequestMethods.Ftp.Rename;
reqFTP.RenameTo = newFilename;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
// Stream ftpStream = response.GetResponseStream();
// ftpStream.Close();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// 獲得文件明晰
public string[] GetFilesDetailList()
{
return GetFileList( " ftp:// " + ftpServerIP + " / ", WebRequestMethods.Ftp.ListDirectoryDetails);
}
// 獲得文件明晰
public string[] GetFilesDetailList( string path)
{
return GetFileList( " ftp:// " + ftpServerIP + " / " + path, WebRequestMethods.Ftp.ListDirectoryDetails);
}
/// <summary>
/// 檢測目錄是否存在
/// </summary>
/// <param name="dirName"></param>
/// <returns> false不存在，true存在 </returns>
public Boolean DirectoryIsExist( string dirName)
{
string[] value = GetFileList(dirName);
if (value == null)
{
return false;
}
else
{
return true;
}
}