如下代码是关于C# FTP操作类的代码。
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
namespace Utility
{
public class FtpUpDown
{
string ftpServerIP;
string ftpUserID;
string ftpPassword;
FtpWebRequest reqFTP;
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
}
public FtpUpDown(string ftpServerIP, string ftpUserID, string ftpPassword)
{
this.ftpServerIP = ftpServerIP;
this.ftpUserID = ftpUserID;
this.ftpPassword = ftpPassword;
}
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
try
{
Connect(path);
reqFTP.Method = WRMethods;
WebResponse response = reqFTP.GetResponse();
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)
{
Log.WriteError("Get FileList Error:" + ex.Message);
downloadFiles = null;
return downloadFiles;
}
}
{
}
{
}
{
FileInfo fileInf = new FileInfo(filename);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.ContentLength = fileInf.Length;
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
FileStream fs = fileInf.OpenRead();
try
{
Stream strm = reqFTP.GetRequestStream();
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
fs.Close();
}
catch (Exception ex)
{
Log.WriteError( "Upload Error:" + ex.Message);
}
}
{
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,无法下载", newFileName);
return false;
}
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},无法下载", ex.Message);
return false;
}
}
public void DeleteFileName(string fileName)
{
try
{
FileInfo fileInf = new FileInfo(fileName);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Log.WriteError("删除错误:" + ex.Message);
}
}
public void MakeDir(string dirName)
{
try
{
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Log.WriteError("创建目录错误:" + ex.Message);
}
}
public void delDir(string dirName)
{
try
{
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Log.WriteError("删除目录错误:" + ex.Message);
}
}
public long GetFileSize(string filename)
{
long fileSize = 0;
try
{
FileInfo fileInf = new FileInfo(filename);
reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
fileSize = response.ContentLength;
response.Close();
}
catch (Exception ex)
{
Log.WriteError("获得文件大小错误:" + ex.Message);
}
return fileSize;
}
public void Rename(string currentFilename, string newFilename)
{
try
{
FileInfo fileInf = new FileInfo(currentFilename);
reqFTP.Method = WebRequestMethods.Ftp.Rename;
reqFTP.RenameTo = newFilename;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Log.WriteError("文件改名错误:" + ex.Message);
}
}
public Stream ReadFile(string fileName)
{
try
{
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
return ftpStream;
}
catch (Exception ex)
{
Log.WriteError("读取文件错误:" + ex.Message);
return null;
}
}
public string[] GetFilesDetailList()
{
}
public string[] GetFilesDetailList(string path)
{
}
public bool fileCheckExist(string fileName)
{
bool success = false;
FtpWebResponse response = null;
StreamReader reader = null;
try
{
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
response = (FtpWebResponse)reqFTP.GetResponse();
reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
if (line != null)
{
success = true;
}
}
catch (Exception)
{
success = false;
}
finally
{
if (reader != null)
{
reader.Close();
}
if (response != null)
{
response.Close();
}
}
return success;
}
}
}