using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Text.RegularExpressions;
namespace DotNet.Utilities
{
public class FTPHelper
{
#region 字段
string ftpURI;
string ftpUserID;
string ftpServerIP;
string ftpPassword;
string ftpRemotePath;
#endregion
/// <summary>
/// 连接FTP服务器
/// </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)
{
ftpServerIP = FtpServerIP;
ftpRemotePath = FtpRemotePath;
ftpUserID = FtpUserID;
ftpPassword = FtpPassword;
ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/";
}
/// <summary>
/// 上传
/// </summary>
public void Upload(string filename)
{
FileInfo fileInf
= new FileInfo
(filename
); FtpWebRequest reqFTP;
reqFTP
= (FtpWebRequest
)FtpWebRequest
.Create(new Uri
(ftpURI
+ fileInf
.Name)); reqFTP
.Credentials = new NetworkCredential
(ftpUserID, ftpPassword
); reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
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)
{
throw new Exception
(ex
.Message); }
}
/// <summary>
/// 下载
/// </summary>
public void Download(string filePath, string fileName)
{
try
{
FileStream outputStream
= new FileStream
(filePath
+ "\\" + fileName, FileMode
.Create); FtpWebRequest reqFTP;
reqFTP
= (FtpWebRequest
)FtpWebRequest
.Create(new Uri
(ftpURI
+ fileName
)); reqFTP
.Credentials = new NetworkCredential
(ftpUserID, ftpPassword
); reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
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);
while (readCount > 0)
{
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}
ftpStream.Close();
outputStream.Close();
response.Close();
}
catch (Exception ex)
{
throw new Exception
(ex
.Message); }
}
/// <summary>
/// 删除文件
/// </summary>
public void Delete(string fileName)
{
try
{
FtpWebRequest reqFTP;
reqFTP
= (FtpWebRequest
)FtpWebRequest
.Create(new Uri
(ftpURI
+ fileName
)); reqFTP
.Credentials = new NetworkCredential
(ftpUserID, ftpPassword
); reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
reqFTP.KeepAlive = false;
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 new Exception
(ex
.Message); }
}
/// <summary>
/// 获取当前目录下明细(包含文件和文件夹)
/// </summary>
public string[] GetFilesDetailList()
{
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()); string line = reader.ReadLine();
line = reader.ReadLine();
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)
{
throw new Exception
(ex
.Message); }
}
/// <summary>
/// 获取FTP文件列表(包括文件夹)
/// </summary>
private string[] GetAllList(string url)
{
List
<string> list
= new List
<string>(); FtpWebRequest req
= (FtpWebRequest
)WebRequest
.Create(new Uri
(url
)); req
.Credentials = new NetworkCredential
(ftpPassword, ftpPassword
); req.Method = WebRequestMethods.Ftp.ListDirectory;
req.UseBinary = true;
req.UsePassive = true;
try
{
using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())
{
using (StreamReader sr
= new StreamReader
(res
.GetResponseStream())) {
string s;
while ((s = sr.ReadLine()) != null)
{
list.Add(s);
}
}
}
}
catch (Exception ex)
{
throw (ex);
}
return list.ToArray();
}
/// <summary>
/// 获取当前目录下文件列表(不包括文件夹)
/// </summary>
public string[] GetFileList(string url)
{
StringBuilder result
= new StringBuilder
(); FtpWebRequest reqFTP;
try
{
reqFTP
= (FtpWebRequest
)FtpWebRequest
.Create(new Uri
(url
)); reqFTP.UseBinary = true;
reqFTP
.Credentials = new NetworkCredential
(ftpPassword, ftpPassword
); reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
WebResponse response = reqFTP.GetResponse();
StreamReader reader
= new StreamReader
(response
.GetResponseStream()); string line = reader.ReadLine();
while (line != null)
{
if (line.IndexOf("<DIR>") == -1)
{
result.Append(Regex.Match(line, @"[\S]+ [\S]+", RegexOptions.IgnoreCase).Value.Split(' ')[1]);
result.Append("\n");
}
line = reader.ReadLine();
}
result.Remove(result.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
}
catch (Exception ex)
{
throw (ex);
}
return result.ToString().Split('\n');
}
/// <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>
public void MakeDir(string dirName)
{
FtpWebRequest reqFTP;
try
{
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)
{ }
}
/// <summary>
/// 获取指定文件大小
/// </summary>
public 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)
{ }
return fileSize;
}
/// <summary>
/// 更改文件名
/// </summary>
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)
{ }
}
/// <summary>
/// 移动文件
/// </summary>
public void MovieFile(string currentFilename, string newDirectory)
{
ReName(currentFilename, newDirectory);
}
/// <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 + "/";
}
}
}
//csharp/8615