ftp 上传，下载，删除文件，创建文件夹，删除文夹，重代码,CSharp代码库,德仔网

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【CSharp】 ftp 上传，下载，删除文件，创建文件夹，删除文夹，重
作者:Dezai.CN / 发布于2013/8/19/ 975

	using System;
	using System.Data;
	using System.Configuration;
	using System.Linq;
	using System.Web;
	using System.Web.Security;
	using System.Web.UI;
	using System.Web.UI.HtmlControls;
	using System.Web.UI.WebControls;
	using System.Web.UI.WebControls.WebParts;
	using System.Xml.Linq;
	using System.Net;
	using System.IO;
	using System.Web.Configuration;
	namespace Webftp
	{
	 public sealed class FtpClientService
	 {
	 #region Internal Members
	 private NetworkCredential certificate;
	 #endregion
	 /// <summary>
	 /// 构造函数，提供初始化数据的功能，打开Ftp站点
	 /// </summary>
	 public FtpClientService()
	 {
	 certificate = new NetworkCredential(WebConfigurationManager.AppSettings["FtpUserName"], WebConfigurationManager.AppSettings["FtpPassword"]);
	 }
	 /// <summary>
	 /// 创建FTP请求
	 /// </summary>
	 /// <param name="uri">ftp://myserver/upload.txt</param>
	 /// <param name="method">Upload/Download</param>
	 /// <returns></returns>
	 private FtpWebRequest CreateFtpWebRequest(Uri uri, string method)
	 {
	 FtpWebRequest ftpClientRequest = (FtpWebRequest)WebRequest.Create(uri);
	 ftpClientRequest.Proxy = null;
	 ftpClientRequest.Credentials = certificate;
	 ftpClientRequest.KeepAlive = true;
	 ftpClientRequest.UseBinary = true;
	 ftpClientRequest.UsePassive = true;
	 ftpClientRequest.Method = method;
	 ftpClientRequest.UsePassive = true;
	 //ftpClientRequest.Timeout = -1;
	 return ftpClientRequest;
	 }
	 #region 支持断点续传
	 public bool UploadFile(string sourceFile, Uri destinationPath, int offSet, string ftpMethod)
	 {
	 try
	 {
	 FileInfo file = new FileInfo(sourceFile);
	 Uri uri = new Uri(destinationPath.AbsoluteUri + "/" + file.Name);
	 FtpWebRequest request = CreateFtpWebRequest(uri, ftpMethod);
	 request.ContentOffset = offSet;
	 Stream requestStream = request.GetRequestStream();//需要获取文件的流
	 FileStream fileStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read);//创建存储文件的流
	 int sourceLength = (int)fileStream.Length;
	 offSet = CopyDataToDestination(fileStream, requestStream, offSet);
	 WebResponse response = request.GetResponse();
	 response.Close();
	 if (offSet != 0)
	 {
	 UploadFile(sourceFile, destinationPath, offSet, WebRequestMethods.Ftp.AppendFile);
	 }
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 return true;
	 }
	 private int CopyDataToDestination(Stream sourceStream, Stream destinationStream, int offSet)
	 {
	 try
	 {
	 int sourceLength = (int)sourceStream.Length;
	 int length = sourceLength - offSet;
	 byte[] buffer = new byte[length + offSet];
	 int bytesRead = sourceStream.Read(buffer, offSet, length);
	 while (bytesRead != 0)
	 {
	 destinationStream.Write(buffer, 0, bytesRead);
	 bytesRead = sourceStream.Read(buffer, 0, length);
	 length = length - bytesRead;
	 offSet = (bytesRead == 0) ? 0 : (sourceLength - length);//(length - bytesRead);
	 }
	 }
	 catch (Exception ex)
	 {
	 string error = ex.ToString();
	 return offSet;
	 }
	 finally
	 {
	 destinationStream.Close();
	 sourceStream.Close();
	 }
	 return offSet;
	 }
	 #endregion
	 //删除文件
	 public bool DeleteFileName(string deletefile, Uri destinationPath)
	 {
	 try
	 {
	 FileInfo file = new FileInfo(deletefile);
	 Uri uri = new Uri(destinationPath.AbsoluteUri + "/" + file.Name);
	 FtpWebRequest reqFTP = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DeleteFile);
	 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
	 response.Close();
	 return true;
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 }
	 //创建目录
	 public bool MakeDir(string dirName, Uri destinationPath)
	 {
	 FtpWebResponse response = null;
	 try
	 {
	 FileInfo file = new FileInfo(dirName);
	 Uri uri = new Uri(destinationPath.AbsoluteUri + "/" + file.Name);
	 FtpWebRequest reqFTP = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.MakeDirectory);
	 response = (FtpWebResponse)reqFTP.GetResponse();
	 response.Close();
	 return true;
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 }
	 //删除目录
	 public bool DeleteDir(string dirName, Uri destinationPath)
	 {
	 FtpWebResponse response = null;
	 try
	 {
	 FileInfo file = new FileInfo(dirName);
	 Uri uri = new Uri(destinationPath.AbsoluteUri + "/" + file.Name);
	 FtpWebRequest reqFTP = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.RemoveDirectory);
	 response = (FtpWebResponse)reqFTP.GetResponse();
	 response.Close();
	 return true;
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 }
	 //文件改名
	 public bool Rename(string currentFilename, string newFilename, Uri destinationPath)
	 {
	 try
	 {
	 FileInfo fileInf = new FileInfo(currentFilename);
	 Uri uri = new Uri(destinationPath.AbsoluteUri + "/" + fileInf.Name);
	 FtpWebRequest reqFTP = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.Rename);
	 reqFTP.RenameTo = newFilename;
	 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
	 response.Close();
	 return true;
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 }
	 //获得文件
	 public bool Download(string filePath, string fileName, Uri destinationPath)////上面的代码实现了从ftp服务器下载文件的功能
	 {
	 try
	 {
	 String onlyFileName = Path.GetFileName(fileName);
	 string newFileName = filePath + "\\" + onlyFileName;
	 if (File.Exists(newFileName))
	 {
	 return false;
	 }
	 Uri uri = new Uri(destinationPath.AbsoluteUri+onlyFileName );
	 FtpWebRequest reqFTP = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DownloadFile);
	 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();
	 return true;
	 }
	 catch (Exception ex)
	 {
	 return false;
	 }
	 }

	 }
	}
	调用方法
	 private FtpClientService ftpClient;
	ftpClient = new FtpClientService();
	 string soucepath = Server.MapPath("zippath") + "\\99.zip";
	 //ftpClient.UploadFile(soucepath, new Uri("ftp://ip/a/"), 0, WebRequestMethods.Ftp.UploadFile);
	 string deltefile = "114.zip";
	 //ftpClient.DeleteFileName(deltefile ,new Uri("ftp://ip/a"));
	 string dirname = "992";
	 //ftpClient.MakeDir(dirname, new Uri("ftp://ip/a"));
	 //ftpClient.DeleteDir (dirname, new Uri("ftp://ip/a"));
	 // ftpClient.Rename(deltefile, "00.zip", new Uri("ftp://ip/a"));
	 ftpClient.Download("d:", "00.zip", new Uri("ftp://ip/a/"));
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