namespace Test.FTP{    public class MyFtp    {        private bool _isKeepAlive;        private string _password;        private string _serverIp;        private string _userId;        private int bufferSize;        private FtpWebRequest ftpRequest;        private FtpWebResponse ftpResponse;        private Stream ftpStream;        public MyFtp(string ftpServerIp, string ftpUserId, string ftpPassWord)        {            this.ftpRequest = null;            this.ftpResponse = null;            this.ftpStream = null;            this.bufferSize = 0x800;            this._serverIp = ftpServerIp;            this._password = ftpPassWord;            this._userId = ftpUserId;            this._isKeepAlive = false;        }        public MyFtp(string ftpServerIp, string ftpUserId, string ftpPassWord, bool isKeepAlive)        {            this.ftpRequest = null;            this.ftpResponse = null;            this.ftpStream = null;            this.bufferSize = 0x800;            this._serverIp = ftpServerIp;            this._password = ftpPassWord;            this._userId = ftpUserId;            this._isKeepAlive = isKeepAlive;        }        private void Connect()        {            this.ftpRequest = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + this._serverIp));            this.ftpRequest.UseBinary = true;            this.ftpRequest.UsePassive = true;            this.ftpRequest.KeepAlive = _isKeepAlive;            this.ftpRequest.Credentials = new NetworkCredential(this._userId, this._password);        }        private void Connect(string path)        {            this.ftpRequest = (FtpWebRequest)WebRequest.Create(new Uri(path));            this.ftpRequest.UseBinary = true;            this.ftpRequest.UsePassive = true;            this.ftpRequest.KeepAlive = _isKeepAlive;            this.ftpRequest.Credentials = new NetworkCredential(this._userId, this._password);        }        /// <summary>        /// 创建目录        /// </summary>        /// <param name="dirName"></param>        /// <returns></returns>        public bool CreateDirectory(string dirName)        {            try            {                this.Connect("ftp://" + this._serverIp + "/" + dirName);                this.ftpRequest.Method = WebRequestMethods.Ftp.MakeDirectory;                this.ftpResponse = (FtpWebResponse)this.ftpRequest.GetResponse();                this.ftpResponse.Close();                return true;            }            catch (Exception)            {                return false;            }        }        /// <summary>        /// 删除文件        /// </summary>        /// <param name="deleteFile"></param>        /// <returns></returns>        public bool Delete(string deleteFile)        {            try            {                this.Connect("ftp://" + this._serverIp + "/" + deleteFile);                this.ftpRequest.Method = WebRequestMethods.Ftp.DeleteFile;                this.ftpResponse = (FtpWebResponse)this.ftpRequest.GetResponse();                this.ftpResponse.Close();                return true;            }            catch (Exception)            {                return false;            }        }        /// <summary>        /// 删除目录        /// </summary>        /// <param name="dirName"></param>        /// <returns></returns>        public bool DeleteDirectory(string dirName)        {            try            {                this.Connect("ftp://" + this._serverIp + "/" + dirName);                this.ftpRequest.Method = WebRequestMethods.Ftp.RemoveDirectory;                this.ftpResponse = (FtpWebResponse)this.ftpRequest.GetResponse();                this.ftpResponse.Close();                return true;            }            catch (Exception)            {                return false;            }        }        /// <summary>        /// 下载文件        /// </summary>        /// <param name="remoteFile"></param>        /// <param name="LocalFile"></param>        /// <returns></returns>        public bool DownLoad(string remoteFile, string LocalFile)        {            bool isSuccess;            try            {                this.DownLoadContent(remoteFile, LocalFile);                isSuccess = true;            }            catch (Exception)            {                try                {                    this.DownLoadContent(remoteFile, LocalFile);                    isSuccess = true;                }                catch (Exception)                {                    isSuccess = false;                }            }            return isSuccess;        }        /// <summary>        /// 上传文件        /// </summary>        /// <param name="remoteFile"></param>        /// <param name="LocalFile"></param>        /// <returns></returns>        public bool UpLoad(string remoteFile, string LocalFile)        {            bool isSuccess;            try            {                this.UploadContent(remoteFile, LocalFile);                isSuccess = true;            }            catch (Exception)            {                try                {                    this.UploadContent(remoteFile, LocalFile);                    isSuccess = true;                }                catch (Exception)                {                    isSuccess = false;                }            }            return isSuccess;        }        public string[] GetSimpleFileList(string remoteFile)        {            try            {                this.Connect("ftp://" + this._serverIp + "/" + remoteFile);                StringBuilder sb = new StringBuilder();                this.ftpRequest.Method = WebRequestMethods.Ftp.ListDirectory;                this.ftpResponse = (FtpWebResponse)this.ftpRequest.GetResponse();                this.ftpStream = this.ftpResponse.GetResponseStream();                StreamReader ftpReader = new StreamReader(ftpStream);                try                {                    while (ftpReader.Peek() != -1)                    {                        sb.Append(ftpReader.ReadLine());                        sb.Append("|");                    }                }                catch (Exception ex)                {                    Console.Write(ex.ToString());                }                ftpReader.Close();                this.ftpStream.Close();                this.ftpResponse.Close();                return sb.ToString().Split(new char[] { ‘|‘ });            }            catch (Exception EX)            {                Console.WriteLine(EX.ToString());                return null;            }        }        private void DownLoadContent(string remoteFile, string localFile)        {            this.Connect("ftp://" + this._serverIp + "/" + remoteFile);            this.ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;            using (this.ftpResponse = (FtpWebResponse)this.ftpRequest.GetResponse())            {                using (this.ftpStream = this.ftpResponse.GetResponseStream())                {                    this.ftpStream.ReadTimeout = 0x1d4c0;                    using (FileStream localStream = new FileStream(localFile, FileMode.Create))                    {                        byte[] buffer = new byte[this.bufferSize];                        for (int bytesRead = this.ftpStream.Read(buffer, 0, this.bufferSize); bytesRead > 0; bytesRead = this.ftpStream.Read(buffer, 0, this.bufferSize))                        {                            localStream.Write(buffer, 0, bytesRead);                        }                    }                }            }        }        private void UploadContent(string remoteFile, string localFile)        {            FileInfo fileInfo = new FileInfo(localFile);            this.Connect("ftp://" + this._serverIp + "/" + remoteFile);            this.ftpRequest.Method = WebRequestMethods.Ftp.UploadFile;            this.ftpRequest.ContentLength = fileInfo.Length;            using (FileStream stream = fileInfo.OpenRead())            {                byte[] byteBuffer = new byte[this.bufferSize];                int contentLen = 0;                using (this.ftpStream = this.ftpRequest.GetRequestStream())                {                    for (contentLen = stream.Read(byteBuffer, 0, this.bufferSize); contentLen != 0; contentLen = stream.Read(byteBuffer, 0, bufferSize))                    {                        this.ftpStream.Write(byteBuffer, 0, contentLen);                    }                }            }        }        /// <summary>        /// 重命名文件        /// </summary>        /// <param name="currentFileNameAndPath"></param>        /// <param name="newFileName"></param>        /// <returns></returns>        public bool Rename(string currentFileNameAndPath, string newFileName)        {            try            {                this.Connect("ftp://" + this._serverIp + "/" + currentFileNameAndPath);                this.ftpRequest.Method = WebRequestMethods.Ftp.Rename;                this.ftpRequest.RenameTo = "/" + newFileName;                ftpResponse = (FtpWebResponse)ftpRequest.GetResponse();                this.ftpResponse.Close();                return true;            }            catch (Exception ex)            {                Console.WriteLine(ex.ToString());                return false;            }        }    }}