FTP 文件上传整理

FTP 文件上传   忘记原文链接了，是国外的一个人写的。

上图，上代码！

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上传方法：        /// <summary>        /// Method to upload the specified file to the specified FTP Server        /// </summary>        /// <param name="filename">file full name to be uploaded</param>        private void Upload(string filename)        {            FileInfo fileInf = new FileInfo(filename);            string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;            FtpWebRequest reqFTP;            // Create FtpWebRequest object from the Uri provided            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + fileInf.Name));            // Provide the WebPermission Credintials            reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);            // By default KeepAlive is true, where the control connection is not closed            // after a command is executed.            reqFTP.KeepAlive = false;            // Specify the command to be executed.            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;            // Specify the data transfer type.            reqFTP.UseBinary = true;            // Notify the server about the size of the uploaded file            reqFTP.ContentLength = fileInf.Length;            // The buffer size is set to 2kb            int buffLength = 2048;            byte[] buff = new byte[buffLength];            int contentLen;            // Opens a file stream (System.IO.FileStream) to read the file to be uploaded            FileStream fs = fileInf.OpenRead();            try            {                // Stream to which the file to be upload is written                Stream strm = reqFTP.GetRequestStream();                // Read from the file stream 2kb at a time                contentLen = fs.Read(buff, 0, buffLength);                // Till Stream content ends                while (contentLen != 0)                {                    // Write Content from the file stream to the FTP Upload Stream                    strm.Write(buff, 0, contentLen);                    contentLen = fs.Read(buff, 0, buffLength);                }                // Close the file stream and the Request Stream                strm.Close();                fs.Close();            }            catch (Exception ex)            {                MessageBox.Show(ex.Message, "Upload Error");            }        }

        #region 判断文件夹是否存在        /// <summary>        /// 判断文件夹是否存在        /// </summary>        /// <param name="ftpFilePath"></param>        /// <returns></returns>        private bool CheckDireExist(string ftpParFilePath, string ftpSonFilePath)        {            FtpWebRequest ftpWebRequest = null; WebResponse webResponse = null;            StreamReader reader = null;            try            {                string uri = "ftp://" + ftpServerIP + "/" + ftpParFilePath;                ftpWebRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));                ftpWebRequest.Credentials = new NetworkCredential(ftpUserID, ftpPassword);                ftpWebRequest.Method = WebRequestMethods.Ftp.ListDirectory;                ftpWebRequest.UsePassive = false;  //选择主动还是被动模式 ,                ftpWebRequest.KeepAlive = false;                webResponse = ftpWebRequest.GetResponse();                reader = new StreamReader(webResponse.GetResponseStream(), Encoding.Default);                string line = reader.ReadLine();                while (line != null)                {                    if (line.ToLower() == ftpSonFilePath.ToLower())                        return true;                    line = reader.ReadLine();                }            }            catch (Exception e)            {                throw e;            }            finally            {                if (reader != null) reader.Close();                if (webResponse != null) webResponse.Close();            } return false;        }        #endregion        #region 创建目录        /// <summary>        ///  文件路径如：/a/a.1/a.2, 如果a.1 a.2 不存在，也将创建        /// </summary>        /// <param name="strDirePath"></param>        public void MakeMultiFTPDire(string strDirePath)        {            if (string.IsNullOrEmpty(strDirePath)) return;            #region 修改目录字符串            //如果第一个字符不是斜杠，则添加斜杠            if (strDirePath.IndexOf('/') != 0)            {                strDirePath = "/" + strDirePath;            }            //去除最后一个斜杠            if (strDirePath.LastIndexOf('/') == strDirePath.Length - 1)            {                strDirePath = strDirePath.Substring(0, strDirePath.Length - 1);            }            #endregion            #region 创建目录            string[] strArray = strDirePath.Split('/');            string strParPath = "";   //父节点            string strSonPath = "/";   //子节点            for (int i = 0; i < strArray.Length - 1; i++)            {                strParPath += strArray[i] + "/";                strSonPath += strArray[i + 1] + "/";                if (!CheckDireExist(strParPath, strArray[i + 1])) MakeDir(strSonPath);            }            #endregion        }        /// <summary>        /// 在根目录创建目录，        /// </summary>        /// <param name="dirName"></param>        private void MakeDir(string dirName)        {            FtpWebRequest reqFTP;            try            {                // dirName = name of the directory to create.                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + dirName.TrimStart('/')));                reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;                reqFTP.UseBinary = true;                reqFTP.UsePassive = false;  //选择主动还是被动模式 ,                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();                Stream ftpStream = response.GetResponseStream();                ftpStream.Close();                response.Close();            }            catch (Exception ex)            {                MessageBox.Show("创建目录" + dirName + "失败," + ex.Message);            }        }        #endregion