c# FTP操作类

我会带着你远行 2021-12-05 06:13 297阅读 0赞

C#语言: Codee#2416
    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.IO;
    using System.Net;
    using System.Windows.Forms;
    using System.Globalization;
    
    namespace FtpLib
    {
    
        public class FtpWeb
        {
            string ftpServerIP;
            string ftpRemotePath;
            string ftpUserID;
            string ftpPassword;
            string ftpURI;
    
            /// <summary>
            /// 连接FTP
            /// </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 FtpWeb(string FtpServerIP, string FtpRemotePath, string FtpUserID, string FtpPassword)
            {
                ftpServerIP = FtpServerIP;
                ftpRemotePath = FtpRemotePath;
                ftpUserID = FtpUserID;
                ftpPassword = FtpPassword;
                ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/";
            }
    
            /// <summary>
            /// 上传
            /// </summary>
            /// <param name="filename"></param>
            public void Upload(string filename)
            {
                FileInfo fileInf = new FileInfo(filename);
                string uri = ftpURI + fileInf.Name;
                FtpWebRequest reqFTP;
    
                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                reqFTP.KeepAlive = false;
                reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
                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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "Upload Error --> " + ex.Message);
                }
            }
    
            /// <summary>
            /// 下载
            /// </summary>
            /// <param name="filePath"></param>
            /// <param name="fileName"></param>
            public void Download(string filePath, string fileName)
            {
                FtpWebRequest reqFTP;
                try
                {
                    FileStream outputStream = new FileStream(filePath + "\\" + fileName, FileMode.Create);
    
                    reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + fileName));
                    reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
                    reqFTP.UseBinary = true;
                    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);
                    while (readCount > 0)
                    {
                        outputStream.Write(buffer, 0, readCount);
                        readCount = ftpStream.Read(buffer, 0, bufferSize);
                    }
    
                    ftpStream.Close();
                    outputStream.Close();
                    response.Close();
                }
                catch (Exception ex)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "Download Error --> " + ex.Message);
                }
            }
    
    
            /// <summary>
            /// 删除文件
            /// </summary>
            /// <param name="fileName"></param>
            public void Delete(string fileName)
            {
                try
                {
                    string uri = ftpURI + fileName;
                    FtpWebRequest reqFTP;
                    reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
    
                    reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                    reqFTP.KeepAlive = false;
                    reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
    
                    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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "Delete Error --> " + ex.Message + "  文件名:" + fileName);
                }
            }
    
            /// <summary>
            /// 删除文件夹
            /// </summary>
            /// <param name="folderName"></param>
            public void RemoveDirectory(string folderName)
            {
                try
                {
                    string uri = ftpURI + folderName;
                    FtpWebRequest reqFTP;
                    reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
    
                    reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                    reqFTP.KeepAlive = false;
                    reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
    
                    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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "Delete Error --> " + ex.Message + "  文件名:" + folderName);
                }
            }
    
            /// <summary>
            /// 获取当前目录下明细(包含文件和文件夹)
            /// </summary>
            /// <returns></returns>
            public string[] GetFilesDetailList()
            {
                string[] downloadFiles;
                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(), Encoding.Default);
    
                    //while (reader.Read() > 0)
                    //{
    
                    //}
                    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)
                {
                    downloadFiles = null;
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "GetFilesDetailList Error --> " + ex.Message);
                    return downloadFiles;
                }
            }
    
            /// <summary>
            /// 获取当前目录下文件列表(仅文件)
            /// </summary>
            /// <returns></returns>
            public string[] GetFileList(string mask)
            {
                string[] downloadFiles;
                StringBuilder result = new StringBuilder();
                FtpWebRequest reqFTP;
                try
                {
                    reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI));
                    reqFTP.UseBinary = true;
                    reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                    reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
                    WebResponse response = reqFTP.GetResponse();
                    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
    
                    string line = reader.ReadLine();
                    while (line != null)
                    {
                        if (mask.Trim() != string.Empty && mask.Trim() != "*.*")
                        {
    
                            string mask_ = mask.Substring(0, mask.IndexOf("*"));
                            if (line.Substring(0, mask_.Length) == mask_)
                            {
                                result.Append(line);
                                result.Append("\n");
                            }
                        }
                        else
                        {
                            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)
                {
                    downloadFiles = null;
                    if (ex.Message.Trim() != "远程服务器返回错误: (550) 文件不可用(例如，未找到文件，无法访问文件)。")
                    {
                        Insert_Standard_ErrorLog.Insert("FtpWeb", "GetFileList Error --> " + ex.Message.ToString());
                    }
                    return downloadFiles;
                }
            }
    
            /// <summary>
            /// 获取当前目录下所有的文件夹列表(仅文件夹)
            /// </summary>
            /// <returns></returns>
            public string[] GetDirectoryList()
            {
                string[] drectory = GetFilesDetailList();
                string m = string.Empty;
                foreach (string str in drectory)
                {
                    int dirPos = str.IndexOf("<DIR>");
                    if (dirPos>0)
                    {
                        /*判断 Windows 风格*/
                        m += str.Substring(dirPos + 5).Trim() + "\n";
                    }
                    else if (str.Trim().Substring(0, 1).ToUpper() == "D")
                    {
                        /*判断 Unix 风格*/
                        string dir = str.Substring(54).Trim();
                        if (dir != "." && dir != "..")
                        {
                            m += dir + "\n"; 
                        }
                    }
                }
    
                char[] n = new char[] { '\n' };
                return m.Split(n);
            }
    
            /// <summary>
            /// 判断当前目录下指定的子目录是否存在
            /// </summary>
            /// <param name="RemoteDirectoryName">指定的目录名</param>
            public bool DirectoryExist(string RemoteDirectoryName)
            {
                string[] dirList = GetDirectoryList();
                foreach (string str in dirList)
                {
                    if (str.Trim() == RemoteDirectoryName.Trim())
                    {
                        return true;
                    }
                }
                return false;
            }
    
            /// <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>
            /// <param name="dirName"></param>
            public void MakeDir(string dirName)
            {
                FtpWebRequest reqFTP;
                try
                {
                    // dirName = name of the directory to create.
                    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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "MakeDir Error --> " + ex.Message);
                }
            }
    
            /// <summary>
            /// 获取指定文件大小
            /// </summary>
            /// <param name="filename"></param>
            /// <returns></returns>
            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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "GetFileSize Error --> " + ex.Message);
                }
                return fileSize;
            }
    
            /// <summary>
            /// 改名
            /// </summary>
            /// <param name="currentFilename"></param>
            /// <param name="newFilename"></param>
            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)
                {
                    Insert_Standard_ErrorLog.Insert("FtpWeb", "ReName Error --> " + ex.Message);
                }
            }
    
            /// <summary>
            /// 移动文件
            /// </summary>
            /// <param name="currentFilename"></param>
            /// <param name="newFilename"></param>
            public void MovieFile(string currentFilename, string newDirectory)
            {
                ReName(currentFilename, newDirectory);
            }
    
            /// <summary>
            /// 切换当前目录
            /// </summary>
            /// <param name="DirectoryName"></param>
            /// <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 + "/";
            }
    
            /// <summary>
            /// 删除订单目录
            /// </summary>
            /// <param name="ftpServerIP">FTP 主机地址</param>
            /// <param name="folderToDelete">FTP 用户名</param>
            /// <param name="ftpUserID">FTP 用户名</param>
            /// <param name="ftpPassword">FTP 密码</param>
            public static void DeleteOrderDirectory(string ftpServerIP, string folderToDelete, string ftpUserID, string ftpPassword)
            {
                try{
                    if (!string.IsNullOrEmpty(ftpServerIP) && !string.IsNullOrEmpty(folderToDelete) && !string.IsNullOrEmpty(ftpUserID) && !string.IsNullOrEmpty(ftpPassword))
                    {
                        FtpWeb fw = new FtpWeb(ftpServerIP, folderToDelete, ftpUserID, ftpPassword);
                        //进入订单目录
                        fw.GotoDirectory(folderToDelete, true);
                        //获取规格目录
                        string[] folders = fw.GetDirectoryList();
                        foreach (string folder in folders)
                        { 
                            if (!string.IsNullOrEmpty(folder) || folder != "")
                            {
                                //进入订单目录
                                string subFolder = folderToDelete + "/" + folder;
                                fw.GotoDirectory(subFolder, true);
                                //获取文件列表
                                string[] files = fw.GetFileList("*.*");
                                if (files != null)
                                {
                                    //删除文件
                                    foreach (string file in files)
                                    {
                                        fw.Delete(file);
                                    }
                                }
                                //删除冲印规格文件夹
                                fw.GotoDirectory(folderToDelete, true);
                                fw.RemoveDirectory(folder);
                            }
                        }
    
                        //删除订单文件夹
                        string parentFolder = folderToDelete.Remove(folderToDelete.LastIndexOf('/'));
                        string orderFolder = folderToDelete.Substring(folderToDelete.LastIndexOf('/') + 1);
                        fw.GotoDirectory(parentFolder, true);
                        fw.RemoveDirectory(orderFolder);
                    }
                    else
                    {
                        throw new Exception("FTP 及路径不能为空！");
                    }
                }
                catch(Exception ex)
                {
                    throw new Exception("删除订单时发生错误，错误信息为：" + ex.Message);
                }
            }
        }
    
    
        public class Insert_Standard_ErrorLog
        {
            public static void Insert(string x, string y)
            {
    
            }
        }
    
    
    }

转载于:https://www.cnblogs.com/swtseaman/archive/2011/03/29/1998611.html