C#開辟教程之ftp操作辦法整頓。本站提示廣大學習愛好者:(C#開辟教程之ftp操作辦法整頓)文章只能為提供參考,不一定能成為您想要的結果。以下是C#開辟教程之ftp操作辦法整頓正文
1.比來項目開辟觸及到ftp操作。發明FtpWebRequest類有些操作很費事,
例如創立目次只能創立一級目次,多級就掉敗。刪除目次只能刪除最初一級的空目次。異樣下載也是。
故寫下贊助類便利應用。
2.挪用辦法展現,
var ftp = new FtpHelper("111.111.111.111", "xxxxxxx", "xxxxxx");//初始化ftp,創立ftp對象 ftp.uploadFile("F:\\wms.zip","aaa//bbb");//參數1當地文件,參數2:ftp的目次 ftp.delDirAll("aaa");//參數 要刪除的目次的 途徑 ftp.downloadAllFile("aaa","F:\\myfile");//參數1:要下載的目次,參數2,保留到當地的目次
3.FtpHelper 代碼。後續再彌補解釋
1.異常辦法拜托,經由過程Lamda拜托同一處置異常,便利改寫。加了個拜托便利掌握異常輸入
2.遞歸查找一切目次存入list,然後依據 level排序,從最末級開端遍歷刪除
3.ftp的目次列表比擬怪,臨時用截取字符串的獲得 目次或文件
/// <summary> /// ftp贊助類 /// </summary> public class FtpHelper { private string ftpHostIP { get; set; } private string username { get; set; } private string password { get; set; } private string ftpURI { get { return $@"ftp://{ftpHostIP}/"; } } /// <summary> /// 初始化ftp參數 /// </summary> /// <param name="ftpHostIP">ftp主機IP</param> /// <param name="username">ftp賬戶</param> /// <param name="password">ftp暗碼</param> public FtpHelper(string ftpHostIP, string username, string password) { this.ftpHostIP = ftpHostIP; this.username = username; this.password = password; } /// <summary> /// 異常辦法拜托,經由過程Lamda拜托同一處置異常,便利改寫 /// </summary> /// <param name="method">以後履行的辦法</param> /// <param name="action"></param> /// <returns></returns> private bool MethodInvoke(string method, Action action) { if (action != null) { try { action(); //Logger.Write2File($@"FtpHelper.{method}:履行勝利"); FluentConsole.Red.Line($@"FtpHelper.{method}:履行勝利"); return true; } catch (Exception ex) { FluentConsole.Red.Line($@"FtpHelper.{method}:履行掉敗", ex.ToString()); // Logger.Write2File(action.GetType().Name, ex.ToString()); return false; } } else { return false; } } /// <summary> /// 異常辦法拜托,經由過程Lamda拜托同一處置異常,便利改寫 /// </summary> /// </summary> /// <typeparam name="T"></typeparam> /// <param name="method"></param> /// <param name="func"></param> /// <returns></returns> private T MethodInvoke<T>(string method, Func<T> func) { if (func != null) { try { FluentConsole.Red.Line($@"FtpHelper.{method}:履行勝利"); return func(); //Logger.Write2File($@"FtpHelper.{method}:履行勝利"); } catch (Exception ex) { FluentConsole.Red.Line($@"FtpHelper.{method}:履行掉敗:{ex}"); // Logger.Write2File($@"FtpHelper.{method}:履行掉敗", ex.ToString()); return default(T); } } else { return default(T); } } private FtpWebRequest GetRequest(string URI) { //依據辦事器信息FtpWebRequest創立類的對象 FtpWebRequest result = (FtpWebRequest)WebRequest.Create(URI); result.Credentials = new NetworkCredential(username, password); result.KeepAlive = false; result.UsePassive = false; result.UseBinary = true; return result; } /// <summary> 上傳文件</summary> /// <param name="filePath">須要上傳的文件</param> /// <param name="targetDir">目的途徑</param> public bool uploadFile(string filePath, string dirName = "") { FileInfo fileInfo = new FileInfo(filePath); if (dirName != "") makeDir(dirName); string uri = Path.Combine(ftpURI, dirName, fileInfo.Name); return MethodInvoke($@"uploadFile({filePath},{dirName})", () => { FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.UploadFile; ftp.ContentLength = fileInfo.Length; int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; using (FileStream fs = fileInfo.OpenRead()) { using (Stream strm = ftp.GetRequestStream()) { contentLen = fs.Read(buff, 0, buffLength); while (contentLen != 0) { strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } strm.Close(); } fs.Close(); } }); } /// <summary> /// 檢討目次能否存在 /// </summary> /// <param name="dirName"></param> /// <param name="currentDir"></param> /// <returns></returns> public bool checkDir(string dirName, string currentDir = "") { string uri = Path.Combine(ftpURI, currentDir); return MethodInvoke($@"checkDir({dirName}{currentDir})", () => { FtpWebRequest ftp = GetRequest(uri); ftp.UseBinary = true; ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails; Stream stream = ftp.GetResponse().GetResponseStream(); using (StreamReader sr = new StreamReader(stream)) { string line = sr.ReadLine(); while (!string.IsNullOrEmpty(line)) { string dir = string.Empty; if (line.IndexOf("<DIR>") > -1) { if (line.Substring(line.IndexOf("<DIR>") + 5).Trim() == dirName) return true; } line = sr.ReadLine(); } sr.Close(); } stream.Close(); return false; }); } /// <summary> /// 獲得以後目次下的目次及文件 /// </summary> /// param name="ftpfileList"></param> /// <param name="dirName"></param> /// <returns></returns> public List<Ftpfile> getFtpFile(string dirName) { var ftpfileList = new List<Ftpfile>(); string uri = Path.Combine(ftpURI, dirName); return MethodInvoke($@"getFile({dirName})", () => { var a = new List<List<string>>(); FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails; Stream stream = ftp.GetResponse().GetResponseStream(); using (StreamReader sr = new StreamReader(stream)) { string line = sr.ReadLine(); while (!string.IsNullOrEmpty(line)) { ftpfileList.Add(new Ftpfile { isDir = line.IndexOf("<DIR>") > -1, name = line.Substring(39).Trim(),path= Path.Combine(dirName, line.Substring(39).Trim()) }); line = sr.ReadLine(); } sr.Close(); } return ftpfileList; }); } /// <summary> /// 獲得目次下的一切目次及文件包含其子目次和子文件 /// </summary> /// param name="ftpfileList"></param> /// <param name="dirName"></param> /// <returns></returns> public List<Ftpfile> getAllFtpFile(List<Ftpfile> ftpfileList, string dirName, int level = 0) { var flist = new List<Ftpfile>(); string uri = Path.Combine(ftpURI, dirName); return MethodInvoke($@"getFile({dirName})", () => { var a = new List<List<string>>(); FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails; Stream stream = ftp.GetResponse().GetResponseStream(); using (StreamReader sr = new StreamReader(stream)) { string line = sr.ReadLine(); while (!string.IsNullOrEmpty(line)) { flist.Add(new Ftpfile { isDir = line.IndexOf("<DIR>") > -1, name = line.Substring(39).Trim(), level = level, path= Path.Combine(dirName ,line.Substring(39).Trim()) }); ftpfileList.Add(new Ftpfile { isDir = line.IndexOf("<DIR>") > -1, name = line.Substring(39).Trim(), level = level, path = Path.Combine(dirName, line.Substring(39).Trim()) }); line = sr.ReadLine(); } sr.Close(); } var nflist = flist.Where(x => x.isDir).ToList(); if (nflist.Count == 0) return ftpfileList; else return getAllFtpFile(ftpfileList, Path.Combine(dirName, nflist.First().name), level + 1); }); } /// </summary> /// 在ftp辦事器上創立指定目次,父目次不存在則創立 /// </summary> /// <param name="dirName">創立的目次稱號</param> public bool makeDir(string dirName) { var dirs = dirName.Split('\\').ToList();//針對多級目次朋分 string currentDir = string.Empty; return MethodInvoke($@"makeDir({dirName})", () => { foreach (var dir in dirs) { if (!checkDir(dir, currentDir))//檢討目次不存在則創立 { currentDir = Path.Combine(currentDir, dir); string uri = Path.Combine(ftpURI, currentDir); FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.MakeDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } else { currentDir = Path.Combine(currentDir, dir); } } }); } /// <summary> /// 刪除單個文件 /// </summary> /// <param name="filePath"></param> public bool delFile(string filePath) { string uri = Path.Combine(ftpURI, filePath); return MethodInvoke($@"deleteFile({filePath})", () => { FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.DeleteFile; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); }); } /// <summary> /// 刪除最末及空目次 /// </summary> /// <param name="dirName"></param> private bool delDir(string dirName) { string uri = Path.Combine(ftpURI, dirName); return MethodInvoke($@"delDir({dirName})", () => { FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.RemoveDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); }); } /// <summary> 刪除目次或許其目次下一切的文件 </summary> /// <param name="dirName">目次稱號</param> /// <param name="ifDelSub">能否刪除目次下一切的文件</param> public void delDirAll(string dirName) { var dlist = getAllFtpFile(new List<Ftpfile>(),dirName); dlist.OrderByDescending(x => x.level);//降序分列,先刪除末及文件或空目次 string uri = Path.Combine(ftpURI, dirName); MethodInvoke($@"delDirAll({dirName})", () => { foreach (var item in dlist) { if (item.isDir)//斷定是目次挪用目次的刪除辦法 delDir(item.path); else delFile(item.path); } }); } /// <summary>文件重定名 </summary> /// <param name="currentFilename">以後稱號</param> /// <param name="newFilename">重定名稱號</param> /// <param name="currentFilename">地點的目次</param> public bool Rename(string currentFilename, string newFilename, string dirName = "") { string uri = Path.Combine(ftpURI, dirName, currentFilename); return MethodInvoke($@"Rename({currentFilename},{newFilename},{dirName})", () => { FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.Rename; ftp.RenameTo = newFilename; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); }); } /// <summary> /// 下載單個文件 /// </summary> /// <param name="ftpFilePath">從ftp要下載的文件途徑</param> /// <param name="localDir">下載至當地途徑</param> /// <param name="filename">文件名</param> public bool downloadFile(string ftpFilePath, string saveDir, string filename) { string tmpname = Guid.NewGuid().ToString(); string uri = Path.Combine(ftpURI, ftpFilePath); return MethodInvoke($@"downloadFile({ftpFilePath},{saveDir},{filename})", () => { if (!Directory.Exists(saveDir)) Directory.CreateDirectory(saveDir); FtpWebRequest ftp = GetRequest(uri); ftp.Method = WebRequestMethods.Ftp.DownloadFile; using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse()) { using (Stream responseStream = response.GetResponseStream()) { using (FileStream fs = new FileStream(Path.Combine(saveDir, filename), FileMode.CreateNew)) { byte[] buffer = new byte[2048]; int read = 0; do { read = responseStream.Read(buffer, 0, buffer.Length); fs.Write(buffer, 0, read); } while (!(read == 0)); responseStream.Close(); fs.Flush(); fs.Close(); } responseStream.Close(); } response.Close(); } }); } /// <summary> /// 從FTP下載全部文件夾 /// </summary> /// <param name="dirName">FTP文件夾途徑</param> /// <param name="saveDir">保留的當地文件夾途徑</param> public void downloadAllFile(string dirName, string saveDir) { MethodInvoke($@"downloadAllFile({dirName},{saveDir})", () => { List<Ftpfile> files = getFtpFile(dirName); if (!Directory.Exists(saveDir)) { Directory.CreateDirectory(saveDir); } foreach (var f in files) { if (f.isDir) //文件夾,遞歸查詢 { downloadAllFile(Path.Combine(dirName + f.name), Path.Combine(saveDir + f.name)); } else //文件,直接下載 { downloadFile(Path.Combine(dirName + f.name), saveDir, f.name); } } }); } } public class Ftpfile { public int level { get; set; } = 0; public bool isDir { get; set; } public string name { get; set; } public string path { get; set; } = ""; }
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