【文件操作類】史上最完整的文件和目錄操作類 <a target=_blank href="http://bbs.cskin.net/thread-114-1-1.html">http://bbs.cskin.net/thread-114-1-1.html</a> (出處: CSkin論壇) ?一個非常非常完整強大的文件和文件夾操作類，基于System.IO下面的Directory和File擴展出了我們經常要用到的但是系統不自帶的方法例如：<ul class="litype_1" type="1"><li>獲取一個目錄下面的所有文件。</li><li>支持遍歷子目錄、驗證目錄是否為空。</li><li>移動復制文件、批量刪除文件以及對文件的寫入、修改、追加對目錄的清空等多個方法。</li></ul> using System; using System.Text; using System.IO;namespace HelloCsharp.Utilities {/// <summary>/// 文件操作類/// </summary>public static class DirFile{#region 檢測指定目錄是否存在/// <summary>/// 檢測指定目錄是否存在/// </summary>/// <param name="directoryPath">目錄的絕對路徑</param>/// <returns></returns>public static bool IsExistDirectory(string directoryPath){return Directory.Exists(directoryPath);}#endregion#region 檢測指定文件是否存在,如果存在返回true/// <summary>/// 檢測指定文件是否存在,如果存在則返回true。/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static bool IsExistFile(string filePath){return File.Exists(filePath);}#endregion#region 獲取指定目錄中的文件列表/// <summary>/// 獲取指定目錄中所有文件列表/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param> public static string[] GetFileNames(string directoryPath){//如果目錄不存在，則拋出異常if (!IsExistDirectory(directoryPath)){throw new FileNotFoundException();}//獲取文件列表return Directory.GetFiles(directoryPath);}#endregion#region 獲取指定目錄中所有子目錄列表,若要搜索嵌套的子目錄列表,請使用重載方法./// <summary>/// 獲取指定目錄中所有子目錄列表,若要搜索嵌套的子目錄列表,請使用重載方法./// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param> public static string[] GetDirectories(string directoryPath){try{return Directory.GetDirectories(directoryPath);}catch (IOException ex){throw ex;}}#endregion#region 獲取指定目錄及子目錄中所有文件列表/// <summary>/// 獲取指定目錄及子目錄中所有文件列表/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>/// <param name="searchPattern">模式字符串，"*"代表0或N個字符，"?"代表1個字符。/// 范例："Log*.xml"表示搜索所有以Log開頭的Xml文件。</param>/// <param name="isSearchChild">是否搜索子目錄</param>public static string[] GetFileNames(string directoryPath, string searchPattern, bool isSearchChild){//如果目錄不存在，則拋出異常if (!IsExistDirectory(directoryPath)){throw new FileNotFoundException();}try{if (isSearchChild){return Directory.GetFiles(directoryPath, searchPattern, SearchOption.AllDirectories);}else{return Directory.GetFiles(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);}}catch (IOException ex){throw ex;}}#endregion#region 檢測指定目錄是否為空/// <summary>/// 檢測指定目錄是否為空/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param> public static bool IsEmptyDirectory(string directoryPath){try{//判斷是否存在文件string[] fileNames = GetFileNames(directoryPath);if (fileNames.Length > 0){return false;}//判斷是否存在文件夾string[] directoryNames = GetDirectories(directoryPath);if (directoryNames.Length > 0){return false;}return true;}catch{//這里記錄日志//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);return true;}}#endregion#region 檢測指定目錄中是否存在指定的文件/// <summary>/// 檢測指定目錄中是否存在指定的文件,若要搜索子目錄請使用重載方法./// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>/// <param name="searchPattern">模式字符串，"*"代表0或N個字符，"?"代表1個字符。/// 范例："Log*.xml"表示搜索所有以Log開頭的Xml文件。</param> public static bool Contains(string directoryPath, string searchPattern){try{//獲取指定的文件列表string[] fileNames = GetFileNames(directoryPath, searchPattern, false);//判斷指定文件是否存在if (fileNames.Length == 0){return false;}else{return true;}}catch (Exception ex){throw new Exception(ex.Message);//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);}}/// <summary>/// 檢測指定目錄中是否存在指定的文件/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>/// <param name="searchPattern">模式字符串，"*"代表0或N個字符，"?"代表1個字符。/// 范例："Log*.xml"表示搜索所有以Log開頭的Xml文件。</param> /// <param name="isSearchChild">是否搜索子目錄</param>public static bool Contains(string directoryPath, string searchPattern, bool isSearchChild){try{//獲取指定的文件列表string[] fileNames = GetFileNames(directoryPath, searchPattern, true);//判斷指定文件是否存在if (fileNames.Length == 0){return false;}else{return true;}}catch (Exception ex){throw new Exception(ex.Message);//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);}}#endregion#region 創建目錄/// <summary>/// 創建目錄/// </summary>/// <param name="dir">要創建的目錄路徑包括目錄名</param>public static void CreateDir(string dir){if (dir.Length == 0) return;if (!Directory.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir))Directory.CreateDirectory(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir);}#endregion#region 刪除目錄/// <summary>/// 刪除目錄/// </summary>/// <param name="dir">要刪除的目錄路徑和名稱</param>public static void DeleteDir(string dir){if (dir.Length == 0) return;if (Directory.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir))Directory.Delete(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir);}#endregion#region 刪除文件/// <summary>/// 刪除文件/// </summary>/// <param name="file">要刪除的文件路徑和名稱</param>public static void DeleteFile(string file){if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + file))File.Delete(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + file);}#endregion#region 創建文件/// <summary>/// 創建文件/// </summary>/// <param name="dir">帶后綴的文件名</param>/// <param name="pagestr">文件內容</param>public static void CreateFile(string dir, string pagestr){dir = dir.Replace("/", "\\");if (dir.IndexOf("\\") > -1)CreateDir(dir.Substring(0, dir.LastIndexOf("\\")));System.IO.StreamWriter sw = new System.IO.StreamWriter(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir, false, System.Text.Encoding.GetEncoding("GB2312"));sw.Write(pagestr);sw.Close();}#endregion#region 移動文件(剪貼--粘貼)/// <summary>/// 移動文件(剪貼--粘貼)/// </summary>/// <param name="dir1">要移動的文件的路徑及全名(包括后綴)</param>/// <param name="dir2">文件移動到新的位置,并指定新的文件名</param>public static void MoveFile(string dir1, string dir2){dir1 = dir1.Replace("/", "\\");dir2 = dir2.Replace("/", "\\");if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1))File.Move(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1, System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir2);}#endregion#region 復制文件/// <summary>/// 復制文件/// </summary>/// <param name="dir1">要復制的文件的路徑已經全名(包括后綴)</param>/// <param name="dir2">目標位置,并指定新的文件名</param>public static void CopyFile(string dir1, string dir2){dir1 = dir1.Replace("/", "\\");dir2 = dir2.Replace("/", "\\");if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1)){File.Copy(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1, System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir2, true);}}#endregion#region 根據時間得到目錄名 / 格式:yyyyMMdd 或者 HHmmssff/// <summary>/// 根據時間得到目錄名yyyyMMdd/// </summary>/// <returns></returns>public static string GetDateDir(){return DateTime.Now.ToString("yyyyMMdd");}/// <summary>/// 根據時間得到文件名HHmmssff/// </summary>/// <returns></returns>public static string GetDateFile(){return DateTime.Now.ToString("HHmmssff");}#endregion#region 復制文件夾/// <summary>/// 復制文件夾(遞歸)/// </summary>/// <param name="varFromDirectory">源文件夾路徑</param>/// <param name="varToDirectory">目標文件夾路徑</param>public static void CopyFolder(string varFromDirectory, string varToDirectory){Directory.CreateDirectory(varToDirectory);if (!Directory.Exists(varFromDirectory)) return;string[] directories = Directory.GetDirectories(varFromDirectory);if (directories.Length > 0){foreach (string d in directories){CopyFolder(d, varToDirectory + d.Substring(d.LastIndexOf("\\")));}}string[] files = Directory.GetFiles(varFromDirectory);if (files.Length > 0){foreach (string s in files){File.Copy(s, varToDirectory + s.Substring(s.LastIndexOf("\\")), true);}}}#endregion#region 檢查文件,如果文件不存在則創建/// <summary>/// 檢查文件,如果文件不存在則創建 /// </summary>/// <param name="FilePath">路徑,包括文件名</param>public static void ExistsFile(string FilePath){//if(!File.Exists(FilePath)) //File.Create(FilePath); //以上寫法會報錯,詳細解釋請看下文......... if (!File.Exists(FilePath)){FileStream fs = File.Create(FilePath);fs.Close();}}#endregion#region 刪除指定文件夾對應其他文件夾里的文件/// <summary>/// 刪除指定文件夾對應其他文件夾里的文件/// </summary>/// <param name="varFromDirectory">指定文件夾路徑</param>/// <param name="varToDirectory">對應其他文件夾路徑</param>public static void DeleteFolderFiles(string varFromDirectory, string varToDirectory){Directory.CreateDirectory(varToDirectory);if (!Directory.Exists(varFromDirectory)) return;string[] directories = Directory.GetDirectories(varFromDirectory);if (directories.Length > 0){foreach (string d in directories){DeleteFolderFiles(d, varToDirectory + d.Substring(d.LastIndexOf("\\")));}}string[] files = Directory.GetFiles(varFromDirectory);if (files.Length > 0){foreach (string s in files){File.Delete(varToDirectory + s.Substring(s.LastIndexOf("\\")));}}}#endregion#region 從文件的絕對路徑中獲取文件名( 包含擴展名 )/// <summary>/// 從文件的絕對路徑中獲取文件名( 包含擴展名 )/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static string GetFileName(string filePath){//獲取文件的名稱FileInfo fi = new FileInfo(filePath);return fi.Name;}#endregion/// <summary>/// 復制文件參考方法,頁面中引用/// </summary>/// <param name="cDir">新路徑</param>/// <param name="TempId">模板引擎替換編號</param>public static void CopyFiles(string cDir, string TempId){//if (Directory.Exists(Request.PhysicalApplicationPath + "\\Controls"))//{// string TempStr = string.Empty;// StreamWriter sw;// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Default.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Default.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Default.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Column.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Column.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\List.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Content.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Content.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\View.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\MoreDiss.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\MoreDiss.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\DissList.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\ShowDiss.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\ShowDiss.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Diss.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Review.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Review.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Review.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Search.aspx"))// {// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Search.aspx");// TempStr = TempStr.Replace("{$ChannelId$}", TempId);// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Search.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));// sw.Write(TempStr);// sw.Close();// }//}}#region 創建一個目錄/// <summary>/// 創建一個目錄/// </summary>/// <param name="directoryPath">目錄的絕對路徑</param>public static void CreateDirectory(string directoryPath){//如果目錄不存在則創建該目錄if (!IsExistDirectory(directoryPath)){Directory.CreateDirectory(directoryPath);}}#endregion#region 創建一個文件/// <summary>/// 創建一個文件。/// </summary>/// <param name="filePath">文件的絕對路徑</param>public static void CreateFile(string filePath){try{//如果文件不存在則創建該文件if (!IsExistFile(filePath)){//創建一個FileInfo對象FileInfo file = new FileInfo(filePath);//創建文件FileStream fs = file.Create();//關閉文件流fs.Close();}}catch (Exception ex){//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);throw ex;}}/// <summary>/// 創建一個文件,并將字節流寫入文件。/// </summary>/// <param name="filePath">文件的絕對路徑</param>/// <param name="buffer">二進制流數據</param>public static void CreateFile(string filePath, byte[] buffer){try{//如果文件不存在則創建該文件if (!IsExistFile(filePath)){//創建一個FileInfo對象FileInfo file = new FileInfo(filePath);//創建文件FileStream fs = file.Create();//寫入二進制流fs.Write(buffer, 0, buffer.Length);//關閉文件流fs.Close();}}catch (Exception ex){//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);throw ex;}}#endregion#region 獲取文本文件的行數/// <summary>/// 獲取文本文件的行數/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static int GetLineCount(string filePath){//將文本文件的各行讀到一個字符串數組中string[] rows = File.ReadAllLines(filePath);//返回行數return rows.Length;}#endregion#region 獲取一個文件的長度/// <summary>/// 獲取一個文件的長度,單位為Byte/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static int GetFileSize(string filePath){//創建一個文件對象FileInfo fi = new FileInfo(filePath);//獲取文件的大小return (int)fi.Length;}#endregion#region 獲取指定目錄中的子目錄列表/// <summary>/// 獲取指定目錄及子目錄中所有子目錄列表/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>/// <param name="searchPattern">模式字符串，"*"代表0或N個字符，"?"代表1個字符。/// 范例："Log*.xml"表示搜索所有以Log開頭的Xml文件。</param>/// <param name="isSearchChild">是否搜索子目錄</param>public static string[] GetDirectories(string directoryPath, string searchPattern, bool isSearchChild){try{if (isSearchChild){return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.AllDirectories);}else{return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);}}catch (IOException ex){throw ex;}}#endregion#region 向文本文件寫入內容/// <summary>/// 向文本文件中寫入內容/// </summary>/// <param name="filePath">文件的絕對路徑</param>/// <param name="text">寫入的內容</param>/// <param name="encoding">編碼</param>public static void WriteText(string filePath, string text, Encoding encoding){//向文件寫入內容File.WriteAllText(filePath, text, encoding);}#endregion#region 向文本文件的尾部追加內容/// <summary>/// 向文本文件的尾部追加內容/// </summary>/// <param name="filePath">文件的絕對路徑</param>/// <param name="content">寫入的內容</param>public static void AppendText(string filePath, string content){File.AppendAllText(filePath, content);}#endregion#region 將現有文件的內容復制到新文件中/// <summary>/// 將源文件的內容復制到目標文件中/// </summary>/// <param name="sourceFilePath">源文件的絕對路徑</param>/// <param name="destFilePath">目標文件的絕對路徑</param>public static void Copy(string sourceFilePath, string destFilePath){File.Copy(sourceFilePath, destFilePath, true);}#endregion#region 將文件移動到指定目錄/// <summary>/// 將文件移動到指定目錄/// </summary>/// <param name="sourceFilePath">需要移動的源文件的絕對路徑</param>/// <param name="descDirectoryPath">移動到的目錄的絕對路徑</param>public static void Move(string sourceFilePath, string descDirectoryPath){//獲取源文件的名稱string sourceFileName = GetFileName(sourceFilePath);if (IsExistDirectory(descDirectoryPath)){//如果目標中存在同名文件,則刪除if (IsExistFile(descDirectoryPath + "\\" + sourceFileName)){DeleteFile(descDirectoryPath + "\\" + sourceFileName);}//將文件移動到指定目錄File.Move(sourceFilePath, descDirectoryPath + "\\" + sourceFileName);}}#endregion#region 從文件的絕對路徑中獲取文件名( 不包含擴展名 )/// <summary>/// 從文件的絕對路徑中獲取文件名( 不包含擴展名 )/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static string GetFileNameNoExtension(string filePath){//獲取文件的名稱FileInfo fi = new FileInfo(filePath);return fi.Name.Split('.')[0];}#endregion#region 從文件的絕對路徑中獲取擴展名/// <summary>/// 從文件的絕對路徑中獲取擴展名/// </summary>/// <param name="filePath">文件的絕對路徑</param> public static string GetExtension(string filePath){//獲取文件的名稱FileInfo fi = new FileInfo(filePath);return fi.Extension;}#endregion#region 清空指定目錄/// <summary>/// 清空指定目錄下所有文件及子目錄,但該目錄依然保存./// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>public static void ClearDirectory(string directoryPath){if (IsExistDirectory(directoryPath)){//刪除目錄中所有的文件string[] fileNames = GetFileNames(directoryPath);for (int i = 0; i < fileNames.Length; i++){DeleteFile(fileNames);}//刪除目錄中所有的子目錄string[] directoryNames = GetDirectories(directoryPath);for (int i = 0; i < directoryNames.Length; i++){DeleteDirectory(directoryNames);}}}#endregion#region 清空文件內容/// <summary>/// 清空文件內容/// </summary>/// <param name="filePath">文件的絕對路徑</param>public static void ClearFile(string filePath){//刪除文件File.Delete(filePath);//重新創建該文件CreateFile(filePath);}#endregion#region 刪除指定目錄/// <summary>/// 刪除指定目錄及其所有子目錄/// </summary>/// <param name="directoryPath">指定目錄的絕對路徑</param>public static void DeleteDirectory(string directoryPath){if (IsExistDirectory(directoryPath)){Directory.Delete(directoryPath, true);}}#endregion} }

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