• ASP.NET操作文件大全


    1、重命名文件名称

    string 新文件名 = Guid.NewGuid().ToString("N");

    /// <summary>

        /// 创建年月日文件夹

        /// </summary>

        /// <param name="parPath">根目录</param>

     private void CreateDir(string parPath)

        {

            string months = System.DateTime.Now.Month < 10 ? "0" + System.DateTime.Now.Month.ToString() : System.DateTime.Now.Month.ToString();

            string dates = System.DateTime.Now.Day < 10 ? "0" + System.DateTime.Now.Day.ToString() : System.DateTime.Now.Day.ToString();

            DirectoryInfo dyear = new DirectoryInfo(parPath + System.DateTime.Now.Year.ToString());

            DirectoryInfo dmonth = new DirectoryInfo(parPath + System.DateTime.Now.Year.ToString() + "//" + months);

            DirectoryInfo ddate = new DirectoryInfo(parPath + System.DateTime.Now.Year.ToString() + "//" + months + "//" + dates);

            if (!dyear.Exists)

            {

                dyear.Create();

                dmonth = dyear.CreateSubdirectory(months);

                ddate = dmonth.CreateSubdirectory(dates);

            }

            if (!dmonth.Exists)

            {

                dmonth.Create();

                ddate = dmonth.CreateSubdirectory(dates);

            }

            if (!ddate.Exists)

            {

                ddate.Create();

            }

        }

    2、操作文件类

    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->        /// <summary>
            /// 创建文件夹
             /// </summary>
            /// <param name="Path"></param>
            public static void FolderCreate(string Path)
            {
                // 判断目标目录是否存在如果不存在则新建之
                if (!Directory.Exists(Path))
                    Directory.CreateDirectory(Path);
            }

            #region 创建目录
             public static void FileCreate(string Path)
            {
                FileInfo CreateFile = new FileInfo(Path); //创建文件
                if (!CreateFile.Exists)
                {
                    FileStream FS = CreateFile.Create();
                    FS.Close();
                }
            }
            #endregion

            #region 递归删除文件夹目录及文件
             /****************************************
             * 函数名称:DeleteFolder
             * 功能说明:递归删除文件夹目录及文件
             * 参    数:dir:文件夹路径
             * 调用示列:
             *           string dir = Server.MapPath( "test/");
             *           EC.FileObj.DeleteFolder(dir);      
            *****************************************/
            /// <summary>
            /// 递归删除文件夹目录及文件
            /// </summary>
            /// <param name="dir"></param>
            /// <returns></returns>
            public static void DeleteFolder(string dir)
            {
                if (Directory.Exists(dir)) //如果存在这个文件夹删除之
                {
                    foreach (string d in Directory.GetFileSystemEntries(dir))
                    {
                        if (File.Exists(d))
                            File.Delete(d); //直接删除其中的文件                       
                        else
                            DeleteFolder(d); //递归删除子文件夹
                    }
                    Directory.Delete(dir, true); //删除已空文件夹                
                }
            }

            #endregion

            #region 将指定文件夹下面的所有内容copy到目标文件夹下面 果目标文件夹为只读属性就会报错。
             /****************************************
             * 函数名称:CopyDir
             * 功能说明:将指定文件夹下面的所有内容copy到目标文件夹下面 果目标文件夹为只读属性就会报错。
             * 参    数:srcPath:原始路径,aimPath:目标文件夹
             * 调用示列:
             *           string srcPath = Server.MapPath( "test/");
             *           string aimPath = Server.MapPath( "test1/");
             *           EC.FileObj.CopyDir(srcPath,aimPath);  
            *****************************************/
            /// <summary>
            /// 指定文件夹下面的所有内容copy到目标文件夹下面
             /// </summary>
            /// <param name="srcPath">原始路径</param>
            /// <param name="aimPath">目标文件夹</param>
            public static void CopyDir(string srcPath, string aimPath)
            {
                try
                {
                    // 检查目标目录是否以目录分割字符结束如果不是则添加之
                    if (aimPath[aimPath.Length - 1] != Path.DirectorySeparatorChar)
                        aimPath += Path.DirectorySeparatorChar;
                    // 判断目标目录是否存在如果不存在则新建之
                    if (!Directory.Exists(aimPath))
                        Directory.CreateDirectory(aimPath);
                    // 得到源目录的文件列表,该里面是包含文件以及目录路径的一个数组
                    //如果你指向copy目标文件下面的文件而不包含目录请使用下面的方法
                    //string[] fileList = Directory.GetFiles(srcPath);
                    string[] fileList = Directory.GetFileSystemEntries(srcPath);
                    //遍历所有的文件和目录
                    foreach (string file in fileList)
                    {
                        //先当作目录处理如果存在这个目录就递归Copy该目录下面的文件

                        if (Directory.Exists(file))
                            CopyDir(file, aimPath + Path.GetFileName(file));
                        //否则直接Copy文件
                        else
                            File.Copy(file, aimPath + Path.GetFileName(file), true);
                    }
                }
                catch (Exception ee)
                {
                    throw new Exception(ee.ToString());
                }
            }
            #endregion

            #region 获取指定文件夹下所有子目录及文件(树形)
            /****************************************
             * 函数名称:GetFoldAll(string Path)
             * 功能说明:获取指定文件夹下所有子目录及文件(树形)
             * 参    数:Path:详细路径
              * 调用示列:
              *           string strDirlist = Server.MapPath( "templates");      
             *           this.Literal1.Text = EC.FileObj.GetFoldAll(strDirlist);
            *****************************************/
            /// <summary>
            /// 获取指定文件夹下所有子目录及文件
            /// </summary>
            /// <param name="Path">详细路径</param>
            public static string GetFoldAll(string Path)
            {

                string str = "";
                DirectoryInfo thisOne = new DirectoryInfo(Path);
                str = ListTreeShow(thisOne, 0, str);
                return str;

            }

            /// <summary>
            /// 获取指定文件夹下所有子目录及文件函数
            /// </summary>
            /// <param name="theDir">指定目录</param>
            /// <param name="nLevel">默认起始值,调用时,一般为0</param>
            /// <param name="Rn">用于迭加的传入值,一般为空</param>
            /// <returns></returns>
            public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn)//递归目录 文件
            {
                DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录
                foreach (DirectoryInfo dirinfo in subDirectories)
                {

                    if (nLevel == 0)
                    {
                        Rn += "├";
                    }
                    else
                    {
                        string _s = "";
                        for (int i = 1; i <= nLevel; i++)
                        {
                            _s += "│ ";
                        }
                        Rn += _s + "├";
                    }
                    Rn += "<b>" + dirinfo.Name.ToString() + "</b><br />";
                    FileInfo[] fileInfo = dirinfo.GetFiles();   //目录下的文件
                    foreach (FileInfo fInfo in fileInfo)
                    {
                        if (nLevel == 0)
                        {
                            Rn += "│ ├";
                        }
                        else
                        {
                            string _f = "";
                            for (int i = 1; i <= nLevel; i++)
                            {
                                _f += "│ ";
                            }
                            Rn += _f + "│ ├";
                        }
                        Rn += fInfo.Name.ToString() + " <br />";
                    }
                    Rn = ListTreeShow(dirinfo, nLevel + 1, Rn);

                }
                return Rn;
            }

            /****************************************
             * 函数名称:GetFoldAll(string Path)
             * 功能说明:获取指定文件夹下所有子目录及文件(下拉框形)
             * 参    数:Path:详细路径
             * 调用示列:
             *            string strDirlist = Server.MapPath( "templates");     
             *            this.Literal2.Text = EC.FileObj.GetFoldAll(strDirlist, "tpl","");
            *****************************************/
            /// <summary>
            /// 获取指定文件夹下所有子目录及文件(下拉框形)
            /// </summary>
            /// <param name="Path">详细路径</param>
            /// <param name="DropName">下拉列表名称</param>
            /// <param name="tplPath">默认选择模板名称</param>
            public static string GetFoldAll(string Path,string DropName,string tplPath)
            {
                string strDrop = "<select name=\"" + DropName + "\" id=\"" + DropName + "\"><option value=\"\">--请选择详细模板--</option>";
                string str = "";
                DirectoryInfo thisOne = new DirectoryInfo(Path);
                str = ListTreeShow(thisOne, 0, str,tplPath);
                return strDrop+str+ "</select>";

            }

            /// <summary>
            /// 获取指定文件夹下所有子目录及文件函数
            /// </summary>
            /// <param name="theDir">指定目录</param>
            /// <param name="nLevel">默认起始值,调用时,一般为0</param>
            /// <param name="Rn">用于迭加的传入值,一般为空</param>
            /// <param name="tplPath">默认选择模板名称</param>
            /// <returns></returns>
            public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn,string tplPath)//递归目录 文件
            {
                DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录

                foreach (DirectoryInfo dirinfo in subDirectories)
                {

                    Rn += "<option value=\"" + dirinfo.Name.ToString() + "\"";
                    if (tplPath.ToLower() == dirinfo.Name.ToString().ToLower())
                    {
                        Rn += " selected ";
                    }
                    Rn += ">";

                    if (nLevel == 0)
                    {
                        Rn += "┣";
                    }
                    else
                    {
                        string _s = "";
                        for (int i = 1; i <= nLevel; i++)
                        {
                            _s += "│ ";
                        }
                        Rn += _s + "┣";
                    }
                    Rn += "" + dirinfo.Name.ToString() + "</option>";

                    FileInfo[] fileInfo = dirinfo.GetFiles();   //目录下的文件
                    foreach (FileInfo fInfo in fileInfo)
                    {
                        Rn += "<option value=\"" + dirinfo.Name.ToString()+"/"+fInfo.Name.ToString() + "\"";
                        if (tplPath.ToLower() == fInfo.Name.ToString().ToLower())
                        {
                            Rn += " selected ";
                        }
                        Rn += ">";

                        if (nLevel == 0)
                        {
                            Rn += "│ ├";
                        }
                        else
                        {
                            string _f = "";
                            for (int i = 1; i <= nLevel; i++)
                            {
                                _f += "│ ";
                            }
                            Rn += _f + "│ ├";
                        }
                        Rn += fInfo.Name.ToString() + "</option>";
                    }
                    Rn = ListTreeShow(dirinfo, nLevel + 1, Rn, tplPath);

                }
                return Rn;
            }
            #endregion

            #region 获取文件夹大小
            /****************************************
             * 函数名称:GetDirectoryLength(string dirPath)
             * 功能说明:获取文件夹大小
             * 参    数:dirPath:文件夹详细路径
             * 调用示列:
             *           string Path = Server.MapPath( "templates");
             *           Response.Write(EC.FileObj.GetDirectoryLength(Path));      
            *****************************************/
            /// <summary>
            /// 获取文件夹大小
            /// </summary>
            /// <param name="dirPath">文件夹路径</param>
            /// <returns></returns>
            public static long GetDirectoryLength(string dirPath)
            {
                if (!Directory.Exists(dirPath))
                    return 0;
                long len = 0;
                DirectoryInfo di = new DirectoryInfo(dirPath);
                foreach (FileInfo fi in di.GetFiles())
                {
                    len += fi.Length;
                }
                DirectoryInfo[] dis = di.GetDirectories();
                if (dis.Length > 0)
                {
                    for (int i = 0; i < dis.Length; i++)
                    {
                        len += GetDirectoryLength(dis[i].FullName);
                    }
                }
                return len;
            }
            #endregion

            #region 获取指定文件详细属性
            /****************************************
             * 函数名称:GetFileAttibe(string filePath)
             * 功能说明:获取指定文件详细属性
             * 参    数:filePath:文件详细路径
             * 调用示列:
             *           string file = Server.MapPath( "robots.txt");
             *            Response.Write(EC.FileObj.GetFileAttibe(file));        
            *****************************************/
            /// <summary>
            /// 获取指定文件详细属性
            /// </summary>
            /// <param name="filePath">文件详细路径</param>
            /// <returns></returns>
            public static string GetFileAttibe(string filePath)
            {
                string str = "";
                System.IO.FileInfo objFI = new System.IO.FileInfo(filePath);
                str += "详细路径:" + objFI.FullName + "<br>文件名称:" + objFI.Name + "<br>文件长度:" + objFI.Length.ToString() + "字节<br>创建时间" + objFI.CreationTime.ToString() + "<br>最后访问时间:" + objFI.LastAccessTime.ToString() + "<br>修改时间:" + objFI.LastWriteTime.ToString() + "<br>所在目录:" + objFI.DirectoryName + "<br>扩展名:" + objFI.Extension;
                return str;
            }
            #endregion
        }
    }

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  • 原文地址:https://www.cnblogs.com/LYunF/p/2357588.html
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