• Asp.Net文件和文件夹操作大全


    /// <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);
            }

            #endregion

            #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 += "│&nbsp;";
                        }
                        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 += "│&nbsp;├";
                        }
                        else
                        {
                            string _f = "";
                            for (int i = 1; i <= nLevel; i++)
                            {
                                _f += "│&nbsp;";
                            }
                            Rn += _f + "│&nbsp;├";
                        }
                        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 += "│&nbsp;";
                        }
                        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 += "│&nbsp;├";
                        }
                        else
                        {
                            string _f = "";
                            for (int i = 1; i <= nLevel; i++)
                            {
                                _f += "│&nbsp;";
                            }
                            Rn += _f + "│&nbsp;├";
                        }
                        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

    获取文件夹及其子文件夹下的所有文件夹

    //储存所有文件夹名
    private ArrayList dirs;

    public FileAccess()
    {
    dirs = new ArrayList();
    }

    //获取所有文件名
    private ArrayList GetFileName(string dirPath)
    {
    ArrayList list = new ArrayList();

    if (Directory.Exists(dirPath))
    {
    list.AddRange(Directory.GetFiles(dirPath));
    }
    return list;
    }

    //获取所有文件夹及子文件夹
    private void GetDirs(string dirPath)
    {
    if (Directory.GetDirectories(dirPath).Length > 0)
    {
    foreach (string path in Directory.GetDirectories(dirPath))
    {
    dirs.Add(path);
    GetDirs(path);
    }
    }
    }


        }
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
    string dir = "E:\\a\\b\\d";
    //string dir = "E:\\a";
    string pdir = Directory.GetParent(dir).FullName;
    DeleteFolder(dir); 
    DeletePEmptyFolder(pdir);
    }
    public void DeleteFolder(string dir)
    {
    if (Directory.Exists(dir))
    {
    foreach (string d in Directory.GetFileSystemEntries(dir))
    {
    if (File.Exists(d))
    {
    FileInfo fi = new FileInfo(d);
    if (fi.Attributes.ToString().IndexOf("ReadOnly") != -1)
    fi.Attributes = FileAttributes.Normal;
    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);//删除已空文件夹 
    }
    }
    public void DeletePEmptyFolder(string dir)//遍历递归循环所有父级目录,一层一层的
    {
    if (Directory.GetDirectories(dir).Length == 0)
    {
    string pdir = Directory.GetParent(dir).FullName;
    if (Directory.Exists(dir))
    Directory.Delete(dir);
    DeletePEmptyFolder(pdir);
    }
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  • 原文地址:https://www.cnblogs.com/wybshyy/p/16042831.html
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