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  • 文件操作类2

    using System;
    using System.Text;
    using System.Web;
    using System.IO;

    namespace DotNet.Utilities
    {
        public class FileOperate
        {
            #region 写文件
            protected void Write_Txt(string FileName, string Content)
            {
                Encoding code = Encoding.GetEncoding("gb2312");
                string htmlfilename = HttpContext.Current.Server.MapPath("Precious\\" + FileName + ".txt"); //保存文件的路径
                string str = Content;
                StreamWriter sw = null;
                {
                    try
                    {
                        sw = new StreamWriter(htmlfilename, false, code);
                        sw.Write(str);
                        sw.Flush();
                    }
                    catch { }
                }
                sw.Close();
                sw.Dispose();

            }
            #endregion

            #region 读文件
            protected string Read_Txt(string filename)
            {

                Encoding code = Encoding.GetEncoding("gb2312");
                string temp = HttpContext.Current.Server.MapPath("Precious\\" + filename + ".txt");
                string str = "";
                if (File.Exists(temp))
                {
                    StreamReader sr = null;
                    try
                    {
                        sr = new StreamReader(temp, code);
                        str = sr.ReadToEnd(); // 读取文件
                    }
                    catch { }
                    sr.Close();
                    sr.Dispose();
                }
                else
                {
                    str = "";
                }


                return str;
            }
            #endregion

            #region 取得文件后缀名
            /****************************************
             * 函数名称:GetPostfixStr
             * 功能说明:取得文件后缀名
             * 参    数:filename:文件名称
             * 调用示列:
             *           string filename = "aaa.aspx";       
             *           string s = DotNet.Utilities.FileOperate.GetPostfixStr(filename);        
            *****************************************/
            /// <summary>
            /// 取后缀名
            /// </summary>
            /// <param name="filename">文件名</param>
            /// <returns>.gif|.html格式</returns>
            public static string GetPostfixStr(string filename)
            {
                int start = filename.LastIndexOf(".");
                int length = filename.Length;
                string postfix = filename.Substring(start, length - start);
                return postfix;
            }
            #endregion

            #region 写文件
            /****************************************
             * 函数名称:WriteFile
             * 功能说明:当文件不存时,则创建文件,并追加文件
             * 参    数:Path:文件路径,Strings:文本内容
             * 调用示列:
             *           string Path = Server.MapPath("Default2.aspx");      
             *           string Strings = "这是我写的内容啊";
             *           DotNet.Utilities.FileOperate.WriteFile(Path,Strings);
            *****************************************/
            /// <summary>
            /// 写文件
            /// </summary>
            /// <param name="Path">文件路径</param>
            /// <param name="Strings">文件内容</param>
            public static void WriteFile(string Path, string Strings)
            {

                if (!System.IO.File.Exists(Path))
                {
                    System.IO.FileStream f = System.IO.File.Create(Path);
                    f.Close();
                    f.Dispose();
                }
                System.IO.StreamWriter f2 = new System.IO.StreamWriter(Path, true, System.Text.Encoding.UTF8);
                f2.WriteLine(Strings);
                f2.Close();
                f2.Dispose();


            }
            #endregion

            #region 读文件
            /****************************************
             * 函数名称:ReadFile
             * 功能说明:读取文本内容
             * 参    数:Path:文件路径
             * 调用示列:
             *           string Path = Server.MapPath("Default2.aspx");      
             *           string s = DotNet.Utilities.FileOperate.ReadFile(Path);
            *****************************************/
            /// <summary>
            /// 读文件
            /// </summary>
            /// <param name="Path">文件路径</param>
            /// <returns></returns>
            public static string ReadFile(string Path)
            {
                string s = "";
                if (!System.IO.File.Exists(Path))
                    s = "不存在相应的目录";
                else
                {
                    StreamReader f2 = new StreamReader(Path, System.Text.Encoding.GetEncoding("gb2312"));
                    s = f2.ReadToEnd();
                    f2.Close();
                    f2.Dispose();
                }

                return s;
            }
            #endregion

            #region 追加文件
            /****************************************
             * 函数名称:FileAdd
             * 功能说明:追加文件内容
             * 参    数:Path:文件路径,strings:内容
             * 调用示列:
             *           string Path = Server.MapPath("Default2.aspx");    
             *           string Strings = "新追加内容";
             *           DotNet.Utilities.FileOperate.FileAdd(Path, Strings);
            *****************************************/
            /// <summary>
            /// 追加文件
            /// </summary>
            /// <param name="Path">文件路径</param>
            /// <param name="strings">内容</param>
            public static void FileAdd(string Path, string strings)
            {
                StreamWriter sw = File.AppendText(Path);
                sw.Write(strings);
                sw.Flush();
                sw.Close();
                sw.Dispose();
            }
            #endregion

            #region 拷贝文件
            /****************************************
             * 函数名称:FileCoppy
             * 功能说明:拷贝文件
             * 参    数:OrignFile:原始文件,NewFile:新文件路径
             * 调用示列:
             *           string OrignFile = Server.MapPath("Default2.aspx");    
             *           string NewFile = Server.MapPath("Default3.aspx");
             *           DotNet.Utilities.FileOperate.FileCoppy(OrignFile, NewFile);
            *****************************************/
            /// <summary>
            /// 拷贝文件
            /// </summary>
            /// <param name="OrignFile">原始文件</param>
            /// <param name="NewFile">新文件路径</param>
            public static void FileCoppy(string OrignFile, string NewFile)
            {
                File.Copy(OrignFile, NewFile, true);
            }

            #endregion

            #region 删除文件
            /****************************************
             * 函数名称:FileDel
             * 功能说明:删除文件
             * 参    数:Path:文件路径
             * 调用示列:
             *           string Path = Server.MapPath("Default3.aspx");   
             *           DotNet.Utilities.FileOperate.FileDel(Path);
            *****************************************/
            /// <summary>
            /// 删除文件
            /// </summary>
            /// <param name="Path">路径</param>
            public static void FileDel(string Path)
            {
                File.Delete(Path);
            }
            #endregion

            #region 移动文件
            /****************************************
             * 函数名称:FileMove
             * 功能说明:移动文件
             * 参    数:OrignFile:原始路径,NewFile:新文件路径
             * 调用示列:
             *            string OrignFile = Server.MapPath("../说明.txt");   
             *            string NewFile = Server.MapPath("../../说明.txt");
             *            DotNet.Utilities.FileOperate.FileMove(OrignFile, NewFile);
            *****************************************/
            /// <summary>
            /// 移动文件
            /// </summary>
            /// <param name="OrignFile">原始路径</param>
            /// <param name="NewFile">新路径</param>
            public static void FileMove(string OrignFile, string NewFile)
            {
                File.Move(OrignFile, NewFile);
            }
            #endregion

            #region 在当前目录下创建目录
            /****************************************
             * 函数名称:FolderCreate
             * 功能说明:在当前目录下创建目录
             * 参    数:OrignFolder:当前目录,NewFloder:新目录
             * 调用示列:
             *           string OrignFolder = Server.MapPath("test/");   
             *           string NewFloder = "new";
             *           DotNet.Utilities.FileOperate.FolderCreate(OrignFolder, NewFloder);
            *****************************************/
            /// <summary>
            /// 在当前目录下创建目录
            /// </summary>
            /// <param name="OrignFolder">当前目录</param>
            /// <param name="NewFloder">新目录</param>
            public static void FolderCreate(string OrignFolder, string NewFloder)
            {
                Directory.SetCurrentDirectory(OrignFolder);
                Directory.CreateDirectory(NewFloder);
            }

            /// <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/"); 
             *           DotNet.Utilities.FileOperate.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/");
             *           DotNet.Utilities.FileOperate.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 = DotNet.Utilities.FileOperate.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 = DotNet.Utilities.FileOperate.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(DotNet.Utilities.FileOperate.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(DotNet.Utilities.FileOperate.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

        }
    }

    感谢来访,共同学习!
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  • 原文地址:https://www.cnblogs.com/dingxiaowei/p/3058795.html
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