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命名空间：namespace System.IO.Compression
压缩：
//目标文件夹 string fileDirPath = "/Downloads/试题" + userId + "_" + courseId; string downPath = Server.MapPath(fileDirPath); if (!Directory.Exists(downPath)) { Directory.CreateDirectory(downPath); } System.IO.File.SetAttributes(downPath, FileAttributes.Normal); //压缩文件 string filePathZIP = Server.MapPath(fileDirPath) + ".zip"; //压缩文件夹 if (System.IO.File.Exists(filePathZIP)) { System.IO.File.Delete(filePathZIP); } System.IO.File.SetAttributes(downPath, FileAttributes.Normal); ZipFile.CreateFromDirectory(downPath, filePathZIP, CompressionLevel.Optimal, true);//压缩文件 if (System.IO.Directory.Exists(downPath)) { System.IO.Directory.Delete(downPath, true); //删除原文件夹 } return File(filePathZIP, "application/octet-stream", "试题" + "_" + userId + "_" + courseId + ".zip");
解压：
HttpPostedFileBase fileBase = Request.Files["fileImport"]; string fileName = Path.GetFileName(fileBase.FileName); string fileNameNoExt = Path.GetFileNameWithoutExtension(fileBase.FileName); string extension = Path.GetExtension(fileName); if (extension.ToLower() != ".zip") //extension.ToLower() != ".xls" || extension.ToLower() != ".xlsx" || { //window.location.href=‘@Url.Action(‘CoursePackManage‘,‘ManageCourse‘)‘ window.location.href=‘/admin/ManageCourse/CoursePackManage‘; return Content("<script type=‘text/javascript‘>alert(‘请上传zip格式的压缩文件‘);window.location.href=‘/admin/ManageCourse/CoursePackManage‘;</script>"); } string filePath = "/UploadFile/试题/"; // +DateTime.Now.ToString("yyyyMMdd") + "/"; if (!Directory.Exists(Server.MapPath(filePath))) //文件夹 { Directory.CreateDirectory(Server.MapPath(filePath)); } string nowTime = DateTime.Now.ToString("yyyyMMddHHmmssfff"); string fullFileName = Server.MapPath(filePath + nowTime + "_" + userId + "_" + courseId + "_" + fileName);//文件名 fileBase.SaveAs(fullFileName); #region 压缩包 if (extension.ToLower() == ".zip") { string destFilePath = Server.MapPath(filePath + nowTime + "_" + userId + "_" + courseId + "_" + fileNameNoExt); //不带后缀文件名字 if (!Directory.Exists(destFilePath)) //文件夹 { Directory.CreateDirectory(destFilePath); } ZipFile.ExtractToDirectory(fullFileName, destFilePath, Encoding.Default); //解压文件 System.IO.File.Delete(fullFileName);//解压后删除文件 #region 复制文件夹 DirectoryInfo sourceDir = new System.IO.DirectoryInfo(destFilePath); //处理文件夹 foreach (var item in sourceDir.GetDirectories()) //一级目录 { foreach (var childDir in item.GetDirectories()) //二级目录 { if (childDirName.Equals("文件夹名", StringComparison.CurrentCultureIgnoreCase)) { CopyDirectory(childFullName, destDirName); //复制文件夹 } } } #endregion } #endregion
复制文件夹：
/// <summary> /// 复制文件夹 /// </summary> /// <param name="sourceDirName">源文件</param> /// <param name="destDirName">目标文件</param> private void CopyDirectory(string sourceDirName, string destDirName) { try { if (!Directory.Exists(destDirName)) { Directory.CreateDirectory(destDirName); System.IO.File.SetAttributes(destDirName, System.IO.File.GetAttributes(sourceDirName)); } if (destDirName[destDirName.Length - 1] != Path.DirectorySeparatorChar) // =="\\" { destDirName = destDirName + Path.DirectorySeparatorChar; } string[] files = Directory.GetFiles(sourceDirName); foreach (string file in files) { if (System.IO.File.Exists(destDirName + Path.GetFileName(file))) continue; System.IO.File.Copy(file, destDirName + Path.GetFileName(file), true); System.IO.File.SetAttributes(destDirName + Path.GetFileName(file), FileAttributes.Normal); //total++; } string[] dirs = Directory.GetDirectories(sourceDirName);//包括路径 foreach (string dir in dirs) { CopyDirectory(dir, destDirName + Path.GetFileName(dir)); } } catch (Exception ex) { //StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + "\\log.txt", true); //System.Web.Providers.Entities //sw.Write(ex.Message + " " + DateTime.Now + "\r\n"); //sw.Close(); } }
文件属性：
C#遍历指定文件夹中的所有文件 DirectoryInfo TheFolder=new DirectoryInfo(folderFullName); //遍历文件夹 foreach(DirectoryInfo NextFolder in TheFolder.GetDirectories()) this.listBox1.Items.Add(NextFolder.Name); //遍历文件 foreach(FileInfo NextFile in TheFolder.GetFiles()) this.listBox2.Items.Add(NextFile.Name); =================================================================== 如何获取指定目录包含的文件和子目录 1. DirectoryInfo.GetFiles()：获取目录中（不包含子目录）的文件，返回类型为FileInfo[]，支持通配符查找； 2. DirectoryInfo.GetDirectories()：获取目录（不包含子目录）的子目录，返回类型为DirectoryInfo[]，支持通配符查找； 3. DirectoryInfo. GetFileSystemInfos()：获取指定目录下（不包含子目录）的文件和子目录，返回类型为FileSystemInfo[]，支持通配符查找； 如何获取指定文件的基本信息； FileInfo.Exists：获取指定文件是否存在； FileInfo.Name，FileInfo.Extensioin：获取文件的名称和扩展名； FileInfo.FullName：获取文件的全限定名称（完整路径）； FileInfo.Directory：获取文件所在目录，返回类型为DirectoryInfo； FileInfo.DirectoryName：获取文件所在目录的路径（完整路径）； FileInfo.Length：获取文件的大小（字节数）； FileInfo.IsReadOnly：获取文件是否只读； FileInfo.Attributes：获取或设置指定文件的属性，返回类型为FileAttributes枚举，可以是多个值的组合 FileInfo.CreationTime、FileInfo.LastAccessTime、FileInfo.LastWriteTime：分别用于获取文件的创建时间、访问时间、修改时间；
C#文件及文件夹操作示例 http://www.cnblogs.com/terer/articles/1514601.html
//1.---------文件夹创建、移动、删除--------- //创建文件夹 Directory.CreateDirectory(Server.MapPath("a")); Directory.CreateDirectory(Server.MapPath("b")); Directory.CreateDirectory(Server.MapPath("c")); //移动b到a Directory.Move(Server.MapPath("b"), Server.MapPath("a\\b")); //删除c Directory.Delete(Server.MapPath("c")); //2.---------文件创建、复制、移动、删除--------- //创建文件 //使用File.Create创建再复制/移动/删除时会提示：文件正由另一进程使用,因此该进程无法访问该文件 //改用 FileStream 获取 File.Create 返回的 System.IO.FileStream 再进行关闭就无此问题 FileStream fs; fs = File.Create(Server.MapPath("a.txt")); fs.Close(); fs = File.Create(Server.MapPath("b.txt")); fs.Close(); fs = File.Create(Server.MapPath("c.txt")); fs.Close(); //复制文件 File.Copy(Server.MapPath("a.txt"), Server.MapPath("a\\a.txt")); //移动文件 File.Move(Server.MapPath("b.txt"), Server.MapPath("a\\b.txt")); File.Move(Server.MapPath("c.txt"), Server.MapPath("a\\c.txt")); //删除文件 File.Delete(Server.MapPath("a.txt")); //3.---------遍历文件夹中的文件和子文件夹并显示其属性--------- if(Directory.Exists(Server.MapPath("a"))) { //所有子文件夹 foreach(string item in Directory.GetDirectories(Server.MapPath("a"))) { Response.Write("<b>文件夹：" + item + "</b><br/>"); DirectoryInfo directoryinfo = new DirectoryInfo(item); Response.Write("名称：" + directoryinfo.Name + "<br/>"); Response.Write("路径：" + directoryinfo.FullName + "<br/>"); Response.Write("创建时间：" + directoryinfo.CreationTime + "<br/>"); Response.Write("上次访问时间：" + directoryinfo.LastAccessTime + "<br/>"); Response.Write("上次修改时间：" + directoryinfo.LastWriteTime + "<br/>"); Response.Write("父文件夹：" + directoryinfo.Parent + "<br/>"); Response.Write("所在根目录：" + directoryinfo.Root + "<br/>"); Response.Write("<br/>"); } //所有子文件 foreach (string item in Directory.GetFiles(Server.MapPath("a"))) { Response.Write("<b>文件：" + item + "</b><br/>"); FileInfo fileinfo = new FileInfo(item); Response.Write("名称：" + fileinfo.Name + "<br/>"); Response.Write("扩展名：" + fileinfo.Extension +"<br/>"); Response.Write("路径：" + fileinfo.FullName +"<br/>"); Response.Write("大小：" + fileinfo.Length +"<br/>"); Response.Write("创建时间：" + fileinfo.CreationTime +"<br/>"); Response.Write("上次访问时间：" + fileinfo.LastAccessTime +"<br/>"); Response.Write("上次修改时间：" + fileinfo.LastWriteTime +"<br/>"); Response.Write("所在文件夹：" + fileinfo.DirectoryName +"<br/>"); Response.Write("文件属性：" + fileinfo.Attributes +"<br/>"); Response.Write("<br/>"); } } //4.---------文件读写--------- if (File.Exists(Server.MapPath("a\\a.txt"))) { StreamWriter streamwrite = new StreamWriter(Server.MapPath("a\\a.txt")); streamwrite.WriteLine("木子屋"); streamwrite.WriteLine("http://www.mzwu.com/"); streamwrite.Write("2008-04-13"); streamwrite.Close(); StreamReader streamreader = new StreamReader(Server.MapPath("a\\a.txt")); Response.Write(streamreader.ReadLine()); Response.Write(streamreader.ReadToEnd()); streamreader.Close(); }
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原文地址：http://www.cnblogs.com/love201314/p/5639750.html
