ASP.NET上传文件用FileUpLoad就可以，但是对文件夹的操作却不能用FileUpLoad来实现。

下面这个示例便是使用ASP.NET来实现上传文件夹并对文件夹进行压缩以及解压。

ASP.NET页面设计：TextBox和Button按钮。

TextBox中需要自己受到输入文件夹的路径（包含文件夹），通过Button实现选择文件夹的问题还没有解决，暂时只能手动输入。

两种方法：生成rar和zip。

1.生成rar

using Microsoft.Win32;

using System.Diagnostics;

protected void Button1Click(object sender, EventArgs e)

    {

        RAR(@"E：\95413594531\GIS", "tmptest", @"E：\95413594531\");

    }

    ///

   /// 压缩文件

   ///

   /// 需要压缩的文件夹或者单个文件

   /// 生成压缩文件的文件名

   /// 生成压缩文件保存路径

   ///

    protected bool RAR(string DFilePath, string DRARName,string DRARPath)

    {

        String therar;

        RegistryKey theReg;

        Object theObj;

        String theInfo;

        ProcessStartInfo theStartInfo;

        Process theProcess;

        try

        {

            theReg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRAR.exe\Shell\Open\Command"); //注：未在注册表的根路径找到此路径

            theObj = theReg.GetValue("");

            therar = theObj.ToString();

            theReg.Close();

            therar = therar.Substring(1, therar.Length - 7);

            theInfo = " a    " + " " + DRARName + "  " + DFilePath +" -ep1"; //命令 + 压缩后文件名 + 被压缩的文件或者路径

            theStartInfo = new ProcessStartInfo();

            theStartInfo.FileName = therar;

            theStartInfo.Arguments = theInfo;

            theStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

            theStartInfo.WorkingDirectory = DRARPath ; //RaR文件的存放目录。

            theProcess = new Process();

            theProcess.StartInfo = theStartInfo;

            theProcess.Start();

            theProcess.WaitForExit();

            theProcess.Close();

            return true;

        }

        catch (Exception ex)

        {

            return false;

        }

    }

    ///

    /// 解压缩到指定文件夹

    ///

    /// 压缩文件存在的目录

    /// 压缩文件名称

    /// 解压到文件夹

    ///

    protected bool UnRAR(string RARFilePath,string RARFileName,string UnRARFilePath)

    {

        //解压缩

        String therar;

        RegistryKey theReg;

        Object theObj;

        String theInfo;

        ProcessStartInfo theStartInfo;

        Process theProcess;

        try

         {

            theReg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRar.exe\Shell\Open\Command");

            theObj = theReg.GetValue("");

            therar = theObj.ToString();

            theReg.Close();

            therar = therar.Substring(1, therar.Length - 7);

            theInfo = @" X " + " " + RARFilePath + RARFileName + " " + UnRARFilePath;

            theStartInfo = new ProcessStartInfo();

            theStartInfo.FileName = therar;

            theStartInfo.Arguments = theInfo;

            theStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

            theProcess = new Process();

            theProcess.StartInfo = theStartInfo;

            theProcess.Start();

            return true;

        }

        catch (Exception ex)

         {

             return false;

         }

    }

注：这种方法在在电脑注册表中未找到应有的路径，未实现，，仅供参考。

2.生成zip

通过调用类库ICSharpCode.SharpZipLib.dll

该类库可以从网上下载。也可以从本链接下载：SharpZipLib_0860_Bin.zip

增加两个类：Zip.cs和UnZip.cs

（1）Zip.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.IO;

using System.Collections;

using ICSharpCode.SharpZipLib.Checksums;

using ICSharpCode.SharpZipLib.Zip;

namespace UpLoad

{

    /// <summary>

    /// 功能：压缩文件

    /// creator chaodongwang 2009-11-11

    /// </summary>

    public class Zip

    {

        /// <summary>

        /// 压缩单个文件

        /// </summary>

        /// <param>被压缩的文件名称(包含文件路径)</param>

        /// <param>压缩后的文件名称(包含文件路径)</param>

        /// <param>压缩率0（无压缩）-9（压缩率最高）</param>

        /// <param>缓存大小</param>

        public void ZipFile(string FileToZip, string ZipedFile, int CompressionLevel)

        {

            //如果文件没有找到，则报错

            if (!System.IO.File.Exists(FileToZip))

            {