asp.net文件和文件夹压缩

法一：调用winrar

using Microsoft.Win32;
using System.Diagnostics;

protected void Button1_Click(object sender, EventArgs e)
{
RAR(@"E:/95413594531/GIS", "tmptest", @"E:/95413594531/");
}

/// <summary>
/// 压缩文件
/// </summary>
/// <param name="DFilePath">需要压缩的文件夹或者单个文件</param>
/// <param name="DRARName">生成压缩文件的文件名</param>
/// <param name="DRARPath">生成压缩文件保存路径</param>
/// <returns></returns>
protected bool RAR(string DFilePath, string DRARName,string DRARPath)
{
String the_rar;
RegistryKey the_Reg;
Object the_Obj;
String the_Info;
ProcessStartInfo the_StartInfo;
Process the_Process;
try
{
the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications/WinRAR.exe/Shell/Open/Command");
the_Obj = the_Reg.GetValue("");
the_rar = the_Obj.ToString();
the_Reg.Close();
the_rar = the_rar.Substring(1, the_rar.Length - 7);
the_Info = " a " + " " + DRARName + " " + DFilePath +" -ep1"; //命令 + 压缩后文件名 + 被压缩的文件或者路径
the_StartInfo = new ProcessStartInfo();
the_StartInfo.FileName = the_rar;
the_StartInfo.Arguments = the_Info;
the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
the_StartInfo.WorkingDirectory = DRARPath ; //RaR文件的存放目录。
the_Process = new Process();
the_Process.StartInfo = the_StartInfo;
the_Process.Start();
the_Process.WaitForExit();
the_Process.Close();
return true;
}
catch (Exception ex)
{
return false;
}
}

/// <summary>
/// 解压缩到指定文件夹
/// </summary>
/// <param name="RARFilePath">压缩文件存在的目录 </param>
/// <param name="RARFileName">压缩文件名称 </param>
/// <param name="UnRARFilePath">解压到文件夹</param>
/// <returns></returns>
protected bool UnRAR(string RARFilePath,string RARFileName,string UnRARFilePath)
{
//解压缩
String the_rar;
RegistryKey the_Reg;
Object the_Obj;
String the_Info;
ProcessStartInfo the_StartInfo;
Process the_Process;
try
{
the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications/WinRar.exe/Shell/Open/Command");
the_Obj = the_Reg.GetValue("");
the_rar = the_Obj.ToString();
the_Reg.Close();
the_rar = the_rar.Substring(1, the_rar.Length - 7);
the_Info = @" X " + " " + RARFilePath + RARFileName + " " + UnRARFilePath;
the_StartInfo = new ProcessStartInfo();
the_StartInfo.FileName = the_rar;
the_StartInfo.Arguments = the_Info;
the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
the_Process = new Process();
the_Process.StartInfo = the_StartInfo;
the_Process.Start();
return true;
}
catch (Exception ex)
{
return false;
}

}

法二：调用类库ICSharpCode.SharpZipLib.dll

using System.IO;
using ICSharpCode.SharpZipLib;
using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.GZip;
using ICSharpCode.SharpZipLib.BZip2;

using ICSharpCode.SharpZipLib.Zip.Compression;
using ICSharpCode.SharpZipLib.Zip.Compression.Streams;

protected void Button1_Click(object sender, EventArgs e)
{
string[] str = new string[1];
str[0] = @"E:/9541241560/地学院/";
Zip(str);
}

#region 压缩
/// <summary>
/// 压缩文件,默认目录为当前目录，文件名为当前目录名，压缩级别为6
/// </summary>
/// <param name="fileOrDirectory">要压缩的文件或文件夹</param>
public void Zip(params string[] fileOrDirectory)
{
Zip(6, fileOrDirectory);
}

/// <summary>
/// 压缩文件,默认目录为当前目录，文件名为当前目录名
/// </summary>
/// <param name="zipLevel">压缩的级别</param>
/// <param name="fileOrDirectory">要压缩的文件或文件夹</param>
public void Zip(int zipLevel, params string[] fileOrDirectory)
{
if (fileOrDirectory == null)
return;
else if (fileOrDirectory.Length < 1)
return;
else
{
string str = fileOrDirectory[0];
if (str.EndsWith("//"))
str = str.Substring(0, str.Length - 1);
str += ".zip";
Zip(str, zipLevel, fileOrDirectory);
}
}

/// <summary>
/// 压缩文件,默认目录为当前目录
/// </summary>
/// <param name="zipedFileName">压缩后的文件</param>
/// <param name="zipLevel">压缩的级别</param>
/// <param name="fileOrDirectory">要压缩的文件或文件夹</param>
public void Zip(string zipedFileName, int zipLevel, params string[] fileOrDirectory)
{
if (fileOrDirectory == null)
return;
else if (fileOrDirectory.Length < 1)
return;
else
{
string str = fileOrDirectory[0];
if (str.EndsWith("//"))
str = str.Substring(0, str.Length - 1);
str = str.Substring(0, str.LastIndexOf("//"));
Zip(zipedFileName, str, zipLevel, fileOrDirectory);
}
}

/// <summary>
/// 压缩文件
/// </summary>
/// <param name="zipedFileName">压缩后的文件</param>
/// <param name="zipLevel">压缩的级别</param>
/// <param name="currentDirectory">当前所处目录</param>
/// <param name="fileOrDirectory">要压缩的文件或文件夹</param>
public void Zip(string zipedFileName, string currentDirectory, int zipLevel, params string[] fileOrDirectory)
{
ArrayList AllFiles = new ArrayList();

//获取所有文件
if (fileOrDirectory != null)
{
for (int i = 0; i < fileOrDirectory.Length; i++)
{
if (File.Exists(fileOrDirectory[i]))
AllFiles.Add(fileOrDirectory[i]);
else if (Directory.Exists(fileOrDirectory[i]))
GetDirectoryFile(fileOrDirectory[i], AllFiles);
}
}

if (AllFiles.Count < 1)
return;

ZipOutputStream zipedStream = new ZipOutputStream(File.Create(zipedFileName));
zipedStream.SetLevel(zipLevel);

for (int i = 0; i < AllFiles.Count; i++)
{
string file = AllFiles[i].ToString();
FileStream fs;

//打开要压缩的文件
try
{
fs = File.OpenRead(file);
}
catch
{
continue;
}

try
{
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);

//新建一个entry
string fileName = file.Replace(currentDirectory, "");
if (fileName.StartsWith("//"))
fileName = fileName.Substring(1);
ZipEntry entry = new ZipEntry(fileName);
entry.DateTime = DateTime.Now;

//保存到zip流
fs.Close();
zipedStream.PutNextEntry(entry);
zipedStream.Write(buffer, 0, buffer.Length);
}
catch
{
}
finally
{
fs.Close();
fs.Dispose();
}
}

zipedStream.Finish();
zipedStream.Close();
}

/// <summary>
/// 压缩文件夹
/// </summary>
/// <param name="curretnDirectory">当前所在的文件夹</param>
public void ZipDirectory(string curretnDirectory)
{
if (curretnDirectory == null)
return;

string dir = curretnDirectory;
if (dir.EndsWith("//"))
dir = dir.Substring(0, dir.Length - 1);
string file = dir.Substring(dir.LastIndexOf("//") + 1) + ".zip";
dir += "//" + file;

Zip(dir, 6, curretnDirectory);
}

/// <summary>
/// 压缩文件夹
/// </summary>
/// <param name="curretnDirectory">当前所在的文件夹</param>
public void ZipDirectory(string curretnDirectory, int zipLevel)
{
if (curretnDirectory == null)
return;

string dir = curretnDirectory;
if (dir.EndsWith("//"))
dir = dir.Substring(0, dir.Length - 1);
dir += ".zip";

Zip(dir, zipLevel, curretnDirectory);
}

//递归获取一个目录下的所有文件
private void GetDirectoryFile(string parentDirectory, ArrayList toStore)
{
string[] files = Directory.GetFiles(parentDirectory);
for (int i = 0; i < files.Length; i++)
toStore.Add(files[i]);
string[] directorys = Directory.GetDirectories(parentDirectory);
for (int i = 0; i < directorys.Length; i++)
GetDirectoryFile(directorys[i], toStore);
}
#endregion