利用ICSharpCode进行压缩和解压缩

//****************************************************************************************
//作者：轻狂书生
//博客地址：http://www.cnblogs.com/xiaoshuai1992
//create: 2014/2/26
//功能：实现文件压缩
//使用方法：设置参数进行压缩
//*****************************************************************************************

using System;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;
using System.Text;

namespace ZipCompress
{
public class CompressFile
{
/// <summary>
/// 压缩文件参数
/// </summary>
public ZipParameter ZipParameter { get; set; }
/// <summary>
/// 压缩文件参数
/// </summary>
public DeZipParameter DeZipParameter { get; set; }
/// <summary>
/// 压缩文件参数
/// </summary>
public ZipFolderParameter ZipFolderParameter { get; set; }

/// <summary>
/// 压缩文件返回压缩后的信息
/// </summary>
/// <returns>string 返回压缩后的提示信息</returns>
public void Compress()
{
FileStream Zip_File;
ZipOutputStream ZipStream;
ZipEntry ZipEntry;
//string rtnMessage = "";//返回的信息

try
{
//循环文件，如果文件不存在就不添加的压缩里面
for (int i = 0; i < ZipParameter.ZIPFileList.Count; i++)
{
if (!File.Exists(ZipParameter.ZIPFileList[i]))
{
ZipParameter.ZIPFileList.RemoveAt(i);
i--;
}

}
//没有有文件下面的压缩不执行
if (ZipParameter.ZIPFileList.Count == 0)
{
return;
}
//没有目录进行创建
if (!Directory.Exists(ZipParameter.ZIPDirectoryName))
{
Directory.CreateDirectory(ZipParameter.ZIPDirectoryName);
}

// 解决文档名称乱码问题,出现乱码就是因为CodePage不对
Encoding gbk = Encoding.GetEncoding("gbk");
ICSharpCode.SharpZipLib.Zip.ZipConstants.DefaultCodePage = gbk.CodePage;

//文件路径，文档路径与文件名称
string strPath = ZipParameter.ZIPDirectoryName + ZipParameter.ZIPName;

Zip_File = File.Create(strPath);
ZipStream = new ZipOutputStream(Zip_File);

ZipStream.Password = ZipParameter.Password;
ZipStream.SetLevel(ZipParameter.Level);

foreach (string FileToZip in ZipParameter.ZIPFileList)
{
Zip_File = File.OpenRead(FileToZip);
byte[] buffer = new byte[Zip_File.Length];
Zip_File.Read(buffer, 0, buffer.Length);
Zip_File.Close();
ZipEntry = new ZipEntry(Path.GetFileName(FileToZip));
ZipStream.PutNextEntry(ZipEntry);
ZipStream.Write(buffer, 0, buffer.Length);
}
ZipStream.Finish();
ZipStream.Close();
Zip_File.Close();

}
catch (Exception ex)
{
throw ex;
}
finally
{
GC.Collect();
GC.Collect(1);
}
}

/// <summary>
/// 压缩文件夹
/// </summary>
/// <returns></returns>
public void CompressFolder()
{
FastZip fz = new FastZip();
fz.CreateZip(ZipFolderParameter.ZipFileName, ZipFolderParameter.SourceDirectory, ZipFolderParameter.Recurse, ZipFolderParameter.FileFilter);

}

/// <summary>
/// 解压缩文件,可以解压到下层文件夹
/// </summary>
/// <returns>提示信息</returns>
public void Decompress()
{
//路径处理
string strDirectory = DeZipParameter.ZIPDirectoryName;
if (strDirectory == "")
strDirectory = Directory.GetCurrentDirectory();
if (!strDirectory.EndsWith("\\"))
strDirectory = strDirectory + "\\";
try
{
using (ZipInputStream s = new ZipInputStream(File.OpenRead(DeZipParameter.ZIPFullPath)))
{
s.Password = DeZipParameter.Password;
ZipEntry theEntry;

while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = "";
string pathToZip = "";
pathToZip = theEntry.Name;

if (pathToZip != "")
directoryName = Path.GetDirectoryName(pathToZip) + "\\";

string fileName = Path.GetFileName(pathToZip);

Directory.CreateDirectory(strDirectory + directoryName);

if (fileName != "")
{
if ((File.Exists(strDirectory + directoryName + fileName)) || (!File.Exists(strDirectory + directoryName + fileName)))
{
using (FileStream streamWriter = File.Create(strDirectory + directoryName + fileName))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);

if (size > 0)
streamWriter.Write(data, 0, size);
else
break;
}
streamWriter.Close();
}
}
}
}
s.Close();
}
}
catch (Exception ex)
{
throw ex;
}
}

}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ZipCompress
{
/// <summary>
/// 解压缩的一些属性
/// </summary>
public class DeZipParameter
{
private string zip_FullPath = "";
private string zip_DirectoryName = "";
private string zip_Password = "";
/// <summary>
/// 要解压缩的文件的完整路径
/// </summary>
public string ZIPFullPath
{
get { return zip_FullPath; }
set { zip_FullPath = value; }
}

/// <summary>
/// 解压缩的文件路径
/// </summary>
public string ZIPDirectoryName
{
get { return zip_DirectoryName; }
set { zip_DirectoryName = value; }
}

/// <summary>
/// 加密密碼
/// </summary>
public string Password
{
get { return zip_Password; }
set { zip_Password = value; }
}
}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ZipCompress
{
/// <summary>
/// 压缩文件的类
/// </summary>
public class ZipParameter
{
private string zip_Name = "";
private string zip_DirectoryName = "";
private List<string> zip_FileList = new List<string>();
private string zip_Password = "";
private int zip_Level = 6;
/// <summary>
/// 压缩后的文件名称
/// </summary>
public string ZIPName
{
get { return zip_Name; }
set { zip_Name = value; }
}

/// <summary>
/// 压缩的文件路径
/// </summary>
public string ZIPDirectoryName
{
get { return zip_DirectoryName; }
set { zip_DirectoryName = value; }
}
/// <summary>
/// 压缩的文件列表
/// </summary>
public List<string> ZIPFileList
{
get { return zip_FileList; }
set { zip_FileList = value; }
}
/// <summary>
/// 加密密碼
/// </summary>
public string Password
{
get { return zip_Password; }
set { zip_Password = value; }
}
/// <summary>
/// 压缩比例等级，默认为6，0 - store only to 9 - means best compression
/// </summary>
public int Level
{
get { return zip_Level; }
set { zip_Level = value; }
}
}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ZipCompress
{
/// <summary>
/// 压缩文件夹的类
/// </summary>
public class ZipFolderParameter
{
private string zipFileName = "";
private string sourceDirectory = "";
private bool recurse = true;
private string fileFilter = "";
/// <summary>
/// 生成的压缩文件
/// </summary>
public string ZipFileName
{
get { return zipFileName; }
set { zipFileName = value; }
}

/// <summary>
/// 待压缩的文件夹
/// </summary>
public string SourceDirectory
{
get { return sourceDirectory; }
set { sourceDirectory = value; }
}
/// <summary>
/// 文件过滤，即决定那些后缀的文件被压缩
/// </summary>
public string FileFilter
{
get { return fileFilter; }
set { fileFilter = value; }
}
/// <summary>
/// 是否遍历子目录，True就遍历，False则不遍历
/// </summary>
public bool Recurse
{
get { return recurse; }
set { recurse = value; }
}
}
}

ZipParameter zp = new ZipParameter();
zp.Password = "123456";
zp.Level = 1;
zp.ZIPDirectoryName = @"C:\Users\Public\Pictures\Sample Pictures\";
zp.ZIPName = "Test.zip";
zp.ZIPFileList.Add(@"C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg");
zp.ZIPFileList.Add(@"C:\Users\Public\Pictures\Sample Pictures\Desert.jpg");
zp.ZIPFileList.Add(@"C:\Users\WH130406P\Documents\RelatedTemplate.xlsx");

DeZipParameter dzp = new DeZipParameter();
dzp.ZIPFullPath = @"D:\项目必备\开发实例\wf20131124.zip";
dzp.ZIPDirectoryName = @"C:\Users\Public\Pictures\Sample Pictures\Test";
dzp.Password = "123456";

ZipFolderParameter zfp = new ZipFolderParameter();
zfp.ZipFileName = @"C:\Users\Public\Pictures\Sample Pictures\zipFolder.zip";
zfp.SourceDirectory = @"D:\xs\項目";
zfp.Recurse = true;

CompressFile cprFile = new CompressFile();
cprFile.ZipParameter = zp;
cprFile.DeZipParameter = dzp;
cprFile.ZipFolderParameter = zfp;
cprFile.Compress();
cprFile.Decompress();
cprFile.CompressFolder();