压缩文件夹 源码如下
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI; using System.IO; using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.GZip; /// /// ZipFloClass 的摘要说明
/// public class ZipFloClass
{
public void ZipFile(string strFile, string strZip)
{
if (strFile[strFile.Length - ] != Path.DirectorySeparatorChar)
strFile += Path.DirectorySeparatorChar;
ZipOutputStream s = new ZipOutputStream(File.Create(strZip));
s.SetLevel(); // 0 - store only to 9 - means best compression
zip(strFile, s, strFile);
s.Finish();
s.Close();
} private void zip(string strFile, ZipOutputStream s, string staticFile)
{
if (strFile[strFile.Length - ] != Path.DirectorySeparatorChar) strFile += Path.DirectorySeparatorChar;
Crc32 crc = new Crc32();
string[] filenames = Directory.GetFileSystemEntries(strFile);
foreach (string file in filenames)
{ if (Directory.Exists(file))
{
zip(file, s, staticFile);
} else // 否则直接压缩文件
{
//打开压缩文件
FileStream fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length];
fs.Read(buffer, , buffer.Length);
string tempfile = file.Substring(staticFile.LastIndexOf("\\") + );
ZipEntry entry = new ZipEntry(tempfile); entry.DateTime = DateTime.Now;
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry); s.Write(buffer, , buffer.Length);
}
}
} } 解压文件夹 using System;
using System.Data;
using System.Web;
using System.Text;
using System.Collections;
using System.IO;
using System.Diagnostics;
using System.Runtime.Serialization.Formatters.Binary; using ICSharpCode.SharpZipLib.BZip2;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Zip.Compression;
using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
using ICSharpCode.SharpZipLib.GZip;
using ICSharpCode.SharpZipLib.Checksums; /// /// UnZipFloClass 的摘要说明
/// public class UnZipFloClass
{
public string unZipFile(string TargetFile, string fileDir)
{
string rootFile = " ";
try
{
//读取压缩文件(zip文件),准备解压缩
ZipInputStream s = new ZipInputStream(File.OpenRead(TargetFile.Trim()));
ZipEntry theEntry;
string path = fileDir;
//解压出来的文件保存的路径 string rootDir = " ";
//根目录下的第一个子文件夹的名称
while ((theEntry = s.GetNextEntry()) != null)
{
rootDir = Path.GetDirectoryName(theEntry.Name);
//得到根目录下的第一级子文件夹的名称
if (rootDir.IndexOf("\\") >= )
{
rootDir = rootDir.Substring(, rootDir.IndexOf("\\") + );
}
string dir = Path.GetDirectoryName(theEntry.Name);
//根目录下的第一级子文件夹的下的文件夹的名称
string fileName = Path.GetFileName(theEntry.Name);
//根目录下的文件名称
if (dir != " " )
//创建根目录下的子文件夹,不限制级别
{
if (!Directory.Exists(fileDir + "\\" + dir))
{
path = fileDir + "\\" + dir;
//在指定的路径创建文件夹
Directory.CreateDirectory(path);
}
}
else if (dir == " " && fileName != "")
//根目录下的文件
{
path = fileDir;
rootFile = fileName;
}
else if (dir != " " && fileName != "")
//根目录下的第一级子文件夹下的文件
{
if (dir.IndexOf("\\") > )
//指定文件保存的路径
{
path = fileDir + "\\" + dir;
}
} if (dir == rootDir)
//判断是不是需要保存在根目录下的文件
{
path = fileDir + "\\" + rootDir;
} //以下为解压缩zip文件的基本步骤
//基本思路就是遍历压缩文件里的所有文件,创建一个相同的文件。
if (fileName != String.Empty)
{
FileStream streamWriter = File.Create(path + "\\" + fileName); int size = ;
byte[] data = new byte[];
while (true)
{
size = s.Read(data, , data.Length);
if (size > )
{
streamWriter.Write(data, , size);
}
else
{
break;
}
} streamWriter.Close();
}
}
s.Close(); return rootFile;
}
catch (Exception ex)
{
return "1; " + ex.Message;
}
}
}
调用：
/// <summary>
/// 压缩
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
string[] FileProperties = new string[];
FileProperties[] = "D:\\Debug\\";//待压缩文件目录
//Debug2=>目录必须存在(可以改进程序)
FileProperties[] = "D:\\Debug2\\a.zip"; //压缩后的目标文件
ZipFloClass Zc = new ZipFloClass();
Zc.ZipFile(FileProperties[], FileProperties[]);
} /// <summary>
/// 解压
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
string[] FileProperties = new string[];
FileProperties[] = "D:\\Debug2\\a.zip";//待解压的文件
//=>Debug3目录可以不用存在
FileProperties[] = "D:\\Debug3\\";//解压后放置的目标目录
UnZipFloClass UnZc = new UnZipFloClass();
UnZc.unZipFile(FileProperties[], FileProperties[]);
}
ICSharpCode.SharpZipLib.dll下载原文地址：http://www.cnblogs.com/zfanlong1314/p/4202695.htmlPS.补充RAR解压 2018-8-18
SharpCompress的C#框架被开源，您可以在搜索引擎中找到SharpCompress框架的开源代码，它支持：rar 7zip, zip, tar, tzip和bzip2格式的压缩和解压，下面的示例直接从rar格式文件读取并解压文件。
using (Stream stream = File.OpenRead(@"C:\Code\sharpcompress.rar"))
{
var reader = ReaderFactory.Open(stream);
while (reader.MoveToNextEntry())
{
if (!reader.Entry.IsDirectory)
{
reader.WriteEntryToDirectory(@"C:\temp");
}
}
}
