在企业开发过程中经常会遇到文件的压缩与解压,虽然网上很多流行的压缩文件格式都是RAR的,但是由于RAR不是一个开放的标准,因此ZIP成了更多人的选择。如果你不想自己开发的话可以选择开源的项目,比如SharpZipLib就是一个不错的选择。
在企业开发过程中经常会遇到文件的压缩与解压,虽然网上很多流行的压缩文件格式都是RAR的,但是由于RAR不是一个开放的标准,因此ZIP成了更多人的选择。如果你不想自己开发的话可以选择开源的项目,比如SharpZipLib就是一个不错的选择。
组件的使用比较简单,请参照下面的代码。点击下载项目源码
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/**//*
* Gary Zhang -- cbcye@live.com
* www.cbcye.com
* www.quicklearn.cn
* cbcye.cnblogs.com
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using ICSharpCode.SharpZipLib.Zip;
using System.Diagnostics;
using ICSharpCode.SharpZipLib.Core;
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namespace TestConsole
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{
class Program
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{
static void Main()
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{
//CreateZipFile(@"d:\", @"d:\a.zip");
UnZipFile(@"d:\a.zip");
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Console.Read();
}
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private static void CreateZipFile(string filesPath, string zipFilePath)
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{
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if (!Directory.Exists(filesPath))
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{
Console.WriteLine("Cannot find directory '{0}'", filesPath);
return;
}
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try
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{
string[] filenames = Directory.GetFiles(filesPath);
using (ZipOutputStream s = new ZipOutputStream(File.Create(zipFilePath)))
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{
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s.SetLevel(9); // 压缩级别 0-9
//s.Password = "123"; //Zip压缩文件密码
byte[] buffer = new byte[4096]; //缓冲区大小
foreach (string file in filenames)
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{
ZipEntry entry = new ZipEntry(Path.GetFileName(file));
entry.DateTime = DateTime.Now;
s.PutNextEntry(entry);
using (FileStream fs = File.OpenRead(file))
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{
int sourceBytes;
do
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{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
s.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
}
}
s.Finish();
s.Close();
}
}
catch (Exception ex)
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{
Console.WriteLine("Exception during processing {0}", ex);
}
}
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private static void UnZipFile( string zipFilePath)
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{
if (!File.Exists(zipFilePath))
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{
Console.WriteLine("Cannot find file '{0}'", zipFilePath);
return;
}
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using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
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{
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ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
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{
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Console.WriteLine(theEntry.Name);
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string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
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// create directory
if (directoryName.Length > 0)
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{
Directory.CreateDirectory(directoryName);
}
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if (fileName != String.Empty)
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{
using (FileStream streamWriter = File.Create(theEntry.Name))
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{
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int size = 2048;
byte[] data = new byte[2048];
while (true)
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{
size = s.Read(data, 0, data.Length);
if (size > 0)
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{
streamWriter.Write(data, 0, size);
}
else
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{
break;
}
}
}
}
}
}
}
}
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}
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