Csharp 利用ICSharpCode.SharpZipLib解壓文件
/*
*http://www.koders.com/csharp/fid7241B3C8598C20BA18652B5BB5C19D220988E2D4.aspx?s=file
* http://www.icsharpcode.net/OpenSource/SharpZipLib/Download.aspx
* http://www.eggheadcafe.com/tutorials/aspnet/9ce6c242-c14c-4969-9251-af95e4cf320f/zip--unzip-folders-and-f.aspx
* http://www.eggheadcafe.com/community/csharp/2/10060149/zip-a-file-using-icsharpcodesharpziplibzip.aspx
* http://www.eggheadcafe.com/tutorials/csharp/9ce6c242-c14c-4969-9251-af95e4cf320f/zip--unzip-folders-and-files-with-c.aspx
*
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.GZip;
using System.IO;
using System.Collections;
using System.Windows;
namespace CompressFolders
{
/// <summary>
/// 20120530
/// 涂聚文 Geovin Du
/// </summary>
public partial class Form1 : Form
{
string strBaseDir = "";
/// <summary>
///
/// </summary>
public Form1()
{
InitializeComponent();
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form1_Load(object sender, EventArgs e)
{
//指定文件
//this.saveFileDialog1.Filter = "压缩文件(zip)|*.zip";
//this.saveFileDialog1.Title = "保存文件";
//this.saveFileDialog1.FileName = "数据备份";
//this.saveFileDialog1.InitialDirectory =Application.StartupPath;
//this.saveFileDialog1.RestoreDirectory = true;
//string Fname = "";
//if (this.saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
//{
// string[] filenames ={ "Properties", "Form1.resx", "frmMain.Designer.cs", "Program.cs", "Form1.Designer.cs", "Form1.resx", "frmMain.cs" };//可以自己定义所压缩的文件
// Fname = this.saveFileDialog1.FileName;
// ZipOutputStream s = new ZipOutputStream(File.Create(Fname));//创建压缩文件的目录及名称
// s.Password = "geovindu";//设置压缩文件的密码
// s.SetLevel(6);// 0 - store only to 9 - means best compression
// foreach (string file in filenames)
// {
// if (Directory.Exists(Application.StartupPath + @"/" + file))
// {
// strBaseDir = Application.StartupPath + @"/" + file + @"/";//压缩文件夹
// addZipEntry(strBaseDir, s);
// }
// else
// {
// FileStream fs = File.OpenRead(Application.StartupPath + @"/" + file);//打开文件读取
// byte[] buffer = new byte[fs.Length];
// fs.Read(buffer, 0, buffer.Length);
// string strEntryName = file;
// ZipEntry entry = new ZipEntry(strEntryName);
// s.PutNextEntry(entry);
// s.Write(buffer, 0, buffer.Length);
// fs.Close();
// }
// }
// s.Finish();
// s.Close();
//}
}
/// <summary>
/// 壓縮文件夾
/// </summary>
/// <param name="PathStr"></param>
/// <param name="s"></param>
private void addZipEntry(string PathStr, ZipOutputStream s)
{
DirectoryInfo di = new DirectoryInfo(PathStr);
foreach (DirectoryInfo item in di.GetDirectories())
{
addZipEntry(item.FullName, s);
}
foreach (FileInfo item in di.GetFiles())
{
if (item.FullName.Replace(strBaseDir, "") != "Thumbs.db")
{
FileStream fs = File.OpenRead(item.FullName);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
string strEntryName = item.FullName.Replace(strBaseDir, "");
strEntryName = @"Properties/" + strEntryName;
ZipEntry entry = new ZipEntry(strEntryName);
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
fs.Close();
}
}
}
/// <summary>
/// 解压缩
/// </summary>
/// <param name="zipfile"></param>
/// <param name="directory"></param>
private void Unzip(string zipfile, string directory)
{
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
ZipInputStream zis = new ZipInputStream(File.OpenRead(zipfile));
string str = zis.Password;
zis.Password = "塗聚文";
ZipEntry theEntry = null;
while ((theEntry = zis.GetNextEntry()) != null)
{
ZipConstants.DefaultCodePage = 936;
string directoryName = Path.GetDirectoryName(theEntry.Name);//directoryName=null
string fileName = Path.GetFileName(theEntry.Name);
if (directoryName != string.Empty)
{
if ((directoryName == "Properties") && (!Directory.Exists(directory + @"/" + directoryName)))
{
Directory.CreateDirectory(directory + @"/" + directoryName);
}
}
if (fileName != string.Empty)
{
FileStream streamWriter = File.Create(Path.Combine(directory, theEntry.Name));
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = zis.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
streamWriter.Close();
}
}
zis.Close();
}
/// <summary>
///壓縮 100M大文件進程不行
/// 塗聚文 Geovin Du
/// </summary>
/// <param name="inputFolderPath"></param>
/// <param name="outputPathAndFile"></param>
/// <param name="password"></param>
public static void ZipFiles(string inputFolderPath, string outputPathAndFile, string password)
{
ArrayList ar = GenerateFileList(inputFolderPath); // generate file list
int TrimLength = (Directory.GetParent(inputFolderPath)).ToString().Length;
// find number of chars to remove // from orginal file path
TrimLength += 1; //remove '\'
FileStream ostream;
byte[] obuffer;
string outPath = inputFolderPath + @"\" + outputPathAndFile;
ZipOutputStream oZipStream = new ZipOutputStream(File.Create(outPath)); // create zip stream
if (password != null && password != String.Empty)
oZipStream.Password = password;
oZipStream.SetLevel(9); // maximum compression
ZipEntry oZipEntry;
foreach (string Fil in ar) // for each file, generate a zipentry
{
oZipEntry = new ZipEntry(Fil.Remove(0, TrimLength));
oZipStream.PutNextEntry(oZipEntry);
if (!Fil.EndsWith(@"/")) // if a file ends with '/' its a directory
{
ostream = File.OpenRead(Fil);
obuffer = new byte[ostream.Length];
ostream.Read(obuffer, 0, obuffer.Length);
oZipStream.Write(obuffer, 0, obuffer.Length);
}
}
oZipStream.Finish();
oZipStream.Close();
}
/// <summary>
///
/// </summary>
/// <param name="Dir"></param>
/// <returns></returns>
public static ArrayList GenerateFileList(string Dir)
{
ArrayList fils = new ArrayList();
bool Empty = true;
foreach (string file in Directory.GetFiles(Dir)) // add each file in directory
{
fils.Add(file);
Empty = false;
}
if (Empty)
{
if (Directory.GetDirectories(Dir).Length == 0)
// if directory is completely empty, add it
{
fils.Add(Dir + @"/");
}
}
foreach (string dirs in Directory.GetDirectories(Dir)) // recursive
{
foreach (object obj in GenerateFileList(dirs))
{
fils.Add(obj);
}
}
return fils; // return file list
}
/// <summary>
/// 打開選擇文件夾
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOpen_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
if (fbd.ShowDialog() == DialogResult.OK)
{
//MessageBox.Show(fbd.SelectedPath);
this.textBox1.Text = fbd.SelectedPath;
}
}
/// <summary>
/// 保存
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonSave_Click(object sender, EventArgs e)
{
ZipFiles(this.textBox1.Text.Trim(), this.textBox2.Text.Trim(), "geovindu");
}
/// <summary>
/// 選擇文件夾
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
if (fbd.ShowDialog() == DialogResult.OK)
{
//MessageBox.Show(fbd.SelectedPath);
this.textBox2.Text = fbd.SelectedPath;
}
}
}
}
還可以用其他方法壓縮或解壓方法：
可以引用：
using System.IO; using System.IO.Compression; // 此方法也可以壓縮或解壓，GZipStream() 不能用第三方解壓 using Shell32;//Microsoft Shell Controls And Automation //此方法也是可以 using System.Threading; using System.Runtime.InteropServices; //using java.io;//此方法也是可以 //using java.util;//WINDOWS\Microsoft.NET\Framework\v2.0.50727\vjslib.dll //using java.util.zip;
以上都寫過測試程序通過（2012-08-25）。Shell大文件夾也可以。