C#压缩文件夹至zip，不包含所选文件夹【转+修改】
转自园友：jimcsharp的博文C#实现Zip压缩解压实例【转】
在此基础上，对其中的压缩文件夹方法略作修正，并增加是否对父文件夹进行压缩的方法。（因为笔者有只压缩文件夹下的所有文件，却不想将选中的文件夹打入压缩文件的需求），话不多说，上代码：
其中需要依赖ICSharpCode.SharpZipLib.dll:
之后，新建一个类，代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using ICSharpCode.SharpZipLib;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Checksums; namespace Zip.Util
{
/// <summary>
/// 适用与ZIP压缩
/// </summary>
public class ZipHelper
{
#region 压缩 /// <summary>
/// 递归压缩文件夹的内部方法
/// </summary>
/// <param name="folderToZip">要压缩的文件夹路径</param>
/// <param name="zipStream">压缩输出流</param>
/// <param name="parentFolderName">此文件夹的上级文件夹</param>
/// <returns></returns>
private static bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName)
{
bool result = true;
string[] folders, files;
ZipEntry ent = null;
FileStream fs = null;
Crc32 crc = new Crc32(); try
{
ent = new ZipEntry(Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/"));
zipStream.PutNextEntry(ent);
zipStream.Flush(); files = Directory.GetFiles(folderToZip);
foreach (string file in files)
{
fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length];
fs.Read(buffer, , buffer.Length);
ent = new ZipEntry(Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file)));
ent.DateTime = DateTime.Now;
ent.Size = fs.Length; fs.Close(); crc.Reset();
crc.Update(buffer); ent.Crc = crc.Value;
zipStream.PutNextEntry(ent);
zipStream.Write(buffer, , buffer.Length);
} }
catch
{
result = false;
}
finally
{
if (fs != null)
{
fs.Close();
fs.Dispose();
}
if (ent != null)
{
ent = null;
}
GC.Collect();
GC.Collect();
} folders = Directory.GetDirectories(folderToZip);
foreach (string folder in folders)
if (!ZipDirectory(folder, zipStream, Path.GetFileName(folderToZip)))
return false; return result;
} /// <summary>
/// 私有方法，增加是否包含父文件夹方法
/// </summary>
/// <param name="folderToZip">要压缩的文件夹路径</param>
/// <param name="zipStream">压缩输出流</param>
/// <param name="ContainParent">是否包含父文件夹</param>
/// <returns></returns>
private static bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, Boolean ContainParent)
{
string[] folders, files;
ZipEntry ent = null;
FileStream fs = null;
Crc32 crc = new Crc32(); try
{ if (ContainParent)
{
ent = new ZipEntry(Path.GetFileName(folderToZip) + "/");
zipStream.PutNextEntry(ent);
zipStream.Flush();
} files = Directory.GetFiles(folderToZip);
foreach (string file in files)
{
fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length];
fs.Read(buffer, , buffer.Length); if (ContainParent)
{
ent = new ZipEntry(Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file));
}
else
{
ent = new ZipEntry(Path.GetFileName(file));
} ent.DateTime = DateTime.Now;
ent.Size = fs.Length; fs.Close(); crc.Reset();
crc.Update(buffer); ent.Crc = crc.Value;
zipStream.PutNextEntry(ent);
zipStream.Write(buffer, , buffer.Length);
} }
catch
{
return false;
}
finally
{
if (fs != null)
{
fs.Close();
fs.Dispose();
}
if (ent != null)
{
ent = null;
}
GC.Collect();
GC.Collect();
} folders = Directory.GetDirectories(folderToZip); if (ContainParent)
{
foreach (string folder in folders)
if (!ZipDirectory(folder, zipStream, Path.GetFileName(folderToZip)))
return false;
}
else
{
foreach (string folder in folders)
if (!ZipDirectory(folder, zipStream, ""))
return false;
} return true;
} /// <summary>
/// 生成Zip
/// </summary>
/// <param name="folderToZip"></param>
/// <param name="zipedFile"></param>
/// <param name="IncludeParent">是否包含父文件夹</param>
/// <returns></returns>
public static bool ZipDirectory(string folderToZip, string zipedFile, Boolean IncludeParent)
{
bool result = false;
if (!Directory.Exists(folderToZip))
return result; ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile));
zipStream.SetLevel(); result = ZipDirectory(folderToZip, zipStream, IncludeParent); zipStream.Finish();
zipStream.Close(); return result;
} /// <summary>
/// 压缩文件夹
/// </summary>
/// <param name="folderToZip">要压缩的文件夹路径</param>
/// <param name="zipedFile">压缩文件完整路径</param>
/// <param name="password">密码</param>
/// <returns>是否压缩成功</returns>
public static bool ZipDirectory(string folderToZip, string zipedFile, string password)
{
bool result = false;
if (!Directory.Exists(folderToZip))
return result; ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile));
zipStream.SetLevel();
if (!string.IsNullOrEmpty(password)) zipStream.Password = password; result = ZipDirectory(folderToZip, zipStream, ""); zipStream.Finish();
zipStream.Close(); return result;
} /// <summary>
/// 压缩文件夹
/// </summary>
/// <param name="folderToZip">要压缩的文件夹路径</param>
/// <param name="zipedFile">压缩文件完整路径</param>
/// <returns>是否压缩成功</returns>
public static bool ZipDirectory(string folderToZip, string zipedFile)
{
bool result = ZipDirectory(folderToZip, zipedFile, null);
return result;
} /// <summary>
/// 压缩文件
/// </summary>
/// <param name="fileToZip">要压缩的文件全名</param>
/// <param name="zipedFile">压缩后的文件名</param>
/// <param name="password">密码</param>
/// <returns>压缩结果</returns>
public static bool ZipFile(string fileToZip, string zipedFile, string password)
{
bool result = true;
ZipOutputStream zipStream = null;
FileStream fs = null;
ZipEntry ent = null; if (!File.Exists(fileToZip))
return false; try
{
fs = File.OpenRead(fileToZip);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, , buffer.Length);
fs.Close(); fs = File.Create(zipedFile);
zipStream = new ZipOutputStream(fs);
if (!string.IsNullOrEmpty(password)) zipStream.Password = password;
ent = new ZipEntry(Path.GetFileName(fileToZip));
zipStream.PutNextEntry(ent);
zipStream.SetLevel(); zipStream.Write(buffer, , buffer.Length); }
catch
{
result = false;
}
finally
{
if (zipStream != null)
{
zipStream.Finish();
zipStream.Close();
}
if (ent != null)
{
ent = null;
}
if (fs != null)
{
fs.Close();
fs.Dispose();
}
}
GC.Collect();
GC.Collect(); return result;
} /// <summary>
/// 压缩文件
/// </summary>
/// <param name="fileToZip">要压缩的文件全名</param>
/// <param name="zipedFile">压缩后的文件名</param>
/// <returns>压缩结果</returns>
public static bool ZipFile(string fileToZip, string zipedFile)
{
bool result = ZipFile(fileToZip, zipedFile, null);
return result;
} /// <summary>
/// 压缩文件或文件夹
/// </summary>
/// <param name="fileToZip">要压缩的路径</param>
/// <param name="zipedFile">压缩后的文件名</param>
/// <param name="password">密码</param>
/// <returns>压缩结果</returns>
public static bool Zip(string fileToZip, string zipedFile, string password)
{
bool result = false;
if (Directory.Exists(fileToZip))
result = ZipDirectory(fileToZip, zipedFile, password);
else if (File.Exists(fileToZip))
result = ZipFile(fileToZip, zipedFile, password); return result;
} /// <summary>
/// 压缩文件或文件夹
/// </summary>
/// <param name="fileToZip">要压缩的路径</param>
/// <param name="zipedFile">压缩后的文件名</param>
/// <returns>压缩结果</returns>
public static bool Zip(string fileToZip, string zipedFile)
{
bool result = Zip(fileToZip, zipedFile, null);
return result; } #endregion #region 解压 /// <summary>
/// 解压功能(解压压缩文件到指定目录)
/// </summary>
/// <param name="fileToUnZip">待解压的文件</param>
/// <param name="zipedFolder">指定解压目标目录</param>
/// <param name="password">密码</param>
/// <returns>解压结果</returns>
public static bool UnZip(string fileToUnZip, string zipedFolder, string password)
{
bool result = true;
FileStream fs = null;
ZipInputStream zipStream = null;
ZipEntry ent = null;
string fileName; if (!File.Exists(fileToUnZip))
return false; if (!Directory.Exists(zipedFolder))
Directory.CreateDirectory(zipedFolder); try
{
zipStream = new ZipInputStream(File.OpenRead(fileToUnZip));
if (!string.IsNullOrEmpty(password)) zipStream.Password = password;
while ((ent = zipStream.GetNextEntry()) != null)
{
if (!string.IsNullOrEmpty(ent.Name))
{
fileName = Path.Combine(zipedFolder, ent.Name);
fileName = fileName.Replace('/', '\\');//change by Mr.HopeGi if (fileName.EndsWith("\\"))
{
Directory.CreateDirectory(fileName);
continue;
} fs = File.Create(fileName);
int size = ;
byte[] data = new byte[size];
while (true)
{
size = zipStream.Read(data, , data.Length);
if (size > )
fs.Write(data, , data.Length);
else
break;
}
}
}
}
catch
{
result = false;
}
finally
{
if (fs != null)
{
fs.Close();
fs.Dispose();
}
if (zipStream != null)
{
zipStream.Close();
zipStream.Dispose();
}
if (ent != null)
{
ent = null;
}
GC.Collect();
GC.Collect();
}
return result;
} /// <summary>
/// 解压功能(解压压缩文件到指定目录)
/// </summary>
/// <param name="fileToUnZip">待解压的文件</param>
/// <param name="zipedFolder">指定解压目标目录</param>
/// <returns>解压结果</returns>
//public static bool UnZip(string fileToUnZip, string zipedFolder)
//{
// bool result = UnZip(fileToUnZip, zipedFolder, null);
// return result;
//} /// <summary>
/// 解压功能(解压压缩文件到指定目录)
/// </summary>
/// <param name="fileToUnZip">待解压的文件</param>
/// <param name="zipedFolder">指定解压目标目录</param>
/// <returns>解压结果</returns>
public static bool UnZip(string fileToUnZip, string zipedFolder)
{ if (Directory.Exists(zipedFolder))
{
Directory.Delete(zipedFolder, true);
}
Directory.CreateDirectory(zipedFolder);
ZipInputStream zipInputStream = new ZipInputStream(File.Open(fileToUnZip, FileMode.Open));
ZipEntry zipEntryFromZippedFile = zipInputStream.GetNextEntry();
while (zipEntryFromZippedFile != null)
{
if (zipEntryFromZippedFile.IsFile)
{
FileInfo fInfo = new FileInfo(string.Format(zipedFolder + "\\{0}", zipEntryFromZippedFile.Name));
if (!fInfo.Directory.Exists) fInfo.Directory.Create(); FileStream file = fInfo.Create();
byte[] bufferFromZip = new byte[zipInputStream.Length];
zipInputStream.Read(bufferFromZip, , bufferFromZip.Length);
file.Write(bufferFromZip, , bufferFromZip.Length);
file.Close();
}
zipEntryFromZippedFile = zipInputStream.GetNextEntry();
}
zipInputStream.Close();
return true;
} #endregion
}
}
压缩文件夹，是否包含父文件夹，调用：
public static bool ZipDirectory(string folderToZip, string zipedFile, Boolean IncludeParent) 解压缩功能我也将原方法注释了，重新找了一个方法，因为原方法在将.xml文件解压出来的时候，会在末尾加入一堆NULNULNULNUL.......，大家可以自己去尝试下。
2017.8.12补充：
解压自己的打包的压缩包报错：EOF in header.......
准备换winrar.
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