C#实现多级子目录Zip压缩解压实例

1. public?void?ZipDirectoryTest()???
2. {???
3. string?path?=?System.IO.Path.Combine(System.IO.Path.GetTempPath(),?DateTime.Now.Ticks.ToString());???
4. foreach?(string?sub?in?new?string[]?{?"bin",?"release",?"test",?"test\\bin",?""?})???
5. {???
6. string?subPath?=?System.IO.Path.Combine(path,?sub);???
7. if?(!System.IO.Directory.Exists(subPath))???
8. System.IO.Directory.CreateDirectory(subPath);???
9. System.IO.File.WriteAllText(System.IO.Path.Combine(subPath,?"1.cs"),?"");???
10. System.IO.File.WriteAllText(System.IO.Path.Combine(subPath,?"1.txt"),?"");???
11. System.IO.File.WriteAllText(System.IO.Path.Combine(subPath,?"1.html"),?"");???
12. System.IO.File.WriteAllText(System.IO.Path.Combine(subPath,?"1.bin"),?"");???
13. ??? ?
14. }???
15. Console.WriteLine(path);???
16. ??? ?
17. new?ZipHelper().ZipDirectory(path,?"e:\\temp\\tt.zip",false);???
18. ZipHelper.UnZip("e:\\temp\\tt.zip",?"e:\\temp\\tt2");???
19. //System.IO.Directory.Delete(path,?true);???
20. //Q.Helper.FileHelper.SelectFile(path);???
21. }??

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using ICSharpCode.SharpZipLib;

using ICSharpCode.SharpZipLib.Zip;

#if NETSTANDARD2_0

using ICSharpCode.SharpZipLib.Checksum;

#else

using ICSharpCode.SharpZipLib.Checksums;

#endif

? ?

namespace Q.Helper.Zip

{

? ?

/// <summary>

/// 适用与ZIP压缩

/// </summary>

public class ZipHelper

{

public int Level

{

get; set;

}

#region 压缩

? ?

/// <summary>

/// 递归压缩文件夹的内部方法(排除相对路径)

/// </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>

/// <param name="includeFloderName">是否包含目录名</param>

/// <returns></returns>

private bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName, bool createBaseFolder = true)

{

folderToZip = folderToZip.Replace("\\", "/");

bool result = true;

string[] folders, files;

ZipEntry ent = null;

FileStream fs = null;

Crc32 crc = new Crc32();

? ?

try

{

string entPath = Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/").Replace("\\", "/");

if (!createBaseFolder)

entPath = entPath.Substring(entPath.IndexOf("/") + 1);

if (!string.IsNullOrEmpty(entPath))

{

ent = new ZipEntry(entPath);

Console.WriteLine(entPath);

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, 0, buffer.Length);

entPath = Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file)).Replace("\\", "/");

if (!createBaseFolder)

entPath = entPath.Substring(entPath.IndexOf("/") + 1);

Console.WriteLine(entPath);

ent = new ZipEntry(entPath);

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, 0, buffer.Length);

}

? ?

}

catch (Exception ex)

{

result = false;

throw ex;

}

finally

{

if (fs != null)

{

fs.Close();

fs.Dispose();

}

if (ent != null)

{

ent = null;

}

GC.Collect();

GC.Collect(1);

}

? ?

folders = Directory.GetDirectories(folderToZip);

//多级递归时需要记住相对目录

foreach (string folder in folders)

{

if (!ZipDirectory(folder, zipStream, Path.Combine(parentFolderName, Path.GetFileName(folderToZip)), createBaseFolder))

return false;

}

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 bool ZipDirectory(string folderToZip, string zipedFile, string password, bool includeFloderName = true)

{

bool result = false;

if (!Directory.Exists(folderToZip))

return result;

? ?

ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile));

zipStream.SetLevel(Level);

if (!string.IsNullOrEmpty(password)) zipStream.Password = password;

? ?

result = ZipDirectory(folderToZip, zipStream, "", includeFloderName);

? ?

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 bool ZipDirectory(string folderToZip, string zipedFile, bool includeFloderName = true)

{

bool result = ZipDirectory(folderToZip, zipedFile, "", includeFloderName);

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 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, 0, 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(Level);

? ?

zipStream.Write(buffer, 0, 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(1);

? ?

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 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 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 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;

? ?

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;

}

using (FileStream fs = File.Create(fileName))

{

int size = 2048;

byte[] data = new byte[size];

while (true)

{

? ?

size = zipStream.Read(data, 0, data.Length);

if (size > 0)

fs.Write(data, 0, data.Length);

else

break;

}

fs.Flush();

? ?

fs.Close();

new FileInfo(fileName).LastWriteTime = ent.DateTime;

}

? ?

}

}

}

catch

{

result = false;

}

finally

{

? ?

if (zipStream != null)

{

zipStream.Close();

zipStream.Dispose();

}

if (ent != null)

{

ent = null;

}

GC.Collect();

GC.Collect(1);

}

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;

}

? ?

#endregion

}

}