ZipOutputStream 仅压缩文件夹中的文件。我也想压缩子文件夹。我怎样才能做到这一点？
【问题讨论】：
标签： c# .net zipoutputstream
您必须递归浏览您的目录才能将所有文件添加到 zip 中。
如果您愿意，请查看这个小助手：
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Checksums;
using System.IO;
using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using System.Text.RegularExpressions;
namespace Zip
{
/// <summary>
/// Uses Sharpziplib so as to create a non flat zip archive
/// </summary>
public abstract class ZipManager
{
/// <summary>
/// will zip directory .\toto as .\toto.zip
/// </summary>
/// <param name="stDirToZip"></param>
/// <returns></returns>
public static string CreateZip(string stDirToZip)
{
try
{
DirectoryInfo di = new DirectoryInfo(stDirToZip);
string stZipPath = di.Parent.FullName + "\\" + di.Name + ".zip";
CreateZip(stZipPath, stDirToZip);
return stZipPath;
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Main method
/// </summary>
/// <param name="stZipPath">path of the archive wanted</param>
/// <param name="stDirToZip">path of the directory we want to create, without ending backslash</param>
public static void CreateZip(string stZipPath, string stDirToZip)
{
try
{
//Sanitize inputs
stDirToZip = Path.GetFullPath(stDirToZip);
stZipPath = Path.GetFullPath(stZipPath);
Console.WriteLine("Zip directory " + stDirToZip);
//Recursively parse the directory to zip
Stack<FileInfo> stackFiles = DirExplore(stDirToZip);
ZipOutputStream zipOutput = null;
if (File.Exists(stZipPath))
File.Delete(stZipPath);
Crc32 crc = new Crc32();
zipOutput = new ZipOutputStream(File.Create(stZipPath));
zipOutput.SetLevel(6); // 0 - store only to 9 - means best compression
Console.WriteLine(stackFiles.Count + " files to zip.\n");
int index = 0;
foreach (FileInfo fi in stackFiles)
{
++index;
int percent = (int)((float)index / ((float)stackFiles.Count / 100));
if (percent % 1 == 0)
{
Console.CursorLeft = 0;
Console.Write(_stSchon[index % _stSchon.Length].ToString() + " " + percent + "% done.");
}
FileStream fs = File.OpenRead(fi.FullName);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
//Create the right arborescence within the archive
string stFileName = fi.FullName.Remove(0, stDirToZip.Length + 1);
ZipEntry entry = new ZipEntry(stFileName);
entry.DateTime = DateTime.Now;
// set Size and the crc, because the information
// about the size and crc should be stored in the header
// if it is not set it is automatically written in the footer.
// (in this case size == crc == -1 in the header)
// Some ZIP programs have problems with zip files that don't store
// the size and crc in the header.
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
zipOutput.PutNextEntry(entry);
zipOutput.Write(buffer, 0, buffer.Length);
}
zipOutput.Finish();
zipOutput.Close();
zipOutput = null;
}
catch (Exception)
{
throw;
}
}
static private Stack<FileInfo> DirExplore(string stSrcDirPath)
{
try
{
Stack<DirectoryInfo> stackDirs = new Stack<DirectoryInfo>();
Stack<FileInfo> stackPaths = new Stack<FileInfo>();
DirectoryInfo dd = new DirectoryInfo(Path.GetFullPath(stSrcDirPath));
stackDirs.Push(dd);
while (stackDirs.Count > 0)
{
DirectoryInfo currentDir = (DirectoryInfo)stackDirs.Pop();
try
{
//Process .\files
foreach (FileInfo fileInfo in currentDir.GetFiles())
{
stackPaths.Push(fileInfo);
}
//Process Subdirectories
foreach (DirectoryInfo diNext in currentDir.GetDirectories())
stackDirs.Push(diNext);
}
catch (Exception)
{//Might be a system directory
}
}
return stackPaths;
}
catch (Exception)
{
throw;
}
}
private static char[] _stSchon = new char[] { '-', '\\', '|', '/' };
}
}
【讨论】：
public static void ZipDirectoryKeepRelativeSubfolder(string zipFilePath, string directoryToZip)
{
var filenames = Directory.GetFiles(directoryToZip, "*.*", SearchOption.AllDirectories);
using (var s = new ZipOutputStream(File.Create(zipFilePath)))
{
s.SetLevel(9);// 0 - store only to 9 - means best compression
var buffer = new byte[4096];
foreach (var file in filenames)
{
var relativePath = file.Substring(directoryToZip.Length).TrimStart('\\');
var entry = new ZipEntry(relativePath);
entry.DateTime = DateTime.Now;
s.PutNextEntry(entry);
using (var fs = File.OpenRead(file))
{
int sourceBytes;
do
{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
s.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
}
}
s.Finish();
s.Close();
}
}
【讨论】：
C# MVP Peter Bromberg 的这篇文章可能会解决您的问题：Zip / Unzip folders and files with C#。它有完整的代码和一个示例项目。
【讨论】：
我刚刚偶然发现的替代（更方便）解决方案：
使用SevenZipSharp 项目
var compressor = new SevenZipCompressor();
compressor.ArchiveFormat = OutArchiveFormat.SevenZip;
compressor.CompressionLevel = CompressionLevel.High;
compressor.CompressionMode = CompressionMode.Create;
compressor.PreserveDirectoryRoot = false;
compressor.FastCompression = true;
compressor.CompressDirectory(dir.FullName, zipFile.FullName);
【讨论】：