如何从C＃.NET 4.5中的zip存档中只提取特定目录？

问题描述

我有包含以下内部结构的zip文件：

I have zip file with following internal structure:

file1.txt
directoryABC
    fileA.txt
    fileB.txt
    fileC.txt

将文件从directoryABC文件夹提取到硬盘驱动器上的目标位置？例如，如果目标位置是C：\temp，则其内容应为：

What would be the best way to extract files from "directoryABC" folder to a target location on hard drive? For example if target location is "C:\temp" then its content should be:

temp
    directoryABC
        fileA.txt
        fileB.txt
        fileC.txt

在某些情况下，我只想提取directoryABC的内容，结果是：

Also in certain situations I'd want to extract only content of the "directoryABC" so the result would be:

temp
    fileA.txt
    fileB.txt
    fileC.txt

我如何使用C＃.NET 4.5中的System.IO.Compression类实现这一点。

How can I accomplish this by using classes from System.IO.Compression in C# .NET 4.5?

推荐答案

的命名目录到目标目录...

This is another version to extract the files of a named directory to the target directory...

class Program
{
    static object lockObj = new object();

    static void Main(string[] args)
    {
        string zipPath = @"C:\Temp\Test\Test.zip";
        string extractPath = @"c:\Temp\xxx";
        string directory = "testabc";
        using (ZipArchive archive = ZipFile.OpenRead(zipPath))
        {
            var result = from currEntry in archive.Entries
                         where Path.GetDirectoryName(currEntry.FullName) == directory
                         where !String.IsNullOrEmpty(currEntry.Name)
                         select currEntry;


            foreach (ZipArchiveEntry entry in result)
            {
                entry.ExtractToFile(Path.Combine(extractPath, entry.Name));
            }
        }
    }
}

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