如何使用 C# .NET 4.5 将文件从 ZIP 存档读取到内存而不先将其解压缩到文件? [英] How to read file from ZIP archive to memory without extracting it to file first, by using C# .NET 4.5?

问题描述

.NET Framework 4.5 通过System.IO.Compression 中的类添加了对 ZIP 文件的支持.

.NET Framework 4.5 added support for ZIP files via classes in System.IO.Compression.

假设我有 .ZIP 存档，其根目录中有 sample.xml 文件.我想直接从存档读取此文件到内存流，然后将其反序列化为自定义 .NET 对象.这样做的最佳方法是什么?

Let's say I have .ZIP archive that has sample.xml file in the root. I want to read this file directly from archive to memory stream and then deserialize it to a custom .NET object. What is the best way to do this?

推荐答案

改编自 ZipArchive 和 XmlSerializer.Deserialize() 手册页.

Adapted from the ZipArchive and XmlSerializer.Deserialize() manual pages.

ZipArchiveEntry 类有一个 Open() 方法，该方法将流返回到文件.

The ZipArchiveEntry class has an Open() method, which returns a stream to the file.

string zipPath = @"c:\example\start.zip";

using (ZipArchive archive = ZipFile.OpenRead(zipPath))
{
    var sample = archive.GetEntry("sample.xml");
    if (sample != null)
    {
        using (var zipEntryStream = sample.Open())
        {               
            XmlSerializer serializer = new XmlSerializer(typeof(SampleClass));  

            SampleClass deserialized = 
                (SampleClass)serializer.Deserialize(zipEntryStream);
        }
    }
} 

请注意，如 MSDN 上所述，您需要添加对 .NET 程序集 System.IO.Compression.FileSystem 的引用，以便使用 ZipFile 类.

Note that, as documented on MSDN, you need to add a reference to the .NET assembly System.IO.Compression.FileSystem in order to use the ZipFile class.

这篇关于如何使用 C# .NET 4.5 将文件从 ZIP 存档读取到内存而不先将其解压缩到文件?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！