blocks|key|1723919|text|MSDN有一个完整的使用ZipPackage类的example+http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx。需要.NET+3.5。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1723920|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx|1^0|O|7|0|W|23|1|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@$A|N|B|O|1|P]|$A|Q|B|R|1|S]]|C|$]]|$1|D|3|-4|5|6|7|T|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|K]]]]

MSDN has a complete <a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx" rel="noreferrer">example</a> <a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx</a> using the ZipPackage class. Requires .NET 3.5.

blocks|key|1723996|text|戴夫，太棒了！我不知道里面有这个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1723997|现在我知道要查找什么了，我找到了一篇文章，其中包含一个关于如何使用它的小代码示例：http://weblogs.asp.net/jgalloway/archive/2007/10/25/creating-zip-archives-in-net-without-an-external-library-like-sharpziplib.aspx|offset|length|1723998|在相关的注释中，我还发现DotNetZip+project看起来非常容易使用。|1723999|entityMap|0|LINK|mutability|MUTABLE|url|http://weblogs.asp.net/jgalloway/archive/2007/10/25/creating-zip-archives-in-net-without-an-external-library-like-sharpziplib.aspx|1|http://www.codeplex.com/DotNetZip^0|0|15|3M|0|0|C|H|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]|P|$5|K|L|M|A|$N|Q]]]]

Dave, very nice!! I didn't know that was in there.

Now that I know what to look for, I was able to find an article with a small code sample on how to use it:
<a href="http://weblogs.asp.net/jgalloway/archive/2007/10/25/creating-zip-archives-in-net-without-an-external-library-like-sharpziplib.aspx" rel="noreferrer">http://weblogs.asp.net/jgalloway/archive/2007/10/25/creating-zip-archives-in-net-without-an-external-library-like-sharpziplib.aspx</a>

On a related note, I also found the <a href="http://www.codeplex.com/DotNetZip" rel="noreferrer">DotNetZip project</a> that looks extremely easy to use.

blocks|key|1724022|text|.NET+Framework+Zip+/+UnZip+Tool+Using+the+Packaging+Namespace|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1724023|entityMap|0|LINK|mutability|MUTABLE|url|http://www.codeproject.com/KB/files/ZipUnZipTool.aspx^0|0|1P|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://www.codeproject.com/KB/files/ZipUnZipTool.aspx" rel="nofollow noreferrer">.NET Framework Zip / UnZip Tool Using the Packaging Namespace</a>

blocks|key|1509055|text|是的，我以前也用过。我对DataSet进行了一次子类化，以支持将自身持久化到文件中(通过ReadXML/WriteXML方法)。作为额外的好处，如果需要的话，我决定允许对其进行可选的压缩(正如您所知道的，这对于像XML这样的文本数据非常有效)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1509056|我使用了GZipStream类(我当时的理解是相关的DeflateStream仅仅是没有头信息的GZip，或者诸如此类的东西--我相信有人可以纠正我的错误)。它的工作原理非常简单，只需将其打包到另一个流的顶部，这样您就可以使用GZipStream来代替它。在我的例子中，它是搭载在FileStream上的。|1509057|给定一个用myDataSet.WriteXML()的输出填充的MemoryStream，我做了如下操作：|style|CODE|1509058|if+(CompressData)
{
++++//+Write+to+memory
++++mStream+=+new+MemoryStream();
++++Save(mStream);
++++mStream.Seek(0,+SeekOrigin.Begin);

++++//+Filter+that+through+a+GZipStream+and+then+to+file
++++fStream+=+new+FileStream(Path.Combine(CacheFilePath,+FileName+%2B+".gz"),
+++++++++++++++++++++++++++++FileMode.OpenOrCreate);
++++zipStream+=+new+GZipStream(fStream,+CompressionMode.Compress,+true);

++++Pump(mStream,+zipStream);
}
else
{
++++//+Write+straight+to+file
++++fStream+=+new+FileStream(Path.Combine(CacheFilePath,+FileName),
+++++++++++++++++++++++++++++FileMode.OpenOrCreate);
++++Save(fStream);
}|code-block|syntax|javascript|1509059|其中，Save()和Pump()是如下所示的简单方法：|1509060|private+void+Pump(Stream+input,+Stream+output)
{
++++int+n;
++++byte[]+bytes+=+new+byte[4096];+//+4KiB+at+a+time

++++while+((n+=+input.Read(bytes,+0,+bytes.Length))+!=+0)
++++{
++++++++output.Write(bytes,+0,+n);
++++}
}

public+void+Save(Stream+stream)
{
++++AcceptChanges();

++++WriteXml(stream,+XmlWriteMode.WriteSchema);
}|1509061|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.data.dataset.aspx|1|http://msdn.microsoft.com/en-us/library/system.data.dataset.readxml.aspx|2|http://msdn.microsoft.com/en-us/library/system.data.dataset.writexml.aspx|3|http://msdn.microsoft.com/en-us/library/system.io.compression.gzipstream.aspx|4|http://msdn.microsoft.com/en-us/library/system.io.compression.deflatestream.aspx|5|http://msdn.microsoft.com/en-us/library/system.io.memorystream.aspx^0|C|7|0|18|7|1|1G|8|2|0|4|A|3|Q|D|4|0|5|K|V|C|5|0|0|3|6|A|6|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]|$A|1E|B|1F|1|1G]|$A|1H|B|1I|1|1J]]|C|$]]|$1|D|3|E|5|6|7|1K|8|@]|9|@$A|1L|B|1M|1|1N]|$A|1O|B|1P|1|1Q]]|C|$]]|$1|F|3|G|5|6|7|1R|8|@$A|1S|B|1T|H|I]]|9|@$A|1U|B|1V|1|1W]]|C|$]]|$1|J|3|K|5|L|7|1X|8|@]|9|@]|C|$M|N]]|$1|O|3|P|5|6|7|1Y|8|@$A|1Z|B|20|H|I]|$A|21|B|22|H|I]]|9|@]|C|$]]|$1|Q|3|R|5|L|7|23|8|@]|9|@]|C|$M|N]]|$1|S|3|-4|5|6|7|24|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|V|W|X|C|$Y|11]]|12|$5|V|W|X|C|$Y|13]]|14|$5|V|W|X|C|$Y|15]]|16|$5|V|W|X|C|$Y|17]]|18|$5|V|W|X|C|$Y|19]]]]

Yes, I've used it in the past. I sub-classed <a href="http://msdn.microsoft.com/en-us/library/system.data.dataset.aspx" rel="nofollow noreferrer">DataSet</a> once to support persisting itself out to a file (via the <a href="http://msdn.microsoft.com/en-us/library/system.data.dataset.readxml.aspx" rel="nofollow noreferrer">ReadXML</a>/<a href="http://msdn.microsoft.com/en-us/library/system.data.dataset.writexml.aspx" rel="nofollow noreferrer">WriteXML</a> method). As an added bonus, I decided to allow it to be, optionally, compressed if desired (this, as you all should already know, is extremely effective with textual data like XML).

I used the <a href="http://msdn.microsoft.com/en-us/library/system.io.compression.gzipstream.aspx" rel="nofollow noreferrer">GZipStream</a> class (it was my understanding at the time that the related <a href="http://msdn.microsoft.com/en-us/library/system.io.compression.deflatestream.aspx" rel="nofollow noreferrer">DeflateStream</a> was merely GZip without header information, or some such &mdash; I'm sure someone could correct me on this). It works quite simply by piggy-backing on top of another stream and thus you then use the GZipStream in its place. In my case, it was piggy-backing on a FileStream.

Given a <a href="http://msdn.microsoft.com/en-us/library/system.io.memorystream.aspx" rel="nofollow noreferrer">MemoryStream</a> to be filled with the output of <code>myDataSet.WriteXML()</code>, I did something like the following:

<pre><code>if (CompressData)
{
 // Write to memory
 mStream = new MemoryStream();
 Save(mStream);
 mStream.Seek(0, SeekOrigin.Begin);

 // Filter that through a GZipStream and then to file
 fStream = new FileStream(Path.Combine(CacheFilePath, FileName + ".gz"),
 FileMode.OpenOrCreate);
 zipStream = new GZipStream(fStream, CompressionMode.Compress, true);

 Pump(mStream, zipStream);
}
else
{
 // Write straight to file
 fStream = new FileStream(Path.Combine(CacheFilePath, FileName),
 FileMode.OpenOrCreate);
 Save(fStream);
}
</code></pre>

Where <code>Save()</code> and <code>Pump()</code> are simple methods like the following:

<pre><code>private void Pump(Stream input, Stream output)
{
 int n;
 byte[] bytes = new byte[4096]; // 4KiB at a time

 while ((n = input.Read(bytes, 0, bytes.Length)) != 0)
 {
 output.Write(bytes, 0, n);
 }
}

public void Save(Stream stream)
{
 AcceptChanges();

 WriteXml(stream, XmlWriteMode.WriteSchema);
}
</code></pre>

blocks|key|1509127|text|您将希望使用第三方库，如http://www.codeplex.com/DotNetZip，而不是尝试使用GZipStream或DeflateStream读取压缩文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1509128|.NET中的*Stream类可以让您读取或写入压缩的字节流。这些类不读或写zip文件。zip文件是由“信封”或报头包围的压缩数据。可以把它看作是元数据--它包括文件名、时间戳、CRC和其他一堆东西。**Stream类只产生压缩数据流，不知道如何产生或消费元数据，这在PKWare维护的PKZip格式规范中有描述。|1509129|像DotNetZip这样的第三方库处理ZIP存档中的元数据。它们可能使用也可能不使用System.IO.Compression.DeflateStream()类来生成压缩字节流。例如，在以前的版本中，DotNetZip使用内置的DeflateStream。从v1.7开始，DotNetZip包含了自己的DeflateStream，它比.NET框架中附带的更高效。作为一个额外的好处，DotNetZip中的嵌入式DeflateStream允许在缺少System.IO.Compression.DeflateStream的.NET+Compact+Framework2.0上使用DotNetZip。(它是在Compact+Framework+3.5中添加的)|1509130|如果你有更多的问题，在DotNetZip网站上有一个很好的论坛。示例C#代码：|1509131|++++try
++++{
++++++++using+(ZipFile+zip+=+new+ZipFile())
++++++++{
++++++++++++zip.AddDirectory(DirectoryToZip);+//+recurses+subdirs
++++++++++++zip.Save(Filename);
++++++++}
++++}
++++catch+(System.Exception+ex1)
++++{
++++++++System.Console.Error.WriteLine("exception:+"+%2B+ex1);
++++}|code-block|syntax|javascript|1509132|entityMap|0|LINK|mutability|MUTABLE|url|http://www.codeplex.com/DotNetZip^0|C|X|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|C|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@]|C|$M|N]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

You will want to use a third-party library, like <a href="http://www.codeplex.com/DotNetZip" rel="noreferrer">http://www.codeplex.com/DotNetZip</a>, rather than trying to use GZipStream or DeflateStream to read a zip file. 

The ***Stream classes in .NET can let you read or write compressed streams of bytes. These classes DO NOT read or write zip files. The zip file is compressed data surrounded by "an envelope" or a header. Think of it as metadata - it includes the name of the file, timestamp, CRC, and a bunch of other stuff. The **Stream classes produce only the stream of compressed data, and do not know how to produce or consume the metadata, which is described in the PKZip format specification maintained by PKWare. 

Third party libraries like DotNetZip handle the metadata in a ZIP archive. They may or may not use the System.IO.Compression.DeflateStream() class to produced the compressed stream of bytes. In previous releases, for example, DotNetZip used the built-in DeflateStream. As of v1.7, DotNetZip includes its own DeflateStream which is more efficient than the one shipped in the .NET Framework. As an added benefit, the embedded DeflateStream in DotNetZip allows DotNetZip to be used on the .NET Compact Framework 2.0, which lacks a System.IO.Compression.DeflateStream. (it was added in Compact Framework 3.5)

There's a good forum on the DotNetZip site if you have more questions.
Example C# code:

<pre><code> try
 {
 using (ZipFile zip = new ZipFile())
 {
 zip.AddDirectory(DirectoryToZip); // recurses subdirs
 zip.Save(Filename);
 }
 }
 catch (System.Exception ex1)
 {
 System.Console.Error.WriteLine("exception: " + ex1);
 }
</code></pre>

blocks|key|1724213|text|++++public+static+void+zIpDatabseFile(string+srcPath,+string+destPath)
++++{//This+is+for++Zip+a+File
++++++++using+(var+source+=+new+FileStream(srcPath,+FileMode.Open,+FileAccess.Read,+FileShare.Read))
++++++++using+(var+dest+=+new+FileStream(destPath,+FileMode.OpenOrCreate,+FileAccess.Write))
++++++++using+(var+zip+=+new+GZipStream(dest,+CompressionMode.Compress))
++++++++{
++++++++++++source.CopyTo(zip);
++++++++}
++++}
++++public+static+void+uNzIpDatabaseFile(string+SrcPath,+string+DestPath)
++++{//+This+is+for+unzip+a+files.
++++++++using+(var+source+=+new+FileStream(SrcPath,+FileMode.Open,+FileAccess.Read,+FileShare.Read))
++++++++using+(var+dest+=+new+FileStream(DestPath,+FileMode.OpenOrCreate,+FileAccess.Write))
++++++++using+(var+zip+=+new+GZipStream(source,+CompressionMode.Decompress))
++++++++{
++++++++++++zip.CopyTo(dest);
++++++++}
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1724214|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> public static void zIpDatabseFile(string srcPath, string destPath)
 {//This is for Zip a File
 using (var source = new FileStream(srcPath, FileMode.Open, FileAccess.Read, FileShare.Read))
 using (var dest = new FileStream(destPath, FileMode.OpenOrCreate, FileAccess.Write))
 using (var zip = new GZipStream(dest, CompressionMode.Compress))
 {
 source.CopyTo(zip);
 }
 }
 public static void uNzIpDatabaseFile(string SrcPath, string DestPath)
 {// This is for unzip a files.
 using (var source = new FileStream(SrcPath, FileMode.Open, FileAccess.Read, FileShare.Read))
 using (var dest = new FileStream(DestPath, FileMode.OpenOrCreate, FileAccess.Write))
 using (var zip = new GZipStream(source, CompressionMode.Decompress))
 {
 zip.CopyTo(dest);
 }
 }
</code></pre>

blocks|key|1724303|text|一个更老的线程，我知道，但我想指出的是，.NET+4.5对system.io.compression进行了广泛的改进。它现在可以很好地操作.zip文件，甚至可以将zip中的单个文件公开为能够读取和写入的流，而无需提取和压缩文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1724304|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

An older thread, I know, but I'd like to point out that .NET 4.5 added extensive improvements to system.io.compression. It can now manipulate .zip files quite well, even down to exposing individual files within the zip as streams capable or read and write without the step of extracting and compressing the files.

I know there are <a href="https://stackoverflow.com/questions/11737/net-library-to-unzip-zip-and-rar-files">libraries out there for working with ZIP files</a>. And, you can alternatively <a href="https://stackoverflow.com/questions/30211/windows-built-in-zip-compression-script-able">use the functionality built into Windows for working ZIP files</a>.

But, I'm wondering if anyone has worked out how to use the tools built into the System.IO.Compression namespace within .NET for reading/writing ZIP files? Or, is it not possible using only this namespace?

UPDATED: I've seem someone comment that the System.IO.Packaging namespace might be usefull with this also. Does anyone know exactly how to do it?

How to use System.IO.Compression to read/write ZIP files?

数据流

我知道有。此外，您还可以选择。但是，我想知道是否有人想出了如何在.NET中使用内置到System.IO.Compression名称空间中的工具来读/写ZIP文件？或者，不能只使用这个名称空间吗？更新:我似乎有人评论说，System.IO.Packaging名称空间可能对此也很有用。有没有人知道该怎么做？

问如何使用System.IO.Compression读写ZIP文件？
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