我如何COM preSS从ASP.NET MVC与IIS 7.5 JSON结果 [英] How do I compress a Json result from ASP.NET MVC with IIS 7.5

问题描述

我有困难，使得IIS 7正确COM preSS从ASP.NET MVC一个JSON结果。我在IIS中启用静态和动态融为一体pression。我可以使用Fiddler验证正常的text / html和类似的记录是COM pressed。查看请求，接受编码，gzip头是present。响应有MIME类型应用程序/ JSON，而不是COM pressed。

我已经确定，这个问题似乎涉及到媒体类型。当我包括 mime类型=* / *，我可以看到，响应正确gzip压缩。我怎样才能获得IIS以COM preSS不使用通配符mime类型？我认为，这个问题牵扯到与ASP.NET MVC生成的内容类型头的方式。

CPU使用率远低于动态限制门槛。当我检查IIS中的跟踪日志，我可以看到它未能COM preSS由于没有找到匹配的MIME类型。

 ＆LT; httpCom pression目录=的％SystemDrive％\\的Inetpub \\ TEMP \\ IIS临时的COM pressed文件noCom pressionForProxies =false的＆GT;
    ＆LT;方案名称=gzip的DLL =％WINDIR％\\ SYSTEM32 \\ INETSRV \\ gzip.dll/＆GT;
    ＆LT; dynamicTypes＆GT;
        ＆LT;添加mime类型=文/ *启用=真/＆GT;
        ＆LT;添加mime类型=消息/ *启用=真/＆GT;
        ＆LT;添加mime类型=应用程序/ x-JavaScript的启用=真/＆GT;
        ＆LT;添加mime类型=应用/ JSON启用=真/＆GT;
    ＆LT; / dynamicTypes＆GT;
    ＆LT; staticTypes＆GT;
        ＆LT;添加mime类型=文/ *启用=真/＆GT;
        ＆LT;添加mime类型=消息/ *启用=真/＆GT;
        ＆LT;添加mime类型=应用程序/ x-JavaScript的启用=真/＆GT;
        ＆LT;添加mime类型=应用程序/原子+ XML启用=真/＆GT;
        ＆LT;添加mime类型=应用/ XAML + XML启用=真/＆GT;
        ＆LT;添加mime类型=应用/ JSON启用=真/＆GT;
    ＆LT; / staticTypes＆GT;
＆LT; / httpCom pression＆GT;
 

解决方案

请确保您的％WINDIR％\\ SYSTEM32 \\ INETSRV \\设置\\的applicationHost.config 包含这些：

 ＆LT; system.webServer＆GT;
    ＆LT; urlCom pression doDynamicCom pression =真/＆GT;
    ＆LT; httpCom pression＆GT;
      ＆LT; dynamicTypes＆GT;
        ＆LT;添加mime类型=应用/ JSON启用=真/＆GT;
        ＆LT;添加mime类型=应用/ JSON的;字符集= UTF-8启用=真/＆GT;
      ＆LT; / dynamicTypes＆GT;
    ＆LT; / httpCom pression＆GT;
＆LT; /system.webServer>
 

从@AtanasKorchev的链接。

由于@simon_weaver在评论中说，你可能会被编辑用在64位Windows 32位编辑了错误的文件，使用的notepad.exe以确保该文件确实修改。

I'm having difficulty making IIS 7 correctly compress a Json result from ASP.NET MVC. I've enabled static and dynamic compression in IIS. I can verify with Fiddler that normal text/html and similar records are compressed. Viewing the request, the accept-encoding gzip header is present. The response has the mimetype "application/json", but is not compressed.

I've identified that the issue appears to relate to the MimeType. When I include mimeType="*/*", I can see that the response is correctly gzipped. How can I get IIS to compress WITHOUT using a wildcard mimeType? I assume that this issue has something to do with the way that ASP.NET MVC generates content type headers.

The CPU usage is well below the dynamic throttling threshold. When I examine the trace logs from IIS, I can see that it fails to compress due to not finding a matching mime type.

<httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files" noCompressionForProxies="false">
    <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" />
    <dynamicTypes>
        <add mimeType="text/*" enabled="true" />
        <add mimeType="message/*" enabled="true" />
        <add mimeType="application/x-javascript" enabled="true" />
        <add mimeType="application/json" enabled="true" />
    </dynamicTypes>
    <staticTypes>
        <add mimeType="text/*" enabled="true" />
        <add mimeType="message/*" enabled="true" />
        <add mimeType="application/x-javascript" enabled="true" />
        <add mimeType="application/atom+xml" enabled="true" />
        <add mimeType="application/xaml+xml" enabled="true" />
        <add mimeType="application/json" enabled="true" />
    </staticTypes>
</httpCompression>

解决方案

Make sure your %WinDir%\System32\inetsrv\config\applicationHost.config contains these:

<system.webServer>
    <urlCompression doDynamicCompression="true" />
    <httpCompression>
      <dynamicTypes>
        <add mimeType="application/json" enabled="true" />
        <add mimeType="application/json; charset=utf-8" enabled="true" />       
      </dynamicTypes>
    </httpCompression>
</system.webServer>

From the link of @AtanasKorchev.

As @simon_weaver said in the comments, you might be editing the wrong file with a 32 bit editor on a 64 bit Windows, use notepad.exe to make sure this file is indeed modified.

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