在 .Net Core 中获取文件扩展属性 [英] Obtaining file extended properties in .Net Core

问题描述

我想使用 .Net Core 从文件中读取扩展属性，例如 Product Version、Author 等.

I want to read extended properties like Product Version, Author, etc. from a file using .Net Core.

有像 FileVersionInfo 这样的类，用于提供版本信息，Shell 对象用于读取有关文件的更多信息等.

There were classes like FileVersionInfo that used to provide version information, Shell object to read more about file, etc.

现在，我再也找不到这样的课程了.我如何使用 .Net Core 读取此类信息?

Now, I don't find such classes any more. How do I read such info using .Net Core?

推荐答案

FileVersionInfo 可以在 NuGet，它位于System.Diagnostics 命名空间从一开始，所以你只需要安装包:

FileVersionInfo can be easily found on NuGet, it's been located in System.Diagnostics namespace from the beginning, so you need just to install the package:

Install-Package System.Diagnostics.FileVersionInfo

并像往常一样使用这个类，getting来自某些的文件信息IFileProvider，例如PhysicalFileProvider:

and use this class as usual, getting the file info from some IFileProvider, for example, PhysicalFileProvider:

using System.Diagnostics;

var provider = new PhysicalFileProvider(applicationRoot);
// the applicationRoot contents
var contents = provider.GetDirectoryContents("");
// a file under applicationRoot
var fileInfo = provider.GetFileInfo("wwwroot/js/site.js");
// version information
var myFileVersionInfo = FileVersionInfo.GetVersionInfo(fileInfo.PhysicalPath);
//  myFileVersionInfo.ProductVersion is available here

对于 作者 信息，您应该使用 FileSecurity 类，位于 System.Security.AccessControl 命名空间，类型为 System.Security.Principal.NTAccount:

For Author information you should use FileSecurity class, which is located in System.Security.AccessControl namespace, with type System.Security.Principal.NTAccount:

Install-Package System.Security.AccessControl
Install-Package System.Security.Principal

之后的用法类似:

using System.Security.AccessControl;
using System.Security.Principal;

var fileSecurity = new FileSecurity(fileInfo.PhysicalPath, AccessControlSections.All);
// fileSecurity.GetOwner(typeof(NTAccount)) is available here

现在的一般规则是用谷歌搜索一个类的全限定名，并添加 core 或 nuget 到它，这样你肯定会得到需要的文件，它是新的位置.

General rule right now is to google the full qualified name for a class and add core or nuget to it, so you'll definitely get needed file with it's new location.

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