从网站ASP.NET MVC3中提取元数据

Question

I have been going round in circles trying to extract meta tag information from external websites. I started of with a XML approach but due to tags link doctype etc, my application kept throwing errors.

I am now taking a HttpResponse approach, I know how to get the website back and stored in a variable as a string but

I can't figure out how to extract a substring from the content in the meta tags?

I have been searching for a solution to this problem for days. Thanks in advance!

Answer 1

使用HTML Agility Pack下载，解析和查询外部HTML。

Answer 2

I never tried it with meta tags but for HTML documents is the Html Agility Pack a good solution. For some examples see this blog post .