.NET的HTML解析库 [英] HTML Parsing Libraries for .NET

问题描述

我正在寻找图书馆来解析HTML以提取链接，表单，标签等。

I'm looking for libraries to parse HTML to extract links, forms, tags etc.

• http://www.majestic12.co.uk/projects/html_parser.php


• http://www.netomatix.com/Products/DocumentManagement/HtmlParserNet .aspx


• http ：//www.developer.com/net/csharp/article.php/2230091

• http://www.majestic12.co.uk/projects/html_parser.php
• http://www.netomatix.com/Products/DocumentManagement/HtmlParserNet.aspx
• http://www.developer.com/net/csharp/article.php/2230091

LGPL或任何其他商业广告开发友好的许可证是可取的。

LGPL or any other commercial development friendly licenses are preferable.

你有没有与这些图书馆有任何经验？或者你可以推荐另一个类似的库吗？

Have you got any experience with one of this libraries? Or could you recommend another similar library?

推荐答案

HTML Agility Pack 具有这种类型的事情的例子，并使用xpath进行熟悉的查询，例如（从主页），查找所有链接都是简单的：

The HTML Agility Pack has examples of exactly this type of thing, and uses xpath for familiar queries - for example (from home page), to find all links is simply:

foreach(HtmlNode link in doc.DocumentElement.SelectNodes("//a@href")) {
    //...
}

---

编辑

截至6/19/2012，上述代码以及唯一的代码示例显示在 HTML敏捷包示例 页面将无法正常工作。只需要稍微调整，如下所示。

HtmlDocument doc = new HtmlDocument();
doc.Load("file.htm");

foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]"))
{
  HtmlAttribute att = link.Attributes["href"];
  att.Value = Foo(att); // fix the link
}
doc.Save("file.htm");

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