How to extract html links from html file in C#?
Can anyone help me 开发者_开发百科by explaining how to extract urls/links from HTML File in C#
look at Html Agility Pack
HtmlDocument doc = new HtmlDocument();
doc.Load("file.htm");
foreach(HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]"))
{
HtmlAttribute att = link.Attributes["href"];
yourList.Add(att.Value)
}
doc.Save("file.htm");
Use HTMLAgility Pack...
private List<string> ParseLinks(string html)
{
var doc = new HtmlDocument();
doc.LoadHtml(html);
var nodes = doc.DocumentNode.SelectNodes("//a[@href]");
return nodes == null ? new List<string>() : nodes.ToList().ConvertAll(r => r.Attributes.ToList().ConvertAll(i => i.Value)).SelectMany(j => j).ToList();
}
It works for me.
You can use an HTQL COM object and query the page using query: <a>:href
HTQLCOMLib.HtqlControl h = new HTQLCOMLib.HtqlControl();
string page = "<html><body><a href='test1.html'>test1</a><a href='test2.html'>test2</a> </body></html>";
h.setSourceData(page, page.Length);
h.setQuery("<a>: href ");
for (h.moveFirst(); 0 == h.isEOF(); h.moveNext() )
{
MessageBox.Show(h.getValueByIndex(1));
}
It will show messages of:
test1.html
test2.html
加载中,请稍侯......
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