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C# -- HTML Agility Pack 사용한 html 파싱
참고 : http://www.c-sharpcorner.com/UploadFile/9b86d4/getting-started-with-html-agility-pack/
http://blog.olussier.net/2010/03/30/easily-parse-html-documents-in-csharp/
http://stackoverflow.com/questions/21236359/get-a-value-of-an-attribute-by-htmlagilitypack
http://www.codeproject.com/Tips/804660/How-to-Parse-HTML-using-Csharp
http://www.w3schools.com/xsl/xpath_syntax.asp ==> xpath 사용법
** HTML Agility Pack 에서는 xpath 문법 지원한다.
1. Manage NuGet Packages... 를 통해서 Html Agility Pack 을 설치한다.
2. 사용하기
** 사용 예
HtmlAgilityPack.HtmlDocument document = htmlWeb.Load("http://www.somewebsite.com");
HtmlNode someNode = document.GetElementbyId("mynode");
3. 출력결과
<< 소스 >>
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| using System; | |
| using HtmlAgilityPack; | |
| namespace HtmlParsing | |
| { | |
| class Program | |
| { | |
| static void Main(string[] args) | |
| { | |
| String myHtml = @"<body> | |
| <p>It is better to use the style attribute (instead of the width and height attributes), because it prevents | |
| internal or external styles sheets to change the original size of an image:</p> | |
| <img src=""html51.gif"" alt=""HTML5 Icon"" style=""width:128px;height:128px;""> | |
| <img src=""html52.gif"" alt=""HTML5 Icon"" width=""128"" height=""128""> | |
| </body>"; | |
| // Console.WriteLine(myHtml); | |
| HtmlAgilityPack.HtmlDocument mydoc = new HtmlAgilityPack.HtmlDocument(); | |
| mydoc.LoadHtml(myHtml); | |
| HtmlAgilityPack.HtmlNodeCollection nodeCol = mydoc.DocumentNode.SelectNodes("//img"); | |
| foreach (HtmlAgilityPack.HtmlNode node in nodeCol) | |
| { | |
| Console.WriteLine(node.OuterHtml); | |
| Console.WriteLine(node.Attributes["src"].Value); | |
| } | |
| Console.ReadLine(); | |
| } | |
| } | |
| } |
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