Extraction of HTML Tags using Java

Question

I wanted to extract the various HTML tags available from the source code of a web page is there any method in Java to do that or do HTML parser support this?

I want to seperate all the HTML tags .

Refer to this link: stackoverflow.com/questions/2168610/which-html-parser-is-best — rkg
– rkg, Commented Mar 21, 2011 at 8:02

Adam Ayres · Accepted Answer · 2011-03-21 07:58:51Z

1

Java comes with an XML parser with similar methods to the DOM in JavaScript:

DocumentBuilder builder = DocumentBuilderFactory.newDocumentBuilder();
Document doc = builder.parse(html);
doc.getElementById("someId");
doc.getElementsByTagName("div");
doc.getChildNodes();

The document builder can take many different inputs (input stream, raw html string, etc).

http://download.oracle.com/javase/1.5.0/docs/api/org/w3c/dom/Document.html

The cyber neko parser is also good if you need more.

answered Mar 21, 2011 at 7:58

Adam Ayres

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WhiteFang34 · Accepted Answer · 2011-03-21 07:52:55Z

0

Check out CyberNeko HTML Parser.

answered Mar 21, 2011 at 7:52

WhiteFang34

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Mikhail · Accepted Answer · 2011-03-21 07:54:10Z

0

You can use regular expressions. If your html is valid XML -- you can use XML parser

answered Mar 21, 2011 at 7:54

Mikhail

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2 Comments

Romain Linsolas Over a year ago

stackoverflow.com/questions/1732348/…

Rune Aamodt Over a year ago

If his HTML is valid XML, then it's actually XHTML.

Rune Aamodt · Accepted Answer · 2011-03-21 08:02:05Z

0

I've used HTMLParser in one project, was pretty happy with it.

Edit: If you check the samples page, the parser sample does pretty much what you're asking for.

answered Mar 21, 2011 at 8:02

Rune Aamodt

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Alpine · Accepted Answer · 2011-03-21 08:16:43Z

0

You can write your own util method to extract tags.

Check for < and /> or > for complete tag and write those tags to another file.

edited Mar 21, 2011 at 8:16

Alpine

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answered Mar 21, 2011 at 8:00

developer

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2 Comments

Joachim Sauer Over a year ago

Come on! A typo every now and then is not that bad, but 4 wrong words in the first 6?

Joachim Sauer Over a year ago

Before your edit you had "u can write ur won uitill". You (correctly) replaced "u" with "you" ('though it should be capitalized), "ur" with "your" and "uitill" with "util". "won" should still be "own". And regarding your content: I wouldn't suggest trying to implement a HTML parser from scratch. It's a tough problem and others have already (mostly) solved it.

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