Java : HTML Parsing

Question

I am having HTML contents as given below. The tag that i am looking out for here are "img src" and "!important". Does Java provide any HTML parsing techniques?

<fieldset>
<table cellpadding='0'border='0'cellspacing='0'style="clear :both">
<tr valign='top' ><td width='35' >
<a href='http://mypage.rediff.com/android/32868898'class='space' onmousedown="return
 enc(this,'http://track.rediff.com/clickurl=___http%3A%2F%2Fmypage.rediff.com%2Fandroid%2F3 868898___&service=mypage_feeds&clientip=202.137.232.117&pos=0&feed_id=12942949154d255f839677925642&prc_id=32868898&rowid=2064549114')" >
<div style='width:25px;height:25px;overflow:hidden;'>
<img src='http://socialimg04.rediff.com/image.php?uid=32868898&type=thumb'  width='25'  vspace='0'  /></div></a></td> <td><span>
<a href='http://mypage.rediff.com/android/32868898'  class="space" onmousedown="return enc(this,'http://track.rediff.com/click?url=___http%3A%2F%2Fmypage.rediff.com%2Fandroid%2F32868898___&service=mypage_feeds&clientip=202.137.232.117&pos=0&feed_id=12942949154d255f839677925642&prc_id=32868898&rowid=2064549114')" >Android </a> </span><span style='color:#000000
!important;'>android se updates...</span><div class='divtext'></div></td></tr><tr><td height='5' ></td></tr></table></fieldset><br/>

@marcog people do often mix those two so I'm just double checking no harm in that — ant
– ant, Commented Jan 6, 2011 at 12:42

Community · Accepted Answer · 2017-05-23 09:58:16Z

2

String value = Jsoup.parse(new File("d:\\1.html"), "UTF-8").select("img").attr("src");
System.out.println(value); //http://socialimg04.rediff.com/image.php?uid=32868898&type=thumb
System.out.println(Jsoup.parse(new File("d:\\1.html"), "UTF-8").select("span[style$=important;]").first().text());//android se updates...

edited May 23, 2017 at 9:58

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answered Jan 6, 2011 at 11:09

Jigar Joshi

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3 Comments

Jigar Joshi Over a year ago

and for important part please clarify question

Faheem Kalsekar Over a year ago

there is a tag important which contains a text, which i need to fetch.

Jigar Joshi Over a year ago

I can't see any important tag in the html you have given

skaffman · Accepted Answer · 2011-01-06 11:08:03Z

1

Try NekoHtml. This is the HTML parsing library used by various higher-level testing frameworks such as HtmlUnit.

NekoHTML is a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information using standard XML interfaces. The parser can scan HTML files and "fix up" many common mistakes that human (and computer) authors make in writing HTML documents. NekoHTML adds missing parent elements; automatically closes elements with optional end tags; and can handle mismatched inline element tags.

answered Jan 6, 2011 at 11:08

skaffman

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Igor · Accepted Answer · 2011-01-06 11:20:54Z

1

I used jsoup - this library have nice selector syntax (http://jsoup.org/cookbook/extracting-data/selector-syntax), and for your problem you can use code like this:

File input = new File("input.html");
Document doc = Jsoup.parse(input, "UTF-8", "http://example.com/");

Elements pngs = doc.select("img[src$=.png]");

answered Jan 6, 2011 at 11:20

Igor

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Igor Over a year ago

for 'important' use the following code: doc.getElementsByAttributeValueMatching(String key,String regex). In your case key is "style" (span style="... !important") and regex is "(!important)"

FolksLord · Accepted Answer · 2011-01-21 18:40:59Z

1

I like using Jericho: http://jericho.htmlparser.net/docs/index.html

It is invulnerable to bad formed html, links leading to unavailable locations etc.

There's a lot of examples on their page, you just get all IMG tags and analyze their attributes to extracts those that pass your needs.

answered Jan 21, 2011 at 18:40

FolksLord

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