There are dozen of screen scraping library written in Java. Just to cite a few :
TagSoup - a SAX-compliant parser written in Java that, instead of parsing well-formed or valid XML, parses HTML as it is found in the wild: nasty and brutish, though quite often far from short. TagSoup is designed for people who have to process this stuff using some semblance of a rational application design. By providing a SAX interface, it allows standard XML tools to be applied to even the worst HTML.
Jericho HTML Parser - Jericho HTML Parser is a simple but powerful java library allowing analysis and manipulation of parts of an HTML document, including some common server-side tags, while reproducing verbatim any unrecognised or invalid HTML. It also provides high-level HTML form manipulation functions. t is neither an event nor tree based parser, but rather uses a combination of simple text search, efficient tag recognition and a tag position cache. The text of the whole source document is first loaded into memory, and then only the relevant segments searched for the relevant characters of each search operation.
HTML Cleaner - HtmlCleaner reorders individual elements and produces well-formed XML from dirty HTML. It follows similar rules that the most of web-browsers use in order to create document object model. A user may provide custom tag and rule set for tag filtering and balancing.
NekoHTML - 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.
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有十几个用 Java 编写的屏幕抓取库。仅举几例：
还有更多用 Java 编写的 HTML 屏幕抓取工具< /a>.但正如我在 之前的回答。但这对您来说可能不是问题。
以防万一，也许可以查看线程Nokogiri pure Java状态。
更新：一个新项目已经发布（2010-01-31），jsoup ，它提供了选择器语法来查找元素。请参阅其网站了解更多详细信息和/或作者的此答案 。
There are dozen of screen scraping library written in Java. Just to cite a few :
And many more at HTML Screen Scraping Tools written in Java. But these are IMO the best to deal with any kind of content (understand all kind of crap) as I mentioned in this previous answer. This might not be an issue for you though.
Just in case, maybe check out the thread Nokogiri pure Java status.
Update: A new project has been released (the 2010-01-31), jsoup, which offers a selector-syntax to find elements. See its website for more details and/or this answer from its author.
您可以通过 jRuby 使用 hpricot。有关详细信息，请参阅这个问题。
You could use hpricot through jRuby. See this SO question for more details about it.