Menu
Can anyone recommend me a java library to allow me XPath Queries over URLs? I've tried JAXP without success.
Thank you.
953
In this Java XPath tutorial, we will learn what is XPath library, what are XPath data types and learn to create XPath expression syntax to retrieve information from XML file or document. This information can be XML nodes or XML attributes or even comments as well.
XPath stands for "XML Path Language" which essentially means it's a query language that described a path from point A to point B for XML/HTML type of documents. Other path languages you might know of are CSS selectors which usually describe paths to apply styles to, or tool specific languages like jq which describe path for JSON type documents.
Since HTML is just a subset of XML we can safely use xpath in almost every modern language! In Python there are multiple packages that implement xpath functionality, however most of them are based on lxml package which is a pythonic binding of libxml2 and libxslt C language libraries.
Every element in the original XML document is represented by an XPath element node. For example in our sample XML below are element nodes. 2.3. Attribute Nodes At a minimum, an element node is the parent of one attribute node for each attribute in the XML source document.
There are several different approaches to this documented on the Web:
Using HtmlCleaner
Using Jericho
I have tried a few different variations of these approaches, i.e. HtmlParser plus the Java DOM parser, and JSoup plus Jaxen, but the combination that worked best is HtmlCleaner plus the Java DOM parser. The next best combination was Jericho plus Jaxen.
101
jsoup, Java HTML Parser Very similar to jQuery syntax way.
44
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
