![]() DOM tree, so if you’re familiar with the DOM, you will easily get some understanding of how to build basic XPath expressions. This tree is very similar to a Document Object Model i.e. XPath views an XML document as a tree of nodes. In addition to the basic syntax, XPath provides a set of useful functions (such as count() or contains(), much similar to utility functions calls) that allows searching for various data fragments inside the document. The syntax is a mix of basic programming language expressions (wild cards such as $x*6) and Unix-like path expressions (such as /inventory/author). XPath uses language syntax much similar to what we already know. XPath can sometimes be useful while testing web services using XML for retrieving and validating the API responses. ![]() An XSLT stylesheet uses XPath expressions in the match and selects attributes of various elements to indicate how a document should be transformed. With XPath, we can refer to an element, any attribute of the elements, all specific elements that contain some text, and many other combinations. XPath is a syntax used to describe parts of an XML document. Get book titles written by Neal Stephenson Get count of book titles written by Neal Stephenson Get book titles with writer name containing Niven Get book titles with writer name starting with Neal Get book titles written after book titles cheaper than 8 dollars ![]() The following table lists a few XPath expressions for quick reference: Description ![]() We will use this XML in evaluating various XPath expressions in this tutorial. This information can be XML nodes or XML attributes or even comments as well. 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 an XML file or document. ![]()
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