Getting attribute using XPath

How could I get the value of lang (where lang=eng in book title), for the first element?

Use:

/*/book[1]/title/@lang

This means:

Select the lang attribute of the title element that is a child of the first book child of the top element of the XML document.

To get just the string value of this attribute use the standard XPath function string():

string(/*/book[1]/title/@lang)

Thanks! This solved a similar problem I had with a data attribute inside a Div.

<div id="prop_sample" data-want="data I want">data I do not want</div>

Use this xpath: //*[@id="prop_sample"]/@data-want

Hope this helps someone else!

You can try below xPath pattern,

  XPathExpression expr = xPath.compile("/bookstore/book/title[@lang='eng']")