There's some work in progress related to adding xpath support to jsoup https://github.com/jhy/jsoup/pull/80.
JSoup doesn't support XPath yet, but you may try XSoup - "Jsoup with XPath".
Here's an example quoted from the projects Github site (link):
@Test
public void testSelect() {
String html = "<html><div><a href='https://github.com'>github.com</a></div>" +
"<table><tr><td>a</td><td>b</td></tr></table></html>";
Document document = Jsoup.parse(html);
String result = Xsoup.compile("//a/@href").evaluate(document).get();
Assert.assertEquals("https://github.com", result);
List<String> list = Xsoup.compile("//tr/td/text()").evaluate(document).list();
Assert.assertEquals("a", list.get(0));
Assert.assertEquals("b", list.get(1));
}
There you'll also find a list of features and expressions of XPath that are supported by XSoup.