I don't know why following query doesn't work:
//a/@href[@class='specified_string']
views:
204answers:
3
+2
A:
Try it the other way round:
//a[@class='specified_string']/@href
After all, class is an attribute of the <a> element, not an attribute of the href attribute.
ndim
2010-04-22 14:42:53
Yes I think it works, but the problem is that query returns attributes, and I want to retrieve attributes' values. I'm writing it in Java and it returned me NodeList of length 2. When I try to print it out, it just prints two xml headers:<?xml version="1.0" encoding="UTF-8"?><?xml version="1.0" encoding="UTF-8"?>two and there is only two links that query will match, so it seems working. But I want to get values of this hrefs. How to do that?
l245c4l
2010-04-22 14:51:47
That `NodeList` should contain the list of `Node`s representing the `href` attributes. So just running `getNodeValue()` on those nodes should give you the `href` attributes' values.
ndim
2010-04-22 15:00:14
+1
A:
You basically say that you are looking for an attribute named href, whose attribute (this is the error) class should be equal to specified_string.
But you need to find the attribute href of an element a, whose attribute class is specified_string.
(ndim's answer overlapped mine)
Patrick
2010-04-22 14:46:45
A:
An attribute cannot have attributes. Only elements can have attributes.
The original XPath expression:
//a/@href[@class='specified_string']
selects any href attribute of any a element, such that the href attribute has an attribute class whose value is 'specified_string'.
What you want is:
//a[@class='specified_string']/@href
that is: the href attribute of any a element that has class atribute with value 'specified_string'.
Dimitre Novatchev
2010-04-22 20:23:29