I'd also recommend the excellent XPath tutorial, takes about 20 minutes
to do and teaches you most things you need to know about XPath...
http://www.zvon.org/xxl/XPathTutorial/General/examples.html
On Sunday, August 17, 2003, at 11:30 pm, Jan Bartel wrote:
Chris,
I'm trying to grab a particular list of nodes using
dom4j from an xml document. Some things seem to work
and some obvious things don't. My first experience
with it is here..so it could be my lack of
understanding XPath.
I tried to get elements using this:
/ejb-jar/enterprise-beans
I'm expecting to get all of the child nodes directly
beneath /ejb-jar/enterprise-beans this way.
You should get a list of all enterprise-bean nodes with this
expression (note, should be just one of these in an ejb-jar
descriptor), not their children."/ejb-jar/enterprise-beans/*" should
get you all the children.
I am also trying to get a single attribute of a single
element using this: /[EMAIL PROTECTED]
Well, this xpath expression would return you the attribute "version"
of the "ejb-jar" element at the root of the document (that is, if
ejb-jar had such an attribute).
The only paths that seem to work are these: "//" or
"@version"
this is the code...
XPath xpathSelector = DocumentHelper.createXPath(str);
List nodes =
xpathSelector.selectNodes(node.getDocument());
It might be easier to play around with the non-compiled XPath
expressions until you get it sorted out, eg:
List nodes = document.selectNodes ("/ejb-jar/enterprise-beans");
nodes = document.selectNodes ("/ejb-jar/enterprise-beans/*");
cheers,
Jan
James
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