Hi All,
I'd like to use JXPath to access elements in an xml file with the
following sample contents in a file called test.xml.
<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore xmlns="http://www.streamsim.com/ns/2007/bookstore";>
<book>
<title lang="eng">Harry Potter</title>
<price>29.99</price>
</book>
<book>
<title lang="eng">Learning XML</title>
<price>39.95</price>
</book>
</bookstore>
I have the following Java method using JXPath to read the xml file:
static public void testJXPath() throws MalformedURLException {
File testXml = new File("C:/TEMP/test.xml");
String xPath = "bookstore/book[0]/title";
URI uri = testXml.toURI();
JXPathContext context = JXPathContext.newContext(new
DocumentContainer(uri.toURL(), DocumentContainer.MODEL_JDOM));
context.registerNamespace("",
"http://www.streamsim.com/ns/2007/bookstore";);
System.out.println(context.selectSingleNode(xPath).getClass().toString());
System.out.println(context.selectSingleNode(xPath).toString());
System.out.println(context.getValue(xPath).getClass().toString());
System.out.println(context.getValue(xPath).toString());
}
This causes an exception:
No pointer for xpath: bookstore/book[0]/title
org.apache.commons.jxpath.JXPathException: No pointer for xpath:
bookstore/book[0]/title
at
org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getPointer(JXPathContextReferenceImpl.java:402)
at
org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getPointer(JXPathContextReferenceImpl.java:392)
at
org.apache.commons.jxpath.JXPathContext.selectSingleNode(JXPathContext.java:639)
However, when I remove the namespace from the xml file, the method
runs fine with the following output.
------------- Standard Output ---------------
class org.jdom.Element
[Element: <title/>]
class java.lang.String
Harry Potter
Can anyone tell me how do I get this to work with the namespace in
the xml? I thought that the registerNamespace would work, but I
guess I don't understand what it does.
Thanks in advance for the help!
Darryl
Darryl Fenwick
Senior Product Manager
Streamsim Technologies, Inc
204 Ramona St
Palo Alto, CA 94301
+1 650 557 2196
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