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Hi:
I tried using
NodeList nodeList=xmlDocument.selectNodes("/applet/transport/name", nsr);
XMLElement node=(XMLElement)nodeList.item(0);
String trans_val1 = node.getAttribute("name");
But I still get a Java NPE at node.getAttribute("name").
I read about getAttribute( ) and it says --
public String getAttribute(String name)
Retrieves an attribute value by name.
Parameters:
name - The name of the attribute to retrieve.
Returns:
The Attr value as a string, or the empty string if that attribute does
not have a specified or default value.
Or
should I just use
NodeList nodeList=xmlDocument.selectNodes("/applet/transport/@name", nsr);
XMLElement node=(XMLElement)nodeList.item(0);
String trans_val1 = node.getNodeValue();
On Mon, 24 Jan 2005 15:35:52 -0500, Christopher Maloney
<dude@chrismaloney.com> wrote:
> You're calling the getAttribute() method on an Attribute node.
>
> NodeList nodeList=xmlDocument.selectNodes("/applet/transport/@name", nsr);
>
> returns only Attribute nodes (since the last thing in your XPath expression is
> "@name". Maybe you wanted the XPath expression "/applet/transport/name"?
>
> Otherwise, you need to call the getValue() method on an Attribute node,
> not getAttribute().
>
> Nishi Prafull wrote:
>
> >Hi:
> >
> >If I have the following in my xml doc,
> ><tptd:applet xmlns tptd="http://www.oracle.com/tptd/configuration";
> >xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> >xsi:schemaLocation="http://www.oracle.com/tptd/configuration plus
> >_config.xsd">
> ><transport name="jrmp"/>
> ><transport name="codebase"/>.....
> >.....
> ></tptd:applet>
> >
> >I want to extract the values of the "name" nodes and subsitute them as
> >values for the "name" nodes in another xml document. I have written
> >the following DOM Parser implementation but it gives me a Java NPE at
> >node.getAttribute().
> >Can someone please let me know what I am doing wrong here --
> >
> >public void doSub() throws FileNotFoundException, IOException,
> >XSLException, InvocationTargetException, XMLParseException,
> >SAXException
> > {
> > URL in_xml_url = new URL("file://" + getSpec());
> > FileOutputStream out_xml = new FileOutputStream(m_outfileSpec, false);
> >
> > XMLDocument xmlDocument = null;
> >
> > //Create a parser
> > DOMParser parser = new DOMParser();
> >
> > parser.setValidationMode(XMLConstants.NONVALIDATING);
> > parser.setBaseURL(in_xml_url);
> >
> > //Create a document from the url
> > parser.parse(in_xml_url);
> >
> > //Cache the document from the parser
> > xmlDocument = parser.getDocument();
> >
> > XMLElement nsr = (XMLElement) xmlDocument.getDocumentElement();
> >
> > //namespace resolver
> > NodeList nodeList=xmlDocument.selectNodes("/applet/transport/@name", nsr);
> >
> > XMLElement node=(XMLElement)nodeList.item(0);
> > String trans_val1 = node.getAttribute("name"); //getting Java NPE here
> > XMLElement node1=(XMLElement)nodeList.item(1);
> > String trans_val2 = node1.getAttribute("name");
> >
> > //subsitute in the new document
> > parser.parse(new FileReader(m_outfileSpec));
> > XMLDocument document1 =parser.getDocument();
> >
> > XMLElement nsr_new = (XMLElement) document1.getDocumentElement();
> >
> > NodeList nodeList1=document1.selectNodes("/configuration//plus/transport/@name",f);
> > XMLElement node2=(XMLElement)nodeList1.item(0);
> > node2.setAttribute("name",trans_val1);
> > XMLElement node3=(XMLElement)nodeList.item(1);
> > node3.setAttribute("name",trans_val2);
> > document1.print(out_xml);
> > out_xml.close();
> > }
> >
> >
> >Thanks much.
> >
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> >
> >
> >
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