Java XML read problem: read different child tags

Question

Can someone tell me how to read this kind of XML file to get the child element names?

 <CEB>
    <MOREVALUES></MOREVALUES>
 </CEB>

 <DILOG>
    <MOREVALUES></MOREVALUES>
 </DILOG>

 <MOBITLE>
    <MOREVALUES></MOREVALUES>
 </MOBITLE>

e.g I want to read all the child tags inside the <CTLBILL> tag. <CEB>, <DILOG>, and <MOBITLE> in this case.

This doesn't work:

public static void getTags() {
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            Document doc = db.parse(new File("C:\\ctlbill.xml"));
            NodeList nodeLst = doc.getChildNodes();
            for (int s = 0; s < nodeLst.getLength(); s++)
            {           
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
}

what exactly doesn't work? nodeLst is empty, or nodeLst.item(i) returns not what you expect? — Denis Tulskiy
– Denis Tulskiy, Commented May 26, 2011 at 5:37

Grzegorz Szpetkowski · Accepted Answer · 2011-05-26 05:42:07Z

1

Try to use:

NodeList nodeLst = doc.getDocumentElement().getChildNodes();
for (int s = 0; s < nodeLst.getLength(); s++)
    if (nodeLst.item(s) instanceof Element)
        System.out.println(nodeLst.item(s).getNodeName());

I am assuming that CTLBILL is your document (root) element that contains CEB, DILOG and MOBITLE elements (well formed XML must have only one root element).

answered May 26, 2011 at 5:42

Grzegorz Szpetkowski

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1 Comment

Aruna Karunarathna Over a year ago

Thsnks for the help buddy... :) NodeList nodeLst = doc.getDocumentElement().getChildNodes(); This is what I was missing.. Thanks a lot..

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