Re: JSP XML with DOM

From:
Dave Miller <nonregistered@coldrain.net>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 27 May 2008 14:42:48 GMT
Message-ID:
<I5V_j.227$GT5.161@trndny01>
designbyjohn@gmail.com wrote:

Hi all.

I am new to JSP and DOM, I am trying to get a subset of values
(categories) from an xml file which looks something like this:

<page>
<something>
...
</something>
<categories>
<category>cat1</category>
<category>cat2</category>
</categories>
</page>

So far I have come up with this. It returns "null null null", which is
interesting because there are only two categories in my xml file.. Any
help would be greatly appreciated.

Regards,
John.

Document doc = db.parse(file);
NodeList list = doc.getElementsByTagName("categories");
for (int i=0; i<list.getLength(); i++) {
Element element = (Element)list.item(i);
NodeList childNodes = element.getChildNodes();
if (childNodes != null) {
for (int x=0; x<childNodes.getLength(); x++) {
String string = childNodes.item(x).getNodeValue();
out.println(string);
}
}
}


Drill down one more level:

NodeList nl = d.getElementsByTagName("categories");
for (int i = 0;i< nl.getLength(); i++){
Node nd = nl.item(i);
if(nd != null && nd.getFirstChild() != null &&
nd.getFirstChild().getNodeValue() != null){
out.print(nd.getFirstChild().getNodeValue());
}
}

--
Dave Miller
Java Web Hosting at:
http://www.cheap-jsp-hosting.com/

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