Parsing attribute in XML with DOM parser

Question

I am currently parsing XML, but im not quite sure how to parse the "status" attribute of "message":

<message status="test"> <text>sometext</text> <msisdn>stuff</msisdn> </message>

Here is the code, i have cut off everything unnecessary:

NodeList nodeLst = doc.getElementsByTagName("message");

for (int s = 0; s < nodeLst.getLength(); s++) {

       Node fstNode = nodeLst.item(s);

       if (fstNode.getNodeType() == Node.ELEMENT_NODE) {

               Element fstElmnt = (Element) fstNode;

               NodeList numberNmElmntLst = fstElmnt
               .getElementsByTagName("msisdn");
               Element numberNmElmnt = (Element) numberNmElmntLst.item(0);
               NodeList numberNm = numberNmElmnt.getChildNodes();
               String phoneNumber = ((Node) numberNm.item(0))
               .getNodeValue().substring(2);

               NodeList txtNmElmntLst = fstElmnt
               .getElementsByTagName("text");
               Element txtNmElmnt = (Element) txtNmElmntLst.item(0);
               NodeList txtNm = txtNmElmnt.getChildNodes();
               String text = ((Node) txtNm.item(0)).getNodeValue();

               NodeList rcvNmElmntLst = fstElmnt
               .getElementsByTagName("received");
               Element rcvNmElmnt = (Element) rcvNmElmntLst.item(0);
               NodeList rcvNm = rcvNmElmnt.getChildNodes();
               String recievedDate = ((Node) rcvNm.item(0)).getNodeValue();
            }
}

Can anyone guide me how this is done?

Thanks in advance.

Aravind Yarram · Accepted Answer · 2012-02-03 18:44:06Z

12

Node.getAttributes()

NamedNodeMap attributes = fstElmnt.getAttributes();

for (int a = 0; a < attributes.getLength(); a++) 
{
        Node theAttribute = attributes.item(a);
        System.out.println(theAttribute.getNodeName() + "=" + theAttribute.getNodeValue());
}

You could avoid traversing if you use XPATH to retrieve the data. Read this tutorial.

edited Feb 3, 2012 at 18:44

answered Feb 3, 2012 at 17:27

Aravind Yarram

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8 Comments

JavaCake Over a year ago

Thanks for your reply, can you explain the attribute aNode?

Aravind Yarram Over a year ago

@JavaCake aNode refers to the node for which you want to retrieve the attribute. In your case it is the Node referring to "message" element.

JavaCake Over a year ago

do you mind giving implementation example based on my code? I cant exactly determine how its done.

Aravind Yarram Over a year ago

@JavaCake i edited my code. I assume "message" is the root element of your xml. if it is then it will work. try it and let me know. You can get the root element using doc.getDocumentElement() in DOM

Aravind Yarram Over a year ago

@JavaCake i just realized "message" is not root element. you need to call that method on fstElmnt. i edited my code

|

user942821 · Accepted Answer · 2012-02-03 17:33:35Z

2

I have been playing with Apache Xerces for parsing DOM. But it was horrible tasks. If you could, take a look at jsoup.

So, if your question has an answer in Jsoup, it would be:

node.attr("status")

answered Feb 3, 2012 at 17:33

user942821

1 Comment

JavaCake Over a year ago

I regret i did not do that, but unfortunately i cannot change much now, the application is very big.

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