Question

I try to parse a xml-feed with the follow data:

<company>
<year id="2000">
<quarter id="1" sales="80"/>
</year>

<year id="2001">
<quarter id="1" sales="20"/>
</year>
</company>

Is it possible to get only the year with the value 2001?

I have the follow code:

URL url = new URL(feedUrl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();

    if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
     InputStream is = conn.getInputStream();

     //DocumentBuilderFactory, DocumentBuilder are used for 
     //xml parsing
     DocumentBuilderFactory dbf = DocumentBuilderFactory
       .newInstance();
     DocumentBuilder db = dbf.newDocumentBuilder();

     //using db (Document Builder) parse xml data and assign
     //it to Element
     Document document = db.parse(is);
     Element element = document.getDocumentElement();

     //take rss nodes to NodeList
     element.normalize();
     NodeList nodeList =  ???????

Answer 1

If you don’t want to use XPath, you can do this:

  NodeList list = element.getElementsByTagName("year");
  for(int i = 0 ; i < list.getLength(); i++){
      Node n = list.item(i);
      NamedNodeMap map = n.getAttributes();
      String value = map.getNamedItem("id").getNodeValue();
      System.out.println(value);
      if("2001".equals(value)){
          //do something with node n
          System.out.println("found");
      }          
  }