Question

Seems like a basic question but I can’t find this anywhere. Basically I’ve got a list of XML links like so: (all in one string)

I already have the “string” var which contains all the XML. Just extracting the HTML strings.

<?xml version="1.0" encoding="UTF-8"?>
<fql_query_response xmlns="http://api.facebook.com/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" list="true">
<photo>
    <src_small>http://photos-a.ak.fbcdn.net/hphotos-ak-ash4/486603_10151153207000351_1200565882_t.jpg</src_small>
</photo>
<photo>
  <src_small>http://photos-c.ak.fbcdn.net/hphotos-ak-ash3/578919_10150988289678715_1110488833_t.jpg</src_small>
</photo>

I want to convert these into a arrayList, so something like URLArray[0] would be the first address as a string.

Can anyone tell me how to do this thanks?

Answer 1

  DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  DocumentBuilder builder = factory.newDocumentBuilder();
  InputSource is = new InputSource( new StringReader( xmlString) );
  Document doc = builder.parse( is );

  XPathFactory factory = XPathFactory.newInstance();
  XPath xpath = factory.newXPath();
  xpath.setNamespaceContext(new PersonalNamespaceContext());
  XPathExpression expr = xpath.compile("//src_small/text()");

  Object result = expr.evaluate(doc, XPathConstants.NODESET);
  NodeList nodes = (NodeList) result;
  List<String> urls = new ArrayList<String>();
  for (int i = 0; i < nodes.getLength(); i++) {
      urls.add (nodes.item(i).getNodeValue());
      System.out.println(nodes.item(i).getNodeValue()); 
  }