I am trying to parse through a XML format String for example;
<params city="SANTA ANA" dateOfBirth="1970-01-01"/>
My goal is to add attributes name in an array list such as {city,dateOfBirth} and values of the attributes in another array list such as {Santa Ana, 1970-01-01} any advice, please help!
SAXParserFactory.SAXParser.YourHandler, which extends DefaultHandler.SAXParser and YourHandler.For example:
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
parser.parse(yourFile, new YourHandler());
} catch (ParserConfigurationException e) {
System.err.println(e.getMessage());
}
where, yourFile - object of the File class.
In YourHandler class:
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class YourHandler extends DefaultHandler {
String tag = "params"; // needed tag
String city = "city"; // name of the attribute
String value; // your value of the city
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if(localName.equals(tag)) {
value = attributes.getValue(city);
}
}
public String getValue() {
return value;
}
}`
More information for SAX parser and DefaultHandler here and here respectively.
Using JDOM (http://www.jdom.org/docs/apidocs/):
String myString = "<params city='SANTA ANA' dateOfBirth='1970-01-01'/>";
SAXBuilder builder = new SAXBuilder();
Document myStringAsXML = builder.build(new StringReader(myString));
Element rootElement = myStringAsXML.getRootElement();
ArrayList<String> attributeNames = new ArrayList<String>();
ArrayList<String> values = new ArrayList<String>();
List<Attribute> attributes = new ArrayList<Attribute>();
attributes.addAll(rootElement.getAttributes());
Iterator<Element> childIterator = rootElement.getDescendants();
while (childIterator.hasNext()) {
Element childElement = childIterator.next();
attributes.addAll(childElement.getAttributes());
}
for (Attribute attribute: attributes) {
attributeNames.add(attribute.getName());
values.add(attribute.getValue());
}
System.out.println("Attribute names: " + attributeNames);
System.out.println("Values: " + values);
