How to get data using JDOM

Question

Hi,
I have this xml file stored in operator.xml
<Operator>
     <Customer>
          <Name>sam</Name>
          <Street>albert str.</Street>
          <ZipCode>45454</ZipCode>
          <City>NY</City>
          <Country>USA</Country>
          <EMailAddress>[email protected]</EMailAddress>
          <MeterNumber>1000</MeterNumber>
          <MeasuringUnit>kWh</MeasuringUnit>
          <Reading>
          <Month>1</Month>
          <Value>900</Value>
          </Reading>
          <Reading>
          <Month>2</Month>
          <Value>725</Value>
          </Reading>
          <Reading>
          <Month>3</Month>
          <Value>950</Value>
          </Reading>
     </Customer>
</Operator>I have the following getter statements in my code:
String name=req.getName();
int month=req.getMonth();Now, I want to get value for particular customer (by checking name for equality with getter) and for particular month( by checking for equality with getter).
I have written the following statements:
final String filename="operator.xml";
SAXBuilder builder=new SAXBuilder(true);
Document doc=builder.build(filename);
Element root=doc.getRootElement();How to proceed further using JDOM. I am confused with getChild(), getChildText() etc.,
thanks,

Answer 1

Obtain values with the JDom XPath class selectSingleNode and selectNodes methods.
SAXBuilder saxBuilder=new SAXBuilder("org.apache.xerces.parsers.SAXParser");
org.jdom.Document jdomDocument=saxBuilder.build(new File("c:/input.xml"));
org.jdom.Element zipcodeNode= (org.jdom.Element)(XPath.selectSingleNode(jdomDocument,"/Operator//Customer/zipCode"));