Re: XML and Java from Beginner

privateson@hotmail.com wrote:


The code attached below can parse that XML.

But is it a web service ?

If it is then you should not be parsing the XML manual. You
should generate a client stub from the WSDL so you can call
a method and get an int array returned without you having
to know anything about XML.

Arne

==============================================

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

public class SAXDemo {
    public static void main(String[] args) {
       ArrayList<String> result = new ArrayList<String>();
       try {
          SAXParserFactory spf = SAXParserFactory.newInstance();
          SAXParser sp = spf.newSAXParser();
          XMLReader xr = sp.getXMLReader();
          xr.setContentHandler(new MySaxParser(result));
          xr.parse("C:\\demo.xml");
       } catch (FactoryConfigurationError e) {
          e.printStackTrace();
       } catch (ParserConfigurationException e) {
          e.printStackTrace();
       } catch (SAXException e) {
          e.printStackTrace();
       } catch (IOException e) {
          e.printStackTrace();
       }
       for(String item : result) {
           System.out.println(item);
       }
    }
}

class MySaxParser extends DefaultHandler {
    private StringBuffer element = new StringBuffer();
    private ArrayList<String> result;
    public MySaxParser(ArrayList<String> result) {
       this.result = result;
    }
    public void characters(char buf[], int offset, int len) throws
SAXException {
       element.append(new String(buf, offset, len));
       return;
    }
    public void startElement(String namespaceURI, String localName,
String rawName, Attributes atts) throws SAXException {
       if (rawName.equals("int")) {
          element = new StringBuffer();
       }
       return;
    }
    public void endElement(String namespaceURI, String localName, String
rawName) throws SAXException {
       if (rawName.equals("int")) {
          result.add(element.toString());
       }
       return;
    }
}