52 lines
1.9 KiB
Java
52 lines
1.9 KiB
Java
import java.io.IOException;
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import java.io.StringReader;
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import org.xml.sax.Attributes;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import org.xml.sax.XMLReader;
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import org.xml.sax.helpers.DefaultHandler;
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import org.xml.sax.helpers.XMLReaderFactory;
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public class StudentHandler extends DefaultHandler {
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public static void main(String[] args)throws Exception{
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String xml = "<Students>\n"+
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"<Student Name=\"April\" Gender=\"F\" DateOfBirth=\"1989-01-02\" />\n"+
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"<Student Name=\"Bob\" Gender=\"M\" DateOfBirth=\"1990-03-04\" />\n"+
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"<Student Name=\"Chad\" Gender=\"M\" DateOfBirth=\"1991-05-06\" />\n"+
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"<Student Name=\"Dave\" Gender=\"M\" DateOfBirth=\"1992-07-08\">\n"+
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" <Pet Type=\"dog\" Name=\"Rover\" />\n"+
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"</Student>\n"+
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"<Student DateOfBirth=\"1993-09-10\" Gender=\"F\" Name=\"Émily\" />\n"+
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"</Students>";
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StudentHandler handler = new StudentHandler();
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handler.parse(new InputSource(new StringReader(xml)));
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}
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public void parse(InputSource src) throws SAXException, IOException {
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XMLReader parser = XMLReaderFactory.createXMLReader();
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parser.setContentHandler(this);
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parser.parse(src);
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}
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@Override
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public void characters(char[] ch, int start, int length) throws SAXException {
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//if there were text as part of the elements, we would deal with it here
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//by adding it to a StringBuffer, but we don't have to for this task
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super.characters(ch, start, length);
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}
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@Override
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public void endElement(String uri, String localName, String qName) throws SAXException {
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//this is where we would get the info from the StringBuffer if we had to,
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//but all we need is attributes
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super.endElement(uri, localName, qName);
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}
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@Override
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public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
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if(qName.equals("Student")){
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System.out.println(attributes.getValue("Name"));
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}
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}
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}
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