Parsing XML Files with SAX

      
/*
<PHONEBOOK>
<PERSON>
 <NAME>Joe Wang</NAME>
 <EMAIL>joe@yourserver.com</EMAIL>
 <TELEPHONE>202-999-9999</TELEPHONE>
 <WEB>www.java2s.com</WEB>
</PERSON>
<PERSON>
 <NAME>Karol</name>
 <EMAIL>karol@yourserver.com</EMAIL>
 <TELEPHONE>306-999-9999</TELEPHONE>
 <WEB>www.java2s.com</WEB>
</PERSON>
<PERSON>
 <NAME>Green</NAME>
 <EMAIL>green@yourserver.com</EMAIL>
 <TELEPHONE>202-414-9999</TELEPHONE>
 <WEB>www.java2s.com</WEB>
</PERSON>
</PHONEBOOK>

*/

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

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

public class NameLister {

  public static void main(String args[]) {

    if (args.length != 1) {
      System.err.println("Usage: java NameLister xmlfile.xml");
      System.exit(-1);
    }

    try {

      SAXParserFactory factory = SAXParserFactory.newInstance();
      SAXParser saxParser = factory.newSAXParser();

      DefaultHandler handler = new DefaultHandler() {
        boolean name = false;

        public void startElement(String uri, String localName,
            String qName, Attributes attributes)
            throws SAXException {
          if (qName.equalsIgnoreCase("NAME")) {
            name = true;
          }
        }

        public void characters(char ch[], int start, int length)
            throws SAXException {
          if (name) {
            System.out.println("Name: "
                + new String(ch, start, length));
            name = false;
          }
        }
      };

      saxParser.parse(args[0], handler);

    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Related examples in the same category

1.	SAX Demo
2.	Duplicates XML Files
3.	A Program to Display the Input from a SAX Parser
4.	SAX Checker
5.	A Content Handler to Output a Sorted List as HTML
6.	A Content Handler to Output a Sorted List
7.	Simple lister - extract name and children tags
8.	SAX Tree Validator
9.	SAX Tree Viewer
10.	Accessing character data (CDATA) of XML element
11.	Accessing features of the SAX parser implementation
12.	Configuring SAX parser factory to produce alternate parser
13.	Extracting attribute values from XML elements
14.	Handling SAX errors during parsing
15.	Using XML locator to indicate current parser position
16.	Filter to write an XML document from a SAX event stream
17.	XML utility methods that only depend on the JDK
18.	Utility class for xml/sax handling
19.	Create Xml Reader
20.	Sax to DOM converter
21.	Produce a SAX stream from a DOM Document
22.	SAX2 writer: register a SAX2 ContentHandler and receive the callbacks in order to print a document that is parsed.
23.	Register a SAX2 ContentHandler and receive callbacks to print information about the document.
24.	Provides a complete trace of SAX2 events for files parsed.
25.	The program prints all hyperlinks links of an XHTML web page

Parsing XML Files with SAX : SAX « XML « Java

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