saxfour.java

xml 文件解析

package catpation7;
import javax.xml.parsers.*;

import org.xml.sax.helpers.*;
import org.xml.sax.*;
import java.io.*;
public class SAXFour {
    private final static String FILE_PATH="E:\\test_xml\\TestXML\\src\\catpation7\\Cha7_4.xml";
    
    public static void main(String[] args) {
        try{
        SAXParserFactory factory =SAXParserFactory.newInstance();
        factory.setNamespaceAware(true);
        SAXParser saxParser = factory.newSAXParser();
        Myhandler handler = new Myhandler();
        saxParser.parse(new File(FILE_PATH), handler);
        } catch (Exception e) {
            System.out.println(e);
        }        
    }

}
class Myhandler extends DefaultHandler {
    String str = null;
    int count = 0;
    public void endDocumnet () {
        System.out.printf("\n gong %d ge biaoji", count);
        System.out.printf("\n biao ji  shi yong de kong jian wei : %s", str);
        
    }
    public void startElement(String uri,String localName,String qName,Attributes atts) {
        count++;
        if(uri.length() > 0) {
            str = uri;            
        }
        System.out.print("<" + qName + ">");
        for(int k= 0; k<atts.getLength(); k++) {
            System.out.print(atts.getLocalName(k) + "=");
            System.out.print("\"" + atts.getValue(k) + "\"");
        }
        System.out.println(">");
        
        }
    public void endElement(String uri,String localName,String qName) {
        System.out.println("</" + qName + ">");
    }
}