saxreader.java

写xml文件的相关类,可以直接应用到项目

package xmlwriter;

import java.io.File;
import java.io.IOException;

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 SAXReader extends DefaultHandler
{
    java.util.Stack tags = new java.util.Stack();

    //--------------XML Content-------------
    String text = null;

    String url = null;

    String author = null;

    String description = null;

    String day = null;

    String year = null;

    String month = null;

    //----------------------------------------------

    public void endDocument() throws SAXException
    {
        System.out.println("------Parse End--------");
    }

    public void startDocument() throws SAXException
    {
        System.out.println("------Parse Begin--------");

    }

    public void startElement(String p0, String p1, String p2, Attributes p3)
            throws SAXException
    {
        tags.push(p1);
    }

    public void endElement(String p0, String p1, String p2) throws SAXException
    {
        tags.pop();
        if (p1.equals("link"))
            printout();
    }

    public void characters(char[] p0, int p1, int p2) throws SAXException
    {
        String tag = (String) tags.peek();
        if (tag.equals("text"))
            text = new String(p0, p1, p2);
        else if (tag.equals("url"))
            url = new String(p0, p1, p2);
        else if (tag.equals("author"))
            author = new String(p0, p1, p2);
        else if (tag.equals("day"))
            day = new String(p0, p1, p2);
        else if (tag.equals("month"))
            month = new String(p0, p1, p2);
        else if (tag.equals("year"))
            year = new String(p0, p1, p2);
        else if (tag.equals("description"))
            year = new String(p0, p1, p2);
    }

    private void printout()
    {
        System.out.print("Content: ");
        System.out.println(text);
        System.out.print("URL: ");
        System.out.println(url);
        System.out.print("Author: ");
        System.out.println(author);
        System.out.print("Date: ");
        System.out.println(day + "-" + month + "-" + year);
        System.out.print("Description: ");
        System.out.println(description);
        System.out.println();
    }

    static public void main(String[] args)
    {
        String filename = null;
        boolean validation = false;
        filename = "links.xml";
        SAXParserFactory spf = SAXParserFactory.newInstance();
        SAXParser saxParser = null;

        try
        {
            saxParser = spf.newSAXParser();
        }
        catch (Exception ex)
        {
            System.err.println(ex);
            System.exit(1);
        }
        try
        {
            saxParser.parse(new File(filename), new SAXReader());
        }
        catch (SAXException se)
        {
            System.err.println(se.getMessage());
            System.exit(1);
        }
        catch (IOException ioe)
        {
            System.err.println(ioe);
            System.exit(1);
        }
    }

}