java 读取XML

这是其中之一，附件更多。。。

 

SAX版

java 代码

package com.mobi.bean;

import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import java.util.*;
import java.io.*;

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);
        }
    }

}

 

Factory版

package com.mobi.bean;

import javax.xml.parsers.*;
import org.w3c.dom.*;

public class xmldisplay
{
    public static void main(String args[])
    {
        try
        {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document doc = builder.parse("links.xml");
            doc.normalize();
            NodeList links = doc.getElementsByTagName("link");
            for (int i = 0; i < links.getLength(); i++)
            {
                Element link = (Element) links.item(i);
                System.out.print("Content: ");
                System.out.println(link.getElementsByTagName("text").item(0).getFirstChild().getNodeValue());
                System.out.print("URL: ");
                System.out.println(link.getElementsByTagName("url").item(0).getFirstChild().getNodeValue());
                System.out.print("Author: ");
                System.out.println(link.getElementsByTagName("author").item(0).getFirstChild().getNodeValue());
                System.out.print("Date: ");
                Element linkdate = (Element) link.getElementsByTagName("date").item(0);
                String day = linkdate.getElementsByTagName("day").item(0).getFirstChild().getNodeValue();
                String month = linkdate.getElementsByTagName("month").item(0).getFirstChild().getNodeValue();
                String year = linkdate.getElementsByTagName("year").item(0).getFirstChild().getNodeValue();
                System.out.println(day + "-" + month + "-" + year);
                System.out.print("Description: ");
                System.out.println(link.getElementsByTagName("description").item(0).getFirstChild().getNodeValue());
                System.out.println();
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

    }
}