SAX方式读取XML

Person.java

 

package org.email;

 

public class Person {

    private String name;

    private String e_mail;

 

    public String getName() {

       return name;

    }

 

    public void setName(String name) {

       this.name = name;

    }

 

    public String getE_mail() {

       return e_mail;

    }

 

    public void setE_mail(String e_mail) {

       this.e_mail = e_mail;

    }

}

 

 

SaxReadXml.java

 

package org.email;

 

import java.io.InputStream;

import java.util.ArrayList;

import java.util.List;

 

import org.xml.sax.Attributes;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.XMLReader;

import org.xml.sax.helpers.DefaultHandler;

import org.xml.sax.helpers.XMLReaderFactory;

 

public class SaxReadXml extends DefaultHandler {

    private Person person;

    private List<Person> personList;

    private String oo;

    public static final String RECORD = "RECORD";

    public static final String NAME = "NAME";

    public static final String E_MAIL = "E_MAIL";

 

    public List<Person> getPersonList() {

       return personList;

    }

 

    public List<Person> readXml(InputStream in) throws Exception {

       SaxReadXml srx = new SaxReadXml();

       XMLReader xr = XMLReaderFactory

              .createXMLReader("org.apache.xerces.parsers.SAXParser");

       xr.setContentHandler(srx);

       // xr.parse(new InputSource(new FileReader(""))); //乱码

       xr.parse(new InputSource(in));

       return srx.getPersonList();

    }

 

    public static void main(String[] args) {

       SaxReadXml srx = new SaxReadXml();

       try {

           List<Person> list = srx.readXml(srx.getClass().getClassLoader()

                  .getResourceAsStream("ff.xml"));

           for (Person p : list) {

              System.out.println(p.getName() + ":" + p.getE_mail());

           }

       } catch (Exception e) {

           // TODO Auto-generated catch block

           e.printStackTrace();

       }

 

    }

 

    @Override

    public void startDocument() throws SAXException {

       personList = new ArrayList<Person>();

    }

 

    @Override

    public void characters(char[] ch, int start, int length)

           throws SAXException {

       String data = new String(ch, start, length);

       if (E_MAIL.equals(oo)) {

           person.setE_mail(data);

       }

       if (NAME.equals(oo)) {

           person.setName(data);

       }

    }

 

    @Override

    public void startElement(String uri, String localName, String name,

           Attributes attributes) throws SAXException {

       if (RECORD.equals(localName)) {

           person = new Person();

           // person.setId(new Integer(attributes.getValue("ID")));

       }

       oo = localName;

 

    }

 

    @Override

    public void endElement(String uri, String localName, String name)

           throws SAXException {

       if (RECORD.equals(localName) && person != null) {

           personList.add(person);

           person = null;

       }

       oo = null;

    }

 

}

ff.xml

<?xml version="1.0" encoding="UTF-8"?>

<RECORDS>

<RECORD>

<NAME>XXX</NAME>

<E_MAIL>6364644915@qq.com</E_MAIL>

</RECORD>

<RECORD>

<NAME>BBBBB</NAME>

<E_MAIL>754545408010@qq.com</E_MAIL>

</RECORD>

</RECORDS>