SAX解析XML-例子

1.要解析的xml

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

<employees>

    <employee id="001">

        <name>cici</name>

        <department>finace</department>

        <supervisor>lily</supervisor>

    </employee>

    <employee id="002">

        <name>alex</name>

        <department>develope</department>

        <supervisor>lily</supervisor>

    </employee>

</employees>

2.继承DefaultHandler的子类EmployeeHandler.java，重写方法

package sax;

import java.io.BufferedInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.List;

import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;

import javax.xml.parsers.SAXParser;

import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.SAXNotRecognizedException;

import org.xml.sax.SAXNotSupportedException;

import org.xml.sax.XMLReader;

import org.xml.sax.helpers.XMLReaderFactory;

public class SaxXMLTest {

    public static void main(String[] args) throws SAXException, ParserConfigurationException, IOException{

        readXMLBySaxParser();

        readXMLByXMLReader();

    }

    private static void readXMLBySaxParser() throws ParserConfigurationException,

            SAXException, IOException {

        SAXParserFactory factory = SAXParserFactory.newInstance();

        SAXParser parser = factory.newSAXParser();

        EmployeeHandler handler = new EmployeeHandler("employee");

        parser.parse("src\\sax\\employees.xml", handler);

        List<Map<String, String>> employees = handler.getEmployees();

        System.out.println(employees.toString());

    }

    private static void readXMLByXMLReader() throws SAXException,

            SAXNotRecognizedException, SAXNotSupportedException, FileNotFoundException, IOException {

        XMLReader reader = XMLReaderFactory.createXMLReader();

        //打开解析器验证的功能

        reader.setFeature("http://xml.org/sax/features/validation",true);

        //开启明明空间特性

        reader.setFeature("http://xml.org/sax/features/namespaces",true);

        EmployeeHandler handler = new EmployeeHandler("employee");

        reader.setContentHandler(handler);

        reader.parse(new InputSource(new BufferedInputStream(new FileInputStream("src\\sax\\employees.xml"))));

    }

}

3.测试类 SaxXMLTest.java,用SAXParser和XMLReader两种方式解析

package sax;

import java.io.BufferedInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.List;

import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;

import javax.xml.parsers.SAXParser;

import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.SAXNotRecognizedException;

import org.xml.sax.SAXNotSupportedException;

import org.xml.sax.XMLReader;

import org.xml.sax.helpers.XMLReaderFactory;

public class SaxXMLTest {

    public static void main(String[] args) throws SAXException, ParserConfigurationException, IOException{

        readXMLByHandler();

        readXMLByXMLReader();

    }

    private static void readXMLByHandler() throws ParserConfigurationException,

            SAXException, IOException {

        SAXParserFactory factory = SAXParserFactory.newInstance();

        SAXParser parser = factory.newSAXParser();

        EmployeeHandler handler = new EmployeeHandler("employee");

        parser.parse("src\\sax\\employees.xml", handler);

        List<Map<String, String>> employees = handler.getEmployees();

        System.out.println(employees.toString());

    }

    private static void readXMLByXMLReader() throws SAXException,

            SAXNotRecognizedException, SAXNotSupportedException, FileNotFoundException, IOException {

        XMLReader reader = XMLReaderFactory.createXMLReader();

        //打开解析器验证的功能

        reader.setFeature("http://xml.org/sax/features/validation",true);

        //开启明明空间特性

        reader.setFeature("http://xml.org/sax/features/namespaces",true);

        EmployeeHandler handler = new EmployeeHandler("employee");

        reader.setContentHandler(handler);

        reader.parse(new InputSource(new BufferedInputStream(new FileInputStream("src\\sax\\employees.xml"))));

    }

}

巴特西

SAX解析XML-例子

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