<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<书架>
<书>
    <书名>java从入门到放弃</书名>
    <作者>呵呵</作者>
    <售价>0.01</售价>
</书>
<书>
    <书名>c从入门到精通</书名>
    <作者>我好</作者>
    <售价>1.00</售价>
</书>
</书架>

package com;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * 2017/10/28
 * 说明：
 */
public class SAXDemo {
    public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {
        List<Book> books = new ArrayList<>();

        //使用SAXParserFactory创建SAX解析工厂
        SAXParserFactory spf = SAXParserFactory.newInstance();
        //通过SAX解析工厂得到解析对象
        SAXParser sp= spf.newSAXParser();
        //通过解析器对象得到一个XML的读取器
        XMLReader xmlReader = sp.getXMLReader();
        //设置读取器的事件处理器
        xmlReader.setContentHandler(new DefaultHandler(){
            private Book book = null;
            private String currentTagName;//当前读取的元素的名称


            public void startElement (String uri, String localName, String qName, Attributes attributes) throws SAXException {
                if("书".equals(qName)){
                    book = new Book();

                }
                currentTagName = qName;
            }
            public void endElement (String uri, String localName, String qName) throws SAXException {
                if("书".equals(qName)){
                    books.add(book);//读到书标记的结束，把书对象存起来
                }
                currentTagName = null;
            }
            public void characters (char ch[], int start, int length) throws SAXException {
                if("书名".equals(currentTagName)){
                    book.setName(new String(ch,start,length));
                }
                if("作者".equals(currentTagName)){
                    book.setAuthor(new String(ch,start,length));
                }
                if("售价".equals(currentTagName)){
                    book.setPrice(new String(ch,start,length));
                }
            }


        });
        //解析xml文件
        xmlReader.parse("D:\\code\\web\\src\\main\\webapp\\book.xml");
        for(Book b:books){
            System.out.println(b);
        }


    }
}