books.xml：
<?xml version="1.0" encoding="utf-8"?> <books> <book id="12" code="a"> <name>thinking in java</name> <price>85.5</price> </book> <book id="15" code="b"> <name>Spring in Action</name> <price>39.0</price> </book> </books>
MyContentHandler.java：
package com.example.xmlparse; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; public class MyContentHandler extends DefaultHandler { private String name; private String price; private String tagName; @Override public void startDocument() throws SAXException { // TODO Auto-generated method stub System.out.println(".............startDocument............."); } @Override public void endDocument() throws SAXException { // TODO Auto-generated method stub System.out.println(".............endDocument............."); } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { // TODO Auto-generated method stub System.out.println(".............startElement............."); tagName = localName; if(localName.equals("book")) { // 获取标签的全部属性 for(int i=0; i<attributes.getLength(); i++) { System.out.println(attributes.getLocalName(i) + " = " + attributes.getValue(i)); } } } @Override public void endElement(String uri, String localName, String qName) throws SAXException { // TODO Auto-generated method stub System.out.println(".............endElement............."); tagName = ""; if(localName.equals("book")) { this.printout(); } } @Override public void characters(char[] ch, int start, int length) throws SAXException { // TODO Auto-generated method stub System.out.println(".............characters............."); System.out.println(tagName); if(tagName.equals("name")) { name = new String(ch, start, length); }else if(tagName.equals("price")) { price = new String(ch, start, length); } } private void printout() { System.out.println("name:" + name); System.out.println("price:" + price); } }
执行代码结果：
.............startDocument............. .............startElement............. .............characters............. books .............characters............. books .............startElement............. id = 12 code = a .............characters............. book .............characters............. book .............startElement............. .............characters............. name .............endElement............. .............characters............. .............characters............. .............startElement............. .............characters............. price .............endElement............. .............characters............. .............characters............. .............endElement............. name:thinking in java price:85.5 .............characters............. .............characters............. .............startElement............. id = 15 code = b .............characters............. book .............characters............. book .............startElement............. .............characters............. name .............endElement............. .............characters............. .............characters............. .............startElement............. .............characters............. price .............endElement............. .............characters............. .............characters............. .............endElement............. name:Spring in Action price:39.0 .............characters............. .............endElement............. .............endDocument.............
注意：
XML报文中行尾的 跟行首的 都会调用characters