【学习笔记】JAVA之使用SAX解析XML文件

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思路：SAX工厂-->SAX解析器-->SAX阅读器-->注册事件处理-->解析开始。

对应代码：

public class TestSAX {public static void main(String[] args) throws Exception{SAXParserFactory factory = SAXParserFactory.newInstance();SAXParser parser = factory.newSAXParser();XMLReader reader = parser.getXMLReader();reader.setContentHandler(new MyContentHandler());reader.parse("book.xml");}}class MyContentHandler extends DefaultHandler {private String elementName = null;@Overridepublic void startDocument() throws SAXException {System.out.println("文档解析开始>>>>>>>>>>>>>>>>>>>>>>>>");}@Overridepublic void startElement(String arg0, String arg1, String arg2,Attributes arg3) throws SAXException {elementName = arg2;}@Overridepublic void characters(char[] arg0, int arg1, int arg2) throws SAXException {if ("书名".equals(elementName)) {System.out.println(new String(arg0, arg1, arg2));}}@Overridepublic void endElement(String arg0, String arg1, String arg2)throws SAXException {elementName = null;}@Overridepublic void endDocument() throws SAXException {System.out.println("文档解析结束>>>>>>>>>>>>>>>>>>>>>>>>");}}

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