SAX解析

SAX解析与DOM解析相比，没有DOM好理解

主要特点：

startDocument

startElement

characters

endElement

endDocument

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sax解析时用到的解析器

SAXParserFactory factory = SAXParserFactory.newInstance();

System.out.println("222222");

SAXParser parser = factory.newSAXParser();

SaxForXml sax = new SaxForXml();

parser.parse(new File("newStudent.xml"), sax);