parse_handler.java文件：

package com.hzhi.my_sax;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class parse_handler extends DefaultHandler{		private infor m_infor;	private school m_c_school;	private major m_c_major;		public parse_handler(infor i){		m_infor = i;	}		public void startElement(String uri, String localName, String name,			Attributes attributes) throws SAXException{				super.startElement(uri, localName, name, attributes);				// 当前元素学院		if (localName.equalsIgnoreCase(school.tag_name)){						String school_name = attributes.getValue("Name");			String code = attributes.getValue("Code");						school m_school = new school(school_name, code);			m_infor.add_school(m_school);			// 记录当前的学院			m_c_school = m_school;					}		// 当前元素有专业		else if (localName.equalsIgnoreCase(major.tag_name)){						String major_name = attributes.getValue("Name");			String code = attributes.getValue("Code");						major m_major = new major(major_name, code);			m_c_school.add_major(m_major);			// 记录当前的学院			m_c_major = m_major;								}		// 当前元素有班级		else if (localName.equalsIgnoreCase(clas.tag_name)){			String clas_name = attributes.getValue("Name");			String code = attributes.getValue("Code");			//如果其从属的专业不为空则添加其专业的班级列表			if(m_c_major != null) {				clas m_clas = new clas(clas_name, code);				m_c_major.add_clas(m_clas);			}		}					}}

该类的startElement()函数具体的完成了对XML文件的解析过程，并将解析结果放入变量m_infor中。