SAX方式解析XML - GOOGLE CODE.docx

/sxyx2008Sax、pull方式解析Xmlsax方式解析xmlxml文件:张三男181987-06-08好学生李四女181987-06-08好学生小王男181987-06-08好学生小张男181987-06-08好学生小明男181987-06-08好学生Xml对应的实体beanpackage com.parsexml.entity;public class Student private int id;private int group;private String name;private String sex;private int age;private String email;private String memo;private String birthday;public int getId() return id;public void setId(int id) this.id = id;public int getGroup() return group;public void setGroup(int group) this.group = group;public String getName() return name;public void setName(String name) = name;public String getSex() return sex;public void setSex(String sex) this.sex = sex;public int getAge() return age;public void setAge(int age) this.age = age;public String getEmail() return email;public void setEmail(String email) this.email = email;public String getMemo() return memo;public void setMemo(String memo) this.memo = memo;public String getBirthday() return birthday;public void setBirthday(String birthday) this.birthday = birthday;sax方式解析代码package com.parsexml;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.List;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;import com.parsexml.entity.Student;/* * 功能描述:采用sax方式解析XML * * author sxyx2008 * */public class SaxParseXml extends DefaultHandler/存放遍历集合private List list;/构建Student对象private Student student;/用来存放每次遍历后的元素名称(节点名称)private String tagName;public List getList() return list;public void setList(List list) this.list = list;public Student getStudent() return student;public void setStudent(Student student) this.student = student;public String getTagName() return tagName;public void setTagName(String tagName) this.tagName = tagName;/只调用一次 初始化list集合 Overridepublic void startDocument() throws SAXException list=new ArrayList();/调用多次 开始解析Overridepublic void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException if(qName.equals(student)student=new Student();/获取student节点上的id属性值student.setId(Integer.parseInt(attributes.getValue(0);/获取student节点上的group属性值student.setGroup(Integer.parseInt(attributes.getValue(1);this.tagName=qName;/调用多次 Overridepublic void endElement(String uri, String localName, String qName)throws SAXException if(qName.equals(student)this.list.add(this.student);this.tagName=null;/只调用一次Overridepublic void endDocument() throws SAXException /调用多次Overridepublic void characters(char ch, int start, int length)throws SAXException if(this.tagName!=null)String date=new String(ch,start,length);if(this.tagName.equals(name)this.student.setName(date);else if(this.tagName.equals(sex)this.student.setSex(date);else if(this.tagName.equals(age)this.student.setAge(Integer.parseInt(date);else if(this.tagName.equals(email)this.student.setEmail(date);else if(this.tagName.equals(birthday)this.student.setBirthday(date);else if(this.tagName.equals(memo)this.student.setMemo(date);public static void main(String args) SAXParser parser = null;try /构建SAXParserparser = SAXParserFactory.newInstance().newSAXParser();/实例化 DefaultHandler对象SaxParseXml parseXml=new SaxParseXml();/加载资源文件 转化为一个输入流InputStream stream=SaxParseXml.class.getClassLoader().getResourceAsStream(Student.xml);/调用parse()方法parser.parse(stream, parseXml);/遍历结果List list=parseXml.getList();for(Student student:list)System.out.println(id:+student.getId()+tgroup:+student.getGroup()+tname:+student.getName()+tsex:+student.getSex()+tage:+student.getAge()+temail:+student.getEmail()+tbirthday:+student.getBirthday()+tmemo:+student.getMemo(); catch (ParserConfigurationException e) e.printStackTrace(); catch (SAXException e) e.printStackTrace(); catch (IOException e) e.printStackTrace();效果图:Pull方式解析xml依赖的环境kxml2-2.3.0.jarxmlpull_1_1_3_4c.jar以上两个jar分别从以下网站下载:/ xmlpull/ kxmlxml文件:张三男181987-06-08好学生李四女181987-06-08好学生小王男181987-06-08好学生小张男181987-06-08好学生小明男181987-06-08好学生Xml对应的实体bean文件:package com.parsexml.entity;public class Student private int id;private int group;private String name;private String sex;private int age;private String email;private String memo;private String birthday;public int getId() return id;public void setId(int id) this.id = id;public int getGroup() return group;public void setGroup(int group) this.group = group;public String getName() return name;public void setName(String name) = name;public String getSex() return sex;public void setSex(String sex) this.sex = sex;public int getAge() return age;public void setAge(int age) this.age = age;public String getEmail() return email;public void setEmail(String email) this.email = email;public String getMemo() return memo;public void setMemo(String memo) this.memo = memo;public String getBirthday() return birthday;public void setBirthday(String birthday) this.birthday = birthday;Pull解析代码package com.parsexml;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.xmlpull.v1.XmlPullParser;import org.xmlpull.v1.XmlPullParserException;import org.xmlpull.v1.XmlPullParserFactory;import com.parsexml.entity.Student;public class PullParseXml public List PullParseXML()List list=null;Student student = null;/构建XmlPullParserFactorytry XmlPullParserFactory pullParserFactory=XmlPullParserFactory.newInstance();/获取XmlPullParser的实例XmlPullParser xmlPullParser=pullParserFactory.newPullParser();/设置输入流 xml文件xmlPullParser.setInput(Thread.currentThread().getContextClassLoader().getResourceAsStream(Student.xml), UTF-8);/开始int eventType=xmlPullParser.getEventType();try while(eventType!=XmlPullParser.END_DOCUMENT)String nodeName=xmlPullParser.getName();switch (eventType) /文档开始case XmlPullParser.START_DOCUMENT:list=new ArrayList();break;/开始节点case XmlPullParser.START_TAG:/判断如果其实节点为studentif(student.equals(nodeName)/实例化student对象student=new Student();/设置Id属性student.setId(Integer.parseInt(xmlPullParser.getAttributeValue(0);/设置Group属性student.setGroup(Integer.parseInt(xmlPullParser.getAttributeValue(1);else if(name.equals(nodeName)/设置namestudent.setName(xmlPullParser.nextText();else if(sex.equals(nodeName)/设置sexstudent.setSex(xmlPullParser.nextText();else if(age.equals(nodeName)/设置agestudent.setAge(Integer.parseInt(xmlPullParser.nextText();else if(email.equals(nodeName)/设置emailstudent.setEmail(xmlPullParser.nextText();else if(birthday.equals(nodeName)/设置birthdaystudent.setBirthday(xmlPullParser.nextText();else if(memo.equals(nodeName)/设置memo属性student