xmlpull 解析 xml 的简单实例

在上文中介绍了使用sax方式解析xml，这里介绍下在Android中极力推荐的xmlpull方式解析xml。xmlpull不仅仅可以使用在Android上，同样也适用于javase，但在javase环境下，你需要自己去获取xmlpull所依赖的类库。
环境：

kxml2-2.3.0.jar

xmlpull_1_1_3_4c.jar

以上两个jar分别从以下网站下载:

http://www.xmlpull.org/ xmlpull

http://kxml.sourceforge.net/ kxml

xml文件:

<? xml version="1.0" encoding="UTF-8" ?>
< root >
< student id ="1" group ="1" >
< name > 张三 </ name >
< sex > 男 </ sex >
< age > 18 </ age >
< email > zhangsan@163.com </ email >
< birthday > 1987-06-08 </ birthday >
< memo > 好学生 </ memo >
</ student >
< student id ="2" group ="2" >
< name > 李四 </ name >
< sex > 女 </ sex >
< age > 18 </ age >
< email > lisi@163.com </ email >
< birthday > 1987-06-08 </ birthday >
< memo > 好学生 </ memo >
</ student >
< student id ="3" group ="3" >
< name > 小王 </ name >
< sex > 男 </ sex >
< age > 18 </ age >
< email > xiaowang@163.com </ email >
< birthday > 1987-06-08 </ birthday >
< memo > 好学生 </ memo >
</ student >
< student id ="4" group ="4" >
< name > 小张 </ name >
< sex > 男 </ sex >
< age > 18 </ age >
< email > xiaozhang@163.com </ email >
< birthday > 1987-06-08 </ birthday >
< memo > 好学生 </ memo >
</ student >
< student id ="5" group ="5" >
< name > 小明 </ name >
< sex > 男 </ sex >
< age > 18 </ age >
< email > xiaoming@163.com </ email >
< birthday > 1987-06-08 </ birthday >
< memo > 好学生 </ memo >
</ student >
</ root >

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) {
this .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 < Student > PullParseXML(){

List < Student > list = null ;
Student student = null ;

// 构建XmlPullParserFactory
try {
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 < Student > ();
break ;
// 开始节点
case XmlPullParser.START_TAG:
// 判断如果其实节点为student
if ( " 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name
student.setName(xmlPullParser.nextText());
} else if ( " sex " .equals(nodeName)){
// 设置sex
student.setSex(xmlPullParser.nextText());
} else if ( " age " .equals(nodeName)){
// 设置age
student.setAge(Integer.parseInt(xmlPullParser.nextText()));
} else if ( " email " .equals(nodeName)){
// 设置email
student.setEmail(xmlPullParser.nextText());
} else if ( " birthday " .equals(nodeName)){
// 设置birthday
student.setBirthday(xmlPullParser.nextText());
} else if ( " memo " .equals(nodeName)){
// 设置memo属性
student.setMemo(xmlPullParser.nextText());
}
break ;
// 结束节点
case XmlPullParser.END_TAG:
if ( " student " .equals(nodeName)){
list.add(student);
student = null ;
}
break ;
default :
break ;
}
eventType = xmlPullParser.next();
}
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
} catch (XmlPullParserException e) {
e.printStackTrace();
}

return list;
}

public static void main(String[] args) {
List < Student > list = new PullParseXml().PullParseXML();
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());
}
}

}

注：若工程中缺少kxml2-2.3.0.jar文件则会报以下异常信息:

你应该添加kxml2-2.3.0.jar包到你的classpath下

效果图: