Pull解析xml文件

package cn.itcast.service;


import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;


import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlSerializer;


import android.util.Xml;


import cn.itcast.domain.Person;
/**
 * 采用Pull解析xml文件
 */
public class PullPersonService {

public static void save(List<Person> persons, OutputStream outStream) throws Exception{
XmlSerializer serializer = Xml.newSerializer();
serializer.setOutput(outStream, "UTF-8");
serializer.startDocument("UTF-8", true);
serializer.startTag(null, "persons");
for(Person person : persons){
serializer.startTag(null, "person");
serializer.attribute(null, "id", person.getId().toString());
serializer.startTag(null, "name");
serializer.text(person.getName());
serializer.endTag(null, "name");

serializer.startTag(null, "age");
serializer.text(person.getAge().toString());
serializer.endTag(null, "age");

serializer.endTag(null, "person");
}
serializer.endTag(null, "persons");
serializer.endDocument();
outStream.flush();
outStream.close();
}


public static List<Person> getPersons(InputStream inStream) throws Exception{
Person person = null;
List<Person> persons = null;
XmlPullParser pullParser = Xml.newPullParser();
pullParser.setInput(inStream, "UTF-8");
int event = pullParser.getEventType();//触发第一个事件
while(event!=XmlPullParser.END_DOCUMENT){
switch (event) {
case XmlPullParser.START_DOCUMENT:
persons = new ArrayList<Person>();
break;
case XmlPullParser.START_TAG:
if("person".equals(pullParser.getName())){
int id = new Integer(pullParser.getAttributeValue(0));
person = new Person();
person.setId(id);
}
if(person!=null){
if("name".equals(pullParser.getName())){
person.setName(pullParser.nextText());
}
if("age".equals(pullParser.getName())){
person.setAge(new Short(pullParser.nextText()));
}
}
break;

case XmlPullParser.END_TAG:
if("person".equals(pullParser.getName())){
persons.add(person);
person = null;
}
break;
}
event = pullParser.next();
}
return persons;
}

}

测试类：

public void testPullgetPersons() throws Throwable{
InputStream inStream = this.getClass().getClassLoader().getResourceAsStream("person.xml");
List<Person> persons = PullPersonService.getPersons(inStream);
for(Person person : persons){
Log.i(TAG, person.toString());
}
}