Android之DOM解析XML文件

package com.duantl.service;

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

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import com.duantl.domain.Person;

/**
* 采用DOM解析XML内容
*/
public class DOMPersonService {

public static List<Person> getPersons(InputStream inStream) throws Throwable{

List<Person> persons = new ArrayList<Person>();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document documnet = builder.parse(inStream);
Element root = documnet.getDocumentElement();
NodeList personNodes = root.getElementsByTagName("person");

for(int i=0 ; i < personNodes.getLength(); i++){
Person person = new Person();
Element personElement = (Element)personNodes.item(i);
person.setId(new Integer(personElement.getAttribute("id")));
NodeList personChilds = personElement.getChildNodes();

for(int y=0 ; y < personChilds.getLength(); y++){
if(personChilds.item(y).getNodeType()==Node.ELEMENT_NODE){//判断当前节点是否是元素类型节点
Element childElement = (Element)personChilds.item(y);
if("name".equals(childElement.getNodeName())){
person.setName(childElement.getFirstChild().getNodeValue());
}else if("age".equals(childElement.getNodeName())){
person.setAge(new Short(childElement.getFirstChild().getNodeValue()));
}
}
}

persons.add(person);
}

return persons;
}
}

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