Android: xml Parsing

Android: xml Parsing

 
 
  
   
    Liri
   30
  
  
   
    Liyue
   25
  
 

package org.fun.domain;public class Person {private Integer id;private String name;private Short age;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Short getAge() {return age;}public void setAge(Short age) {this.age = age;}}

package org.fun.service;import java.io.InputStream;import java.util.ArrayList;import java.util.List;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.fun.domain.Person;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class SAXPersonService {public List
 
   getPersons(InputStream inStream) throws Throwable {SAXParserFactory factory = SAXParserFactory.newInstance();SAXParser parser = factory.newSAXParser();PersonParser personParser = new PersonParser();parser.parse(inStream, personParser);return personParser.getPersons();}private final class PersonParser extends DefaultHandler {private List
  
    persons = null;private String tag = null;private Person person = null;public List
   
     getPersons() {return persons;}@Overridepublic void characters(char[] ch, int start, int length)throws SAXException {if (tag != null) {String data = new String(ch, start, length);if ("name".equals(tag)) {person.setName(data);} else if ("age".equals(tag)) {person.setAge(new Short(data));}}}@Overridepublic void endElement(String uri, String localName, String qName)throws SAXException {if ("person".equals(localName)) {persons.add(person);person = null;}tag = null;}@Overridepublic void startDocument() throws SAXException {persons = new ArrayList
    
     ();}@Overridepublic void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException {if ("person".equals(localName)) {person = new Person();person.setId(new Integer(attributes.getValue(0)));}tag = localName;}}}
    
   
  
 

package org.fun.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.fun.domain.Person;import org.w3c.dom.Document;import org.w3c.dom.Element;import org.w3c.dom.Node;import org.w3c.dom.NodeList;public class DOMPersonService {public static List
 
   getPersons(InputStream inStream)throws Throwable {List
  
    persons = new ArrayList
   
    ();DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();DocumentBuilder builder = factory.newDocumentBuilder();Document document = builder.parse(inStream);Element root = document.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 j = 0; j < personNodes.getLength(); j++) {if (personChilds.item(j).getNodeType() == Node.ELEMENT_NODE) {Element childElement = (Element) personChilds.item(j);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;}}
   
  
 

Package org. fun. service; import java. io. inputStream; import java. io. outputStream; import java. util. arrayList; import java. util. list; import org. fun. domain. person; import org. xmlpull. v1.XmlPullParser; import org. xmlpull. v1.XmlSerializer; import android. util. xml; public class PullPersonService {/* ========================== pull generate the xml file public static void save (List
 
  
Persons, OutputStream outputStream) throws Throwable {XmlSerializer serializer = Xml. newSerializer (); serializer. setOutput (outputStream, "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 (); outputStream. flush (); outputStream. close ();} =================================================================== */public static List
  
   
GetPersons (InputStream inStream) throws Throwable {List
   
    
Persons = null; Person person = null; XmlPullParser parser = Xml. newPullParser (); parser. setInput (inStream, "UTF-8"); int eventType = parser. getEventType (); while (eventType! = XmlPullParser. END_DOCUMENT) {switch (eventType) {case XmlPullParser. START_DOCUMENT: persons = new ArrayList
    
     
(); Break; case XmlPullParser. START_TAG: String name = parser. getName (); if ("person ". equals (name) {person = new Person (); person. setId (new Integer (parser. getAttributeValue (0);} if (person! = Null) {if ("name ". equals (name) {person. setName (parser. nextText ();} if ("age ". equals (name) {person. setAge (new Short (parser. nextText () ;}} break; case XmlPullParser. END_TAG: if ("person ". equals (parser. getName () {persons. add (person); person = null;} break; default: break;} eventType = parser. next () ;}return persons ;}}