android:xml解析

<?xml version="1.0" encoding="UTF-8"?><persons><person id="23"><name>Liri</name><age>30</age></person><person id="20"><name>Liyue</name><age>25</age></person></persons>

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<Person> 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<Person> persons = null;private String tag = null;private Person person = null;public List<Person> 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<Person>();}@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<Person> getPersons(InputStream inStream)throws Throwable {List<Person> persons = new ArrayList<Person>();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生成xml文件public static void save(List<Person> 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<Person> getPersons(InputStream inStream)throws Throwable {List<Person> 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<Person>();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;}}

更多相关文章

随机推荐