在Android应用中使用Pull解析XML文件（传智播客视频笔记）_weixin_33754913的博客

Service.java源码：

package com.sinaapp.ssun.service; import java.io.InputStream; import java.io.OutputStream; import java.util.*; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserFactory; import org.xmlpull.v1.XmlSerializer; import android.util.Xml; import com.sinaapp.ssun.domain.Person; public class Service { /** * 获取XML文件中的数据 * @param xml * @return * @throws Exception */ public static List<Person> getPersons(InputStream xml) throws Exception { List<Person> persons = null; XmlPullParser parser = XmlPullParserFactory.newInstance() .newPullParser(); // parser = Xml.newPullParser(); parser.setInput(xml, "UTF-8"); int event = parser.getEventType(); Person p = null; while (event != XmlPullParser.END_DOCUMENT) { switch (event) { case XmlPullParser.START_DOCUMENT: persons = new ArrayList<Person>(); break; case XmlPullParser.START_TAG: if("person".equals(parser.getName())){ p = new Person(); int id = Integer.parseInt(parser.getAttributeValue(0)); p.setId(id); } if("name".equals(parser.getName())){ String name = parser.nextText(); p.setName(name); } if("age".equals(parser.getName())){ int age = Integer.parseInt(parser.nextText()); p.setAge(age); } break; case XmlPullParser.END_TAG: if("person".equals(parser.getName())){ persons.add(p); p = null; } break; } event = parser.next(); } return persons; } /** * 保存数据到XML文件中 * @param persons * @param out * @throws Exception */ public static void save(List<Person> persons , OutputStream out) throws Exception{ XmlSerializer serializer = Xml.newSerializer(); serializer.setOutput(out, "UTF-8"); serializer.startDocument("UTF-8", true); serializer.startTag(null, "persons"); for(Person p: persons){ serializer.startTag(null, "person"); serializer.attribute(null, "person", p.getId()+""); serializer.startTag(null, "name"); serializer.text(p.getName()); serializer.endTag(null, "name"); serializer.startTag(null, "age"); serializer.text(p.getAge()+""); serializer.endTag(null, "age"); serializer.endTag(null, "person"); } serializer.endTag(null, "persons"); serializer.endDocument(); out.flush(); out.close(); } } Person.java源码： package com.sinaapp.ssu