Android编程解析XML文件的方法详解【基于XmlPullParser】

<?xml version="1.0" encoding="UTF-8"?>
<colleagues>
  <colleague id="1">
    <name>耗子</name>
    <age>24</age>
    <sex>boy</sex>
  </colleague>
  <colleague id="2">
    <name>璐璐</name>
    <age>28</age>
    <sex>girl</sex>
  </colleague>
  <colleague id="3">
    <name>陈善</name>
    <age>26</age>
    <sex>boy</sex>
  </colleague>
</colleagues>

package com.example.shakedemo;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.R.xml;
import android.util.Log;
import android.util.Xml;
public class XmlPullParserHelper {
  public static List<Colleague> getColleagues(String xmlFilePath) {
    List<Colleague> colleagues = new ArrayList<Colleague>();
    FileReader xmlReader = null;
    try {
      xmlReader = new FileReader(new File(xmlFilePath));
    } catch (FileNotFoundException e) {
      Log.e("wzy", "Couldn't find xml file " + xmlFilePath);
      return colleagues;
    }
    try {
      // 方式1: 使用 Android 提供的android.util.Xml 类获取 parser 对象
      XmlPullParser parser = Xml.newPullParser();
      // 方式2: 使用工厂类 XmlPullParserFactory
      // XmlPullParserFactory pullFactory =
      // XmlPullParserFactory.newInstance();
      // XmlPullParser parser = pullFactory.newPullParser();
      // 设置文件输入流
      parser.setInput(xmlReader);
      // 得到当前事件类型
      int eventType = parser.getEventType();
      Colleague colleague = null;
      while (eventType != XmlPullParser.END_DOCUMENT) {
        switch (eventType) {
        case XmlPullParser.START_DOCUMENT:
          break;
        case XmlPullParser.START_TAG:
          /**
           * 通过getName判断读到哪个标签, 然后通过nextText获取文本节点值，
           * 或者通过getAttributeValue(i)获取属性节点值
           */
          String name = parser.getName();
          if ("colleague".equals(name)) {
            colleague = new Colleague();
            colleague.setId(Integer.parseInt(parser.getAttributeValue(null, "id")));
          } else if ("name".equals(name)) {
            if (colleague != null) {
              colleague.setName(parser.nextText());
            }
          } else if ("age".equals(name)) {
            if (colleague != null) {
              colleague.setAge(Integer.parseInt(parser.nextText()));
            }
          } else if ("sex".equals(name)) {
            if (colleague != null) {
              colleague.setSex(parser.nextText());
            }
          }
          break;
        case XmlPullParser.END_TAG:
          if ("colleague".equals(parser.getName()) && colleague != null) {
            colleagues.add(colleague);
            colleague = null;
          }
          break;
        }
        eventType = parser.next();
      }
      xmlReader.close();
    } catch (XmlPullParserException e) {
      // Do nothing
    } catch (IOException e) {
      // Do nothing
    }
    return colleagues;
  }
}

package com.example.shakedemo;
public class Colleague {
  private int id;
  private int age;
  private String name;
  private String sex;
  public int getId() {
    return id;
  }
  public void setId(int id) {
    this.id = id;
  }
  public int getAge() {
    return age;
  }
  public void setAge(int age) {
    this.age = age;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
  public String getSex() {
    return sex;
  }
  public void setSex(String sex) {
    this.sex = sex;
  }
  @Override
  public String toString() {
    return "ID is " + id + ", Name is " + name + ", Sex is " + sex;
  }
}