Android 开发工具类 12_PullXmlTools

xml 格式数据

 <?xml version="1.0" encoding="UTF-8"?>

 <user-list>
     <user id="1">
         <name>张三</name>
         <age>22</age>
     </user>

     <user id="2">
         <name>李四</name>
         <age>28</age>
     </user>

     <user id="3">
         <name>王五</name>
         <age>32</age>
     </user>

 </user-list>

XmlPullParserFactory 解析 xml 数据

 package com.example.dashu_xml;

 import java.io.IOException;
 import java.io.InputStream;
 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.integer;

 /**
  * pull解析xml
  * */
 public class PullXmlTools {
     public PullXmlTools() {
     }

     /**
      * inputStream通常为服务器端获取的io流 encode编码格式
      *
      * @throws XmlPullParserException
      * @throws IOException
      * @throws NumberFormatException
      * */
     public static List<User> parseXML(InputStream inputStream, String encode)
             throws XmlPullParserException, NumberFormatException, IOException {
         List<User> list = null;
         User user = null;// 装载每一个节点的内容
         XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
         // 获得xml解析类引用
         XmlPullParser pullParser = factory.newPullParser();
         pullParser.setInput(inputStream, encode);
         // 获得事件类型
         int eventType = pullParser.getEventType();
         // 判定是否解析到文档结束
         while (eventType != XmlPullParser.END_DOCUMENT) {
             switch (eventType) {
             case XmlPullParser.START_DOCUMENT:// 开始文档
                 list = new ArrayList<User>();
                 break;
             case XmlPullParser.START_TAG:// 开始节点
                 if ("user".equals(pullParser.getName())) {
                     user = new User();
                     int id = Integer.parseInt(pullParser.getAttributeValue(
                             null, "id").toString());
                     user.setId(id);
                 }
                 if (user != null) {
                     if ("name".equals(pullParser.getName())) {
                         String name = pullParser.nextText().toString();
                         user.setName(name);
                     }
                     if ("age".equals(pullParser.getName())) {
                         int age = Integer.parseInt(pullParser.nextText()
                                 .toString());// 取出id
                         user.setAge(age);
                     }
                 }
                 break;
             case XmlPullParser.END_TAG:// 结束节点时候
                 if ("user".equals(pullParser.getName())) {
                     list.add(user);
                     user = null;
                 }
                 break;
             default:
                 break;
             }
             eventType = pullParser.next();// 下一个解析标识
         }
         return list;
     }
 }

【参考文献】

http://blog.csdn.net/u010794950/article/details/24574627