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