android_好友列表XML解析构造

首先是FriendBean

package com.example.other;

public class FriendBean
{
    private String FName = null;
    private String FImg = null;
    private int iID = -1;

    public String getFName()
    {
        return FName;
    }

    public void setFName(String fName)
    {
        FName = fName;
    }

    public String getFImg()
    {

        return FImg;
    }

    public void setFImg(String fImg)
    {
        FImg = fImg;
    }

    public int getID()
    {
        return iID;
    }

    public void setID(int iId)
    {
        this.iID = iId;
    }

}

然后新建类FriendXMLContentHandler，使用sax解析xml

package com.example.other;

import java.util.ArrayList;
import java.util.List;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/*
 *
 * 解析如下xml
 * <friend id="1">
 * <fname></fname>
 * <fimg></fimg>
 * </friend>
 * <friend>。。。。
 *
 *
 * 使用：
 * public static List<friend> readXML(InputStream inStream)
 * {
 *         try {
 *            //创建解析器
 *            SAXParserFactory spf = SAXParserFactory.newInstance();
 *            SAXParser saxParser = spf.newSAXParser();
 *            //设置解析器的相关特性，true表示开启命名空间特性
 *            saxParser.setProperty("http://xml.org/sax/features/namespaces",true);
 *            XMLContentHandler handler = new XMLContentHandler();
 *            saxParser.parse(inStream, handler);
 *            inStream.close();
 *            return handler.getAllFriends();
 *            }
 *            catch (Exception e)
 *            {
 *                e.printStackTrace();
 *            }
 *      return null;
 *}
 *
 * */

public class FriendXMLContentHandler extends DefaultHandler
{
    private List<FriendBean> m_lFriends = null;

    private FriendBean m_currentFriend = null; // 记录当前对象
    private String m_tagName = null; // 当前解析的元素标签

    public List<FriendBean> getAllFriends()
    {
        return m_lFriends;
    }

    // 接到文档开始
    @Override
    public void startDocument() throws SAXException
    {
        // TODO Auto-generated method stub
        m_lFriends = new ArrayList<FriendBean>();
        super.startDocument();
    }

    // 开始解析
    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException
    {
        // TODO Auto-generated method stub
        if ( localName.equals("friend") )
        {
            m_currentFriend = new FriendBean();
            m_currentFriend.setID(Integer.parseInt(attributes.getValue("id")));
        }
        this.m_tagName = localName;
    }

    // 进入friend内
    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException
    {
        // TODO Auto-generated method stub
        if ( m_tagName != null )
        {
            String data = new String(ch, start, length);
            if ( m_tagName.equals("fname") )
            {
                this.m_currentFriend.setFName(data);
            } else if ( m_tagName.equals("fimg") )
            {
                this.m_currentFriend.setFImg(data);
            }
        }
    }

    //
    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException
    {
        // TODO Auto-generated method stub
        if ( localName.equals("friend") )
        {
            m_lFriends.add(m_currentFriend);
            m_currentFriend = null;
        }
        this.m_tagName = null;
    }

}