pullxml操作xml

package com.kk.android.test;

import java.io.File;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlSerializer;

import android.test.AndroidTestCase;
import android.util.Log;
import android.util.Xml;

/**
 * 使用xmlpull库操作xml
 * @author MyPC
 *
 */
public class PullParserPersonTest extends AndroidTestCase {
    private static final String TAG="PullParserPersonTest";
    
    /**
     * 解析xml
     * @throws Exception
     */
    public void testRead() throws Exception {
        InputStream personFile=getClass().getClassLoader().getResourceAsStream("person.xml");
        List<Person> personList = null;
        Person person=null;
        XmlPullParser parser=Xml.newPullParser();
        parser.setInput(personFile, "utf-8");
        int eventType=parser.getEventType(); //产生第一个事件
        
        while(eventType!=XmlPullParser.END_DOCUMENT){
            switch (eventType){
            
            case XmlPullParser.START_DOCUMENT:
                personList=new ArrayList<Person>();
                break;
            case XmlPullParser.START_TAG:
                String tagName=parser.getName();//获取解析器当前指向的元素的名称
                if("person".equals(tagName)){
                    person=new Person();
                    person.setId(Integer.valueOf(parser.getAttributeValue(0)));
                }
                if(person!=null){
                    if(tagName.equals("name")){
                        person.setName(parser.nextText());
                    }
                    if(tagName.equals("age")){
                        person.setAge(Integer.valueOf(parser.nextText()));
                    }
                }
                break;
            case XmlPullParser.END_TAG:
                if("person".equals(parser.getName())){
                    personList.add(person);
                    person=null;
                }
                break;
            }
            eventType=parser.next();
        }
        
        for(Person p:personList){
            Log.i(TAG, p.toString());
        }
        
    }
    
    /**
     * 生成xml
     * @throws Exception
     */
    public void write()throws Exception{
        File file=new File(getContext().getFilesDir(),"message.xml");
        if(!file.exists())file.createNewFile();
        Writer writer=new FileWriter(file);
        XmlSerializer serializer=Xml.newSerializer();
        serializer.setOutput(writer);
        serializer.startDocument(null, true);
        serializer.startTag(null, "message");
        for(int i=0;i<100;i++){
            
            serializer.startTag(null,"name");
            serializer.attribute(null, "id", i+"");
            serializer.text("name"+i);
            serializer.endTag(null,"name");
            
            serializer.startTag(null, "age");
            serializer.text(i+"");
            serializer.endTag(null, "age");
        }
        serializer.endTag(null, "message");
        serializer.endDocument();
    }
    
    
    
    private class Person {
        private Integer id;
        private Integer age;
        private String name;

        public Integer getId() {
            return id;
        }

        public void setId(Integer id) {
            this.id = id;
        }

        public Integer getAge() {
            return age;
        }

        public void setAge(Integer age) {
            this.age = age;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "id:"+id+" name:"+name+" age:"+age;
        }
        
        
    }    

}