有关Android 平台解析ＸＭＬ

项目总体结构图

person．xml

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

    <persons>

        <person id="1">

            <age>19</age>

            <name>张三</name>

        </person>

        <person id="2">

            <age>20</age>

            <name>王五</name>

        </person>

    </persons>

MainActivity

package com.xml2;



import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;



public class MainActivity extends Activity {



    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

    }



    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

}

Person

/**

 * 

 */

package com.zhou.entity;





/**

 * @author zyw

 * @Email [email protected]

 * 2012-12-30

 */

public class Person {

    private Integer id;

    private Integer age;

    private String name;

    

    

    public Person() {

    }

    public Person(Integer id, Integer age, String name) {

        super();

        this.id = id;

        this.age = age;

        this.name = 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 "Person [id=" + id + ", age=" + age + ", name=" + name + "]";

    }

    

    

}

PersonServer

/**

 * 

 */

package com.zhou.server;



import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.List;



import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

import org.xmlpull.v1.XmlPullParserFactory;

import org.xmlpull.v1.XmlSerializer;



import android.util.Xml;



import com.zhou.entity.Person;



/**

 * @author zyw

 * @Email [email protected]

 * 2012-12-30

 */

public class PersonServer {

    /**

     * 

     * @param xml

     * @return

     * @throws Exception

     */

    public static List<Person> getPersons(InputStream xml) throws Exception{

        List<Person> persons=null;

        Person person=null;

        XmlPullParser pullParser=Xml.newPullParser(); //XmlPullParserFactory.newInstance().newPullParser();

        pullParser.setInput(xml, "UTF-8");

        int event=pullParser.getEventType();

        while(event!=XmlPullParser.END_DOCUMENT){

            switch (event) {

            case XmlPullParser.START_DOCUMENT:

                persons=new ArrayList<Person>();

                break;

                

            case XmlPullParser.START_TAG:

                if("person".equals(pullParser.getName())){

                    int id=new Integer(pullParser.getAttributeValue(0));

                    person=new Person();

                    person.setId(id);

                }

                

                if("age".equals(pullParser.getName())){

                    int age=new Integer(pullParser.nextText());

                    person.setAge(age);

                }

                

                if("name".equals(pullParser.getName())){

                    String name=pullParser.nextText();

                    person.setName(name);

                }

                break;

                

            case XmlPullParser.END_TAG:

                if("person".equals(pullParser.getName())){

                    persons.add(person);

                    person=null;

                }

                break;

            }

            event=pullParser.next();

            

        }

        return persons;

        

    }

    

    /**

     * 保存数据

     * @param persons  数据

     * @param out 输出方向

     * @throws Exception

     */

    public static void save (List<Person> persons,OutputStream out ) throws Exception{

        XmlSerializer serializer=Xml.newSerializer();

        serializer.setOutput(out, "UTF-8");

        serializer.startDocument("UTF-8", true);//第一个参数 头文件的编码 第二个 文件是否可以单独存在

        serializer.startTag(null, "persons");

        for (Person person : persons) {

            serializer.startTag(null, "person");

            serializer.attribute(null, "id", person.getId().toString());

            

            serializer.startTag(null, "name");

            serializer.text(person.getName());

            serializer.endTag(null, "name");

            

            serializer.startTag(null, "age");

            serializer.text(person.getAge().toString());

            serializer.endTag(null, "age");

            

            serializer.endTag(null, "person");

        }

        serializer.endTag(null, "persons");

        serializer.endDocument();

        out.flush();

        out.close();

        

    }

    

}

/**

 * 

 */

package com.zhou.test;



import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.util.ArrayList;

import java.util.List;



import com.zhou.entity.Person;

import com.zhou.server.PersonServer;



import android.test.AndroidTestCase;

import android.util.Log;

import android.widget.AbsListView;



/**

 * @author zyw

 * @Email [email protected]

 * 2012-12-30

 */

public class PersonServerTest extends AndroidTestCase{

    private static final String tag="message";

    public void testPerson() throws Exception{

        InputStream xml=this.getClass().getClassLoader().getResourceAsStream("person.xml");

        List<Person> persons=PersonServer.getPersons(xml);

        for (Person person : persons) {

            System.out.println(person.toString());

            Log.i(tag, person.toString());

        }

    }

    

    public void testsave() throws Exception{

        List<Person> persons=new ArrayList<Person>();

        persons.add(new Person(1, 12, "Luke"));

        persons.add(new Person(2, 22, "张三"));

        persons.add(new Person(3, 42, "周周"));

        //<包>/files

        File file=new File(getContext().getFilesDir(),"person2.xml");

        FileOutputStream outStream=new FileOutputStream(file);

        

        PersonServer.save(persons, outStream);

    }



}

 

 源码下载地址：http://pan.baidu.com/share/link?shareid=215007&uk=1931815082