package com.android10;public class Person {    String pName ;    String pAge  ;        public String getpName() {        return pName;    }    public void setpName(String pName) {        this.pName = pName;    }    public String getpAge() {        return pAge;    }    public void setpAge(String pAge) {        this.pAge = pAge;    } }

package com.android10;public class Product {    private String name ;    private String age  ;    private Person person ;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getAge() {        return age;    }    public void setAge(String age) {        this.age = age;    }    public Person getPerson() {        return person;    }    public void setPerson(Person person) {        this.person = person;    }}

package com.android10;import java.util.List;public class ListBean {    private List
     
       root ;    public List
      
        getRoot() {        return root;    }    public void setRoot(List
       
         root) {        this.root = root;    }}
       
      
     

package com.android10;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.util.ArrayList;import java.util.List;import javax.xml.transform.OutputKeys;import javax.xml.transform.Source;import javax.xml.transform.Transformer;import javax.xml.transform.sax.SAXSource;import javax.xml.transform.sax.SAXTransformerFactory;import javax.xml.transform.stream.StreamResult;import org.xml.sax.InputSource;import android.app.Activity;import android.os.Bundle;import com.thoughtworks.xstream.XStream;public class MainActivity extends Activity {    @Override    public void onCreate(Bundle savedInstanceState)  {        super.onCreate(savedInstanceState);        setContentView( R.layout.activity_main );        XStream xstream = new XStream() ;        List
     
       root = getList() ;        //将ListBean中的集合设置空元素，即不显示集合元素标签        xstream.addImplicitCollection( ListBean.class, "root");        xstream.autodetectAnnotations(true);                //设置别名        xstream.alias( "product", Product.class );        //将name设置为父类（Student）的元素的属性        xstream.useAttributeFor( Product.class, "name" );        //把list集合转换成Xml字符串        String xmlString =  xstream.toXML(  root ) ;        //把Xml字符串写入SD卡Xml文件        XstreamUtil xstreamUtil = new XstreamUtil() ;        xstreamUtil.writeToXml( this ,  xmlString ) ;        //把Xml字符串转化成list集合        List
      
        list = new ArrayList
       
        () ;        list =  (List
        
         ) xstream.fromXML( xmlString ) ;        System.out.println("sss"+  formatXml( xmlString ) );    }    /**     * 得到数据     * @return     */    private List
         
            getList(){        Person person1 = new Person() ;        person1.setpName( "saliy" ) ;        person1.setpAge( "36" );        Product product1 = new Product() ;        product1.setName( "jhon" ) ;        product1.setAge( "30" );        product1.setPerson( person1 );        Person person2 = new Person() ;        person2.setpName( "saliy02" ) ;        person2.setpAge( "3602" );        Product product2 = new Product() ;        product2.setName( "jhon02" ) ;        product2.setAge( "3002" );        product2.setPerson( person2 );        List
          
            root = new ArrayList
           
            () ; root.add( product1 ) ; root.add( product2 ) ; return root ; } /** * 格式化XML字符串 * @param xml * @return */ public static String formatXml(String xml){ try{ Transformer serializer= SAXTransformerFactory.newInstance().newTransformer(); serializer.setOutputProperty(OutputKeys.INDENT, "yes"); serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); Source xmlSource=new SAXSource(new InputSource(new ByteArrayInputStream(xml.getBytes()))); StreamResult res = new StreamResult(new ByteArrayOutputStream()); serializer.transform(xmlSource, res); return new String(((ByteArrayOutputStream)res.getOutputStream()).toByteArray()); }catch(Exception e){ return xml; } }}
           
          
         
        
       
      
     

package com.android10;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStreamWriter;import android.content.Context;import android.os.Environment;public class XstreamUtil {    XcallBack xcallBack ;    /**     * 把xml字符串写入ＳＤ卡文件     * @param context     * @param str　　xml字符串     */    public void writeToXml(Context context, String str ){          //获取文件路径        String SDPATH = Environment.getExternalStorageDirectory()  + "/myfile1.xml/" ;        //创建文件        File file = new File( SDPATH ) ;        if( !file.exists() ){            try {                file.createNewFile() ;            } catch (IOException e) {                e.printStackTrace();            }         }        //写入数据        try {            FileOutputStream out = new FileOutputStream( file ) ;            OutputStreamWriter outw = new OutputStreamWriter(out);              try {                  outw.write(str);                  outw.close();                  out.close();                  if( xcallBack != null ){                    xcallBack.success();                 }            } catch (IOException e) {                 if( xcallBack != null ){                    xcallBack.fail();                 }            }          } catch (FileNotFoundException e1) {            e1.printStackTrace();            if( xcallBack != null ){                xcallBack.fail();             }        }    }     //设置监听器    void setXStreamLister( XcallBack xcallBack ){        this.xcallBack = xcallBack ;    }}interface XcallBack{    /**     * 写入成功     */    void success() ;      /**     * 写入失败     */    void fail() ;     }