Android中xml生成

import java.util.Properties;  
  
import javax.xml.parsers.DocumentBuilder;  
import javax.xml.parsers.DocumentBuilderFactory;  
import javax.xml.parsers.ParserConfigurationException;  
import javax.xml.transform.OutputKeys;  
import javax.xml.transform.Transformer;  
import javax.xml.transform.TransformerConfigurationException;  
import javax.xml.transform.TransformerException;  
import javax.xml.transform.TransformerFactory;  
import javax.xml.transform.dom.DOMSource;  
import javax.xml.transform.stream.StreamResult;  
  
import org.w3c.dom.Document;  
  
  
public class XMLhelper  
{  
    private static String serializeDocument(Document doc)  
    {  
        String xml = null;  
        try  
        {  
            TransformerFactory factory = TransformerFactory.newInstance();  
            Transformer transformer = factory.newTransformer();  
            Properties outFormat = new Properties();  
            outFormat.setProperty( OutputKeys.INDENT, "yes" );  
            outFormat.setProperty( OutputKeys.METHOD, "xml" );  
            outFormat.setProperty( OutputKeys.OMIT_XML_DECLARATION, "no" );  
            outFormat.setProperty( OutputKeys.VERSION, "1.0" );  
            outFormat.setProperty( OutputKeys.ENCODING, "UTF-8" );  
            transformer.setOutputProperties( outFormat );  
  
            DOMSource domSource = new DOMSource( doc.getDocumentElement() );  
            OutputStream output = new StringOutputStream();  
            StreamResult result = new StreamResult( output );  
            transformer.transform( domSource, result );  
  
            xml = output.toString();  
            android.util.Log.i( "XMLHELPER", xml );  
        }  
        catch (TransformerConfigurationException e)  
        {  
            android.util.Log.d( "XMLHELPER", "Exception: " + e );  
            e.printStackTrace();  
        }  
        catch (TransformerException e)  
        {  
            android.util.Log.d( "XMLHELPER", "Exception: " + e );  
            e.printStackTrace();  
        }  
  
        return xml;  
    }  
}