Guardar XML

[palmach]

Se puede guardar un archivo xml con el nombre de la informacion de un tag nose si me explico. no quiero que guarde yo especificando el nombre asi como lo tengo aqui abajo archivo.xml

Código:

package com.facturas.servlets;

import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.XMLSerializer;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.w3c.dom.Element;

import com.facturas.converters.ConverterEFACE;

/**
 * Servlet implementation class FacturasG4S
 */
public class FacturasG4S extends HttpServlet {
	private static final long serialVersionUID = 1L;

    /**
     * Default constructor. 
     */
    public FacturasG4S() {
        // TODO Auto-generated constructor stub

    }

    private WebApplicationContext getContext()
    {
		ServletContext servletContext = this.getServletContext();
		WebApplicationContext wac = WebApplicationContextUtils.
				getRequiredWebApplicationContext(servletContext);

		return wac;
    }

	  private String printDOM(Element xmlDoc) throws Exception
	  {
		  String retorno = "";

	    OutputFormat outputFormat = new OutputFormat("XML","UTF-8",true);
	    ByteArrayOutputStream baos = new ByteArrayOutputStream();

	    XMLSerializer xmlSerializer = new XMLSerializer(baos, outputFormat);

	    xmlSerializer.asDOMSerializer();

	    xmlSerializer.serialize(xmlDoc);

		System.out.println("Factura8: " + baos);
		File file = new File("c:\\archivo.xml");
	    if(baos != null)
	    {
	    	retorno = baos.toString();
			FileWriter fw = new FileWriter(file.getAbsoluteFile());
			BufferedWriter bw = new BufferedWriter(fw);
			bw.write(retorno);
			bw.close();
	    }
	    
	    return retorno;
	    
	  }
    
    
	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		try
		{
			
			ConverterEFACE converter = (ConverterEFACE)getContext().getBean("converterEFACE");
			

			String facturaId = request.getParameter("id");
		
			if((facturaId != null) && (!facturaId.equals("")))
			{
				Element elemento = converter.generateElement(Long.parseLong(facturaId));
				response.getOutputStream().println(printDOM(elemento));
				response.getOutputStream().close();
			   
			}
			
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		
		
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

}