如何将样式表应用于castor Marshaller输出流

Question

将xslt应用于castor marshaller输出流的最佳方法是什么？

我想在我的servlet中将xhtml发送到客户端。我也尝试在一个字符串中缓冲数据，并将一个管道放在一起到xalan，但这看起来很昂贵，并且应该有一种方法来处理流一次。

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String strGpxid = request.getParameter("id");
    long gpxid = Long.parseLong(strGpxid);
     // Set content type for HTML.
    response.setContentType("text/xml; charset=UTF-8");    
    // Output goes to the response PrintWriter.
    java.io.PrintWriter out = response.getWriter();
    try
    {   // private method call to fetch from gpxdb
        Gpx gpx = this.getGpx(gpxid);
        StringWriter strWriter = new StringWriter(); 
        Marshaller marshaller = new Marshaller(strWriter);
        marshaller.setEncoding("ISO-8859-1");
        marshaller
        .setSchemaLocation("http://www.topografix.com/GPX/1/1/gpx.xsd");

// marshaller.addProcessingInstruction（“xml-stylesheet”，“href ='gpsxmlQuickView.xsl'”）;

        PrintWriter pw = response.getWriter();
        Marshaller.marshal(gpx, pw);

    }
    catch (Exception e)
    {
      out.write(e.getMessage());
      e.printStackTrace(out);    
    }
    out.close();
  }  

TIA