public  void service(HttpServletRequest request,
    HttpServletResponse response) throws IOException, ServletException 
{
		ServletContext context = this.getServletConfig().getServletContext();
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		try
		{
			File reportFile = new File(context.getRealPath("/reports/WebappReport.jasper"));
			if (!reportFile.exists())
				throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");
			JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
			Map parameters = new HashMap();
			parameters.put("ReportTitle", "Address Report");
			parameters.put("BaseDir", reportFile.getParentFile());
			JasperPrint jasperPrint = 
				JasperFillManager.fillReport(
					jasperReport, 
					parameters, 
					new WebappDataSource()
					);
			JRHtmlExporter exporter = new JRHtmlExporter();
			request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
			exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "image?image=");
			exporter.exportReport();
		}
		catch (JRException e)
		{
			out.println("< html >");
			out.println("< head >");
			out.println("< title >JasperReports - Web Application Sample< /title >");
			out.println("< link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\" >");
			out.println("< /head >");
			out.println("< body bgcolor=\"white\" >");
			out.println("< span class=\"bnew\" >JasperReports encountered this error :< /span >");
			out.println("< pre >");
			e.printStackTrace(out);
			out.println("< /pre >");
			out.println("< /body >");
			out.println("< /html >");
		}
}