Java Development Tools

Hi,

I wanted to create an excel file using apache POI but I cant get this simple code to work.

I basically have this button in a page fragment

<af:commandButton text="Export" id="cb1"
	actionListener="#{pageFlowScope.hrBean.handleExport}"/>

And my code in managed bean that handles the export.

public void handleExport(ActionEvent actionEvent) {
	// Add event code here...

	ExternalContext ectx =
		FacesContext.getCurrentInstance().getExternalContext();
	HttpServletResponse response = (HttpServletResponse)ectx.getResponse();
	try {
		OutputStream out = response.getOutputStream();
		response.setContentType("application/vnd.ms-excel");
		response.setHeader("Content-disposition",
						   "attachment; filename=" + "sample.xls");
		HSSFWorkbook workbook = createExcelWorkbook();
		workbook.write(out);
		out.flush();
		out.close();
		FacesContext.getCurrentInstance().responseComplete();

	} catch (IOException ex) {
		ex.printStackTrace();
	}

}

public HSSFWorkbook createExcelWorkbook() {
	HSSFWorkbook empWorkBook = new HSSFWorkbook();
	Sheet empSheet = empWorkBook.createSheet("Employee List");

	org.apache.poi.ss.usermodel.Row header = empSheet.createRow((short)0);

	CreationHelper createHelper = empWorkBook.getCreationHelper();
	header.createCell(0).setCellValue(createHelper.createRichTextString("Employee ID"));
	header.createCell(1).setCellValue(createHelper.createRichTextString("First Name"));
	header.createCell(2).setCellValue(createHelper.createRichTextString("Last Name"));

	return empWorkBook;
}

What happens is that, when I click the button nothing happens but the page just refreshes.
Theres no pop-up on the browser that wants me to save or open the attached file.

Any idea please?

I have been following this blog http://technology.amis.nl/blog/1762/exporting-to-excel-from-any-adf-table
and checked that the code mathces mine.

JDEV 11G PS3