Generate pdf in java

Question

Good afternoon, I would like a help regarding generating a pdf report in java. Well I am using the first faces to export this report. I created the first line with the fields as you can see in the image below, but when automatically exporting generates also this second line, taking it from my datatable, how do I leave only the line I created? because I don’t want the one that comes from datatable to appear. Thank you

this is my bean I’m making to generate my pdf.

 public void preProcessPDF(Object document) throws DocumentException, BadElementException, IOException {
Document pdf = (Document) document;
pdf.setPageSize(PageSize.A4.rotate());



    pdf.open();

       PdfPTable table = new PdfPTable(8);
        table.addCell(new PdfPCell(new Phrase("Rodovia")));
        table.addCell(new PdfPCell(new Phrase("Callbox")));
        table.addCell(new PdfPCell(new Phrase("Tipo")));
        table.addCell(new PdfPCell(new Phrase("Versão Firmware")));
        table.addCell(new PdfPCell(new Phrase("Endereço IP")));
        table.addCell(new PdfPCell(new Phrase("Ramal/Numero")));
        table.addCell(new PdfPCell(new Phrase("Ativo")));
        table.addCell(new PdfPCell(new Phrase("Status")));




    Font catFont = new Font(Font.TIMES_ROMAN, 18, Font.BOLD);

    Paragraph p = new Paragraph("Relatório", catFont);
    p.setAlignment(Element.ALIGN_CENTER);

    p.setSpacingAfter(20);

    pdf.add(p);
    pdf.add(table);


}

 <h:commandLink>
<i class="fa fa-file-pdf-o fa-fw"/> #{bundle['system.ui.label.export.pdf']}
<p:dataExporter type="pdf" 
encoding="iso-8859-1"
target="callbox_datatable"
preProcessor="#{callboxBean.preProcessPDF}"
/>
</h:commandLink>

Answer 1

In the Primefaces documentation :

In case you need one or more Columns to be Ignored set Exportable option of column to false.
<p:column Exportable="false">
[...]
<p:column>

So in the columns just add exportable="false"that the column will not be exported.