PDF generation using iText in Struts-2 : result type stream not working

Question

My requirement is to generate PDF file using iText, I use below code to create a sample PDF

Document document = new Document();
ByteArrayOutputStream baos =          


        

Answer 1

Found solution to this.

The method in the action which performs this PDF export can be void. The result type configuration is not needed while we are writing directly to response's outputstream

for example, have your action class this way

Class ExportReportAction extends ActionSupport {
  public void exportToPdf() { // no return type
    try {
        Document document = new Document();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PdfWriter.getInstance(document, baos);
        document.open();
        document.add(new Paragraph("success PDF FROM STRUTS"));
        document.close(); 
        ServletOutputStream outputStream = response.getOutputStream() ; 
        baos.writeTo(outputStream); 
        response.setHeader("Content-Disposition", "attachment; filename=\"stuReport.pdf\""); 
        response.setContentType("application/pdf"); 
        outputStream.flush(); 
        outputStream.close(); 
    }catch (Exception e) {
        //catch
    }

  } 
}

and have your struts-configuration this way

this works cool !!!

Thanks for all who attempted to answer this question