Blank PDF even the simplest jrxml

[mythox]

 Hi, i have a EJB site with glassfish 3.1 + JSF for jasperreport 4.0.1.  the site has no problem on streaming pdf, but it products blank PDF when printing PDF with runReportToPdfStream, below is the code snippet:

---

EJB 

 

public class BookEJB {

public void printReport() throws ClassNotFoundException, IOException, JRException {

Map parameterMap = new HashMap();

FacesContext ctx = FacesContext.getCurrentInstance();

HttpServletResponse response = (HttpServletResponse) ctx.getExternalContext().getResponse();

InputStream reportStream = ctx.getExternalContext().getResourceAsStream("/reports/test.jasper");

  ServletOutputStream servletOutputStream = response.getOutputStream();

servletOutputStream.flush();

response.setContentType("application/pdf");

JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap);

servletOutputStream.flush();

servletOutputStream.close();

ctx.responseComplete();

}}

 

 

test.jrxml - a simple report without SQL connection

 

 

<?xml version="1.0" encoding="UTF-8"?>

<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="test" pageWidth="800" pageHeight="1200" columnWidth="555" leftMargin="25" rightMargin="25" topMargin="30" bottomMargin="30">

<property name="ireport.zoom" value="1.0"/>

<property name="ireport.x" value="0"/>

<property name="ireport.y" value="0"/>

<queryString>

<![CDATA[]]>

</queryString>

<pageHeader>

<band height="100">

<staticText>

<reportElement x="0" y="0" width="285" height="36"/>

<textElement>

<font size="24" isBold="true"/>

</textElement>

<text><![CDATA[Report of Testing]]></text>

</staticText>

</band>

</pageHeader>

<detail>

<band height="200">

<staticText>

<reportElement x="0" y="0" width="374" height="48"/>

<textElement>

<font size="18"/>

</textElement>

<text><![CDATA[if you don't see this, it didn't work blah blah blah.... ]]></text>

</staticText>

</band>

</detail>

<pageFooter>

<band height="100"/>

</pageFooter>

</jasperReport>

---

 

no error log in glassfish when generating this report on JSF, but only blank PDF has been shown.  Please help, let me know if you need further info for the analysis.

 

 

Steven

 

 

 

Post Edited by mythox at 03/10/2011 08:31

[szaharia]

Hi,

Try to use

JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap, new JREmptyDataSource());

Hope this helps,

sanda

[mythox]

Hi Sanda, 

Thanks!!  it works perfectly~  problem solved, but wonder what is the reason.  Thanks again

Steven

Post Edited by mythox at 03/10/2011 11:53

[szaharia]

Hi again,

By default, when no datasource info is present in a report, JR generates no pages. Another option (which can be set in the report's whenNoDataType attribute) would be to print all report sections, excepting the <detail>.
This report contains a detail section, but only with some static data. To ensure this section will be printed too, the simplest way is to provide an empty data source, containing a single empty record.

Regards,
sanda

Post Edited by shertage at 03/10/2011 12:07