Problem with nested report

[nusa]

Hi everyone,

 

I have a nested subreport that I can't display it.

I have a master report (MR), a subreport (SR), and a nested subreport inside that SR (NSR).

I tried the following code :

Code:

-- in the MR
<parameter name="SR" isForPrompting="false" class="net.sf.jasperreports.engine.JasperReport"/>
...
<subreport  isUsingCache="true">
   <reportElement .../>
   <subreportParameter  name="XML_DATA_DOCUMENT">
      <subreportParameterExpression><![CDATA[$P{XML_DATA_DOCUMENT}]]></subreportParameterExpression>
   </subreportParameter>
   <!-- Embedded load the NSR ??? -->
   <subreportParameter  name="NSR">
      <subreportParameterExpression>
         net.sf.jasperreports.engine.util.JRLoader.loadObject(getClass().getClassLoader().getResourceAsStream("WEB-INF/jasper/NSR.jasper"«»))
      </subreportParameterExpression>
   </subreportParameter>
   <subreportExpression  class="net.sf.jasperreports.engine.JasperReport"><![CDATA[$P{SR}]]>
   </subreportExpression>
</subreport>
...

-- in the SR
<parameter name="NSR" isForPrompting="false" class="net.sf.jasperreports.engine.JasperReport"/>
...
<subreport  isUsingCache="true">
   <reportElement .../>
   <subreportParameter  name="XML_DATA_DOCUMENT">
      <subreportParameterExpression><![CDATA[$P{XML_DATA_DOCUMENT}]]></subreportParameterExpression>
   </subreportParameter>
   <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JRXmlDataSource)$P{REPORT_DATA_SOURCE}).dataSource("/root_element/..."«»)]]>
   </dataSourceExpression>
   <subreportExpression  class="net.sf.jasperreports.engine.JasperReport"><![CDATA[$P{NSR}]]>
   </subreportExpression>
</subreport>
...

-- the Java code
...
    Map param = new HashMap();
    param.put(JRXPathQueryExecuterFactory.PARAMETER_XML_DATA_DOCUMENT, doc);

    String subReport;

    subReport = request.getSession().getServletContext().getRealPath("WEB-INF/jasper/SR.jasper"«»);
    System.out.println("===> Load subreport " + subReport);
    JasperReport bankReport = (JasperReport)JRLoader.loadObject(subReport);
    param.put("SR", bankReport);

    System.out.println("===> Fill the report "«»);
    String reportFilename = request.getSession().getServletContext().getRealPath("WEB-INF/jasper/MR.jasper"«»);
    JasperPrint reportPrint = JasperFillManager.fillReport(reportFilename, param);

    System.out.println("===> Export to PDF"«»);
    String finalfilename = "test.pdf";
    JasperExportManager.exportReportToPdfFile(reportPrint ,finalfilename);
...

 

The above code does not display the SR nor the NSR.

Anybody knows what's wrong with the above code ( both jrxml and java )?

 

Thanks for any help/suggestion.

[nusa]

Could anyone help me or give me some pointers/advices ?

 

Thanks.

[nusa]

Anyone could help me out please ? I'm really stuck in here.

 

Thanks.