java - How to load subreport resources with Jasper?

Question

With Jasper, I use resources to load the report. So, to load the main report, I use something like :

InputStream is = getClass().getResourceAsStream("/resources/report1.jrxml");
design = JRXmlLoader.load(is);

But, if there is a subreport in report1.jrxml, how to say it is in /resources/sub.jrxml ?

Answer 1

I did it this way:

jasperDesign = JRXmlLoader.load(rootpath + "/WEB-INF/templates/Report.jrxml");
jasperDesignSR = JRXmlLoader.load(rootpath + "/WEB-INF/templates/SubReport.jrxml");


JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperReport jasperReportSR = JasperCompileManager.compileReport(jasperDesignSR);

parameters.put("SubReportParam", jasperReportSR);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, dataSource);

"SubReportParam" would be a parameter of the type "JasperReport" as a SubreportExpression within your Report.

In the .jrxml:

<parameter name="SubReportParam" class="net.sf.jasperreports.engine.JasperReport" isForPrompting="false"/>

I don't know if You use IReport for your Design of Reports. With a right click on your subreport you should find the SubreportExpression. parameters is a map which I pass to "fillReport"

Good luck.