ireport合并两个报表模板

JasperPrint jp1 = JasperFillManager.fillReport(url.openStream(), parameters,
                    new JRBeanCollectionDataSource(inspBean));
JasperPrint jp2 = JasperFillManager.fillReport(url.openStream(), parameters,
                    new JRBeanCollectionDataSource(inspBean));
List pages = jp2 .getPages();
            for (int j = 0; j < pages.size(); j++) {
            JRPrintPage object = (JRPrintPage)pages.get(j);
            jp1.addPage(object);

    }
    JasperViewer.viewReport(jp1,false);