Jasper API只打印第一个报表其他报表打印为空

Question

    JasperPrint jasperPrint = null;
            // Fill report
            Iterator i1 = l1.iterator();
            Iterator i2 = l2.iterator();
            int i = 1;
            while (i1.hasNext() && i2.hasNext()) {
                parameters.put("SUBJECTOID", (String) i1.next());
                parameters.put("HISTORYRECORD", (String) i2.next());
                try (ProfilePoint fillReport = ProfilePoint
                        .profileAction("ProfAction_ReportHelper_fillJasperReport")) {
                    jasperReport = JasperCompileManager.compileReport(jrxmlPath);

                    jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, emptyDataSource);
                    System.out.println("fillReport**********" + i);

                }

                // Export to PDF
                try (ProfilePoint exportReport = ProfilePoint
                        .profileAction("ProfAction_ReportHelper_exportJasperReport")) {
                    JasperExportManager.exportReportToPdfFile(jasperPrint,
                            "C:\\JASPER\\JASPEROUTPUT\\Report" + i + ".pdf");
                    System.out.println("exportReportToPdfFile**********" + i);
                }
                i++;
                jasperPrint = null;
                jasperReport = null;

是否有任何缓存或某种设置在jasper或类似的东西？

Answer 1

谢谢@dada67的建议它起作用了

我为每个迭代传递了新的emptydatasource，它起作用了。

多谢..！！！