要在一份报告/PDF 中添加多个 JRXML,您可以按照以下方式操作:
考虑以下方法来生成包含 2 个 JRXML 的 PDF 报告,这些 JRXML 已添加到“jrxmlFileNames”列表中
public static void reportGenerator(String reportType, List<String> jrxmlFileNames,
Datasource dataSource , String SwapFile)
{
JRConcurrentSwapFile swapFile = new JRConcurrentSwapFile(SwapFile, 102400 , 10);
JRAbstractLRUVirtualizer virtualizer = new JRSwapFileVirtualizer(1000, swapFile, true);
Map<String, JRAbstractLRUVirtualizer> parameters = new HashMap<String, JRAbstractLRUVirtualizer>();
parameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
try
{
if (reportType.equalsIgnoreCase("PDF"))
{
try
{
JasperReport jreport1 = JasperCompileManager.compileReport(ReportGenerator.class.getResourceAsStream(jrxmlFileNames.get(0)));
JasperPrint jprint1 = JasperFillManager.fillReport(jreport1, parameters, new JRBeanCollectionDataSource(dataSource.getDataSourceFor1()));
JasperReport jreport2 = JasperCompileManager.compileReport(ReportGenerator.class.getResourceAsStream(jrxmlFileNames.get(1)));
JasperPrint jprint2 = JasperFillManager.fillReport(jreport2, parameters, new JRBeanCollectionDataSource(dataSource.getDataSourceFor2()));
List<JasperPrint> jprintlist = new ArrayList<JasperPrint>();
jprintlist.add(jprint1);
jprintlist.add(jprint2);
String fileName="TESTReport.pdf";
JRExporter exporter = new JRPdfExporter();
exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, jprintlist);
exporter.setParameter(JRPdfExporterParameter.OUTPUT_FILE_NAME, fileName);
exporter.exportReport();
}
catch(Exception e)
{
e.printStackTrace();
}
}
swapFile.dispose();
}
catch(Exception e)
{
e.printStackTrace();
}
}
在上面的代码中,以下部分将帮助您添加多个 JRXML
List<JasperPrint> jprintlist = new ArrayList<JasperPrint>();
jprintlist.add(jprint1);
jprintlist.add(jprint2);
JRExporter exporter = new JRPdfExporter();
exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, jprintlist);
希望能帮助到你!