如何在 JasperReports 6.1 中導出為 PDF：替代使用 JRpdfExporter.setParameter 方法

Question

如何在 JasperReports 6.1 中導出為 PDF？

我將此代碼與JasperReports API 5.2 一起使用：

JasperPrint jasperPrint = JasperFillManager.fillReport(getServletContext().getRealPath(url), parametros, new JRBeanCollectionDataSource(listadoDatos));
JRExporter exporter = new JRPdfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
exporter.exportReport();

但下面的代碼不適用於JR API 6.1 ：

  JasperPrint jasperPrint;  
  if (conConexion) {
      jasperPrint = JasperFillManager.fillReport(getServletContext().getRealPath(url), parametros, conexion);
      conexion.close(); 
  } else {
      jasperPrint = JasperFillManager.fillReport(getServletContext().getRealPath(url), parametros, new JRBeanCollectionDataSource(listaDatos));
  }
  JRPdfExporter exporter = new JRPdfExporter();
  exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
  exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(nombreReporte+".pdf"));
  SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
  exporter.setConfiguration(configuration);
  exporter.exportReport();

我如何重寫這段代碼？

Answer 1

@LuisNeira 的回答

這是解決方案：

JRPdfExporter exporter = new JRPdfExporter();
exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outputStream));
SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
configuration.setPermissions(PdfWriter.AllowCopy | PdfWriter.AllowPrinting);
exporter.setConfiguration(configuration);
exporter.exportReport();