以HTML格式导出JasperReports

对于HTML和其他格式：

import net.sf.jasperreports.engine.JRDataSource;import net.sf.jasperreports.engine.JRException;import net.sf.jasperreports.engine.JasperFillManager;import net.sf.jasperreports.engine.JasperPrint;import net.sf.jasperreports.engine.export.HtmlExporter;import net.sf.jasperreports.engine.export.JRCsvExporter;import net.sf.jasperreports.engine.export.JRPdfExporter;import net.sf.jasperreports.engine.export.JRXmlExporter;import net.sf.jasperreports.export.Exporter;import net.sf.jasperreports.export.SimpleExporterInput;import net.sf.jasperreports.export.SimpleHtmlExporterOutput;import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;public byte[] export(final JasperPrint print) throws JRException {    final Exporter exporter;    final ByteArrayOutputStream out = new ByteArrayOutputStream();    boolean html = false;    switch (getReportFormat()) {        case HTML: exporter = new HtmlExporter(); exporter.setExporterOutput(new SimpleHtmlExporterOutput(out)); html = true; break;        case CSV: exporter = new JRCsvExporter(); break;        case XML: exporter = new JRXmlExporter(); break;        case XLSX: exporter = new JRXlsxExporter(); break;        case PDF: exporter = new JRPdfExporter(); break;        default: throw new JRException("Unknown report format: " + getReportFormat().toString());    }    if (!html) {        exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(out));    }    exporter.setExporterInput(new SimpleExporterInput(print));    exporter.exportReport();    return out.toByteArray();}

使用以下命令调用它：

JasperPrint print = JasperFillManager.fillReport(report, parameters, dataSource);byte report[] = export(print);