在web应用程序中将Jasper报告导出为PDF输出流

import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.export.SimpleExporterInput;
import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;

// 导出Jasper报告为PDF输出流
public class JasperReportExporter {
    public static void exportToPDF(JasperPrint jasperPrint, OutputStream outputStream) throws JRException {
        JRPdfExporter exporter = new JRPdfExporter();
        exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
        exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outputStream));
        exporter.exportReport();
    }
}