如何在Jasper中使用子报表？

Question

我在这里做错了什么？

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    subreport_dir = "...\\Report\\subReport.jasper";
    try {            
        compileView("...\\Report\\myReport.jrxml");            
    } catch (JRException ex) {
        JOptionPane.showMessageDialog(this, "No Row");
        System.out.println(ex.toString());
    }
}  

当我调用函数

private static void compileView(String path) throws JRException {
    Map<String, Object> param = new HashMap<String, Object>();
    param.put("month", myMonth);
    param.put("year", myYear);
    param.put("SUBREPORT_DIR", subreport_dir);
    param.putAll(param);
    JasperReport jRp = JasperCompileManager.compileReport(path);
    JasperPrint jPrint = JasperFillManager.fillReport(jRp, param, getConnection());
    JasperViewer.viewReport(jPrint, false);
    JasperViewer.setDefaultLookAndFeelDecorated(true);

}

我得到这个例外：

线程“ AWT-EventQueue-0”中的异常java.lang.NoClassDefFoundError：net / sf / jasperreports / compilers / GroovyEvaluator

我该怎么办？

Answer 1

在报告中的<jasperReport>标记上更改语言标记

<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="subreport" language="groovy" pageWidth="555" pageHeight="842" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="6afeba62-b470-4dfb-a8fb-42e2226b906d">

language =“ groovy”

至

language =“ java”