为什么我会得到异常 java.lang.NoClassDefFoundError org/codehaus/groovy/? [英] Why do I get Exception java.lang.NoClassDefFoundError org/codehaus/groovy/?

问题描述

我刚刚尝试了 Jasper Report，我正在学习 本网站

I've just try Jasper Report, I'm following tutorial from this site

我还下载了示例源代码，然后运行它并没有出现错误.但是当我使用 iReport 创建自己的报告时，编译它，并将 .jasper 文件添加到我的项目中.运行程序时出现exception:

Also I downloaded the sample source then run it and got no error. But when I create my own report using iReport, compile it, and add the .jasper file to my project. There is exception when I run my program:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/codehaus/groovy/runtime/callsite/CallSiteArray
    at report2_1343895135169_749208.$createCallSiteArray(calculator_report2_1343895135169_749208)
    at report2_1343895135169_749208.$getCallSiteArray(calculator_report2_1343895135169_749208)
    at report2_1343895135169_749208.<init>(calculator_report2_1343895135169_749208)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at java.lang.Class.newInstance0(Class.java:355)
    at java.lang.Class.newInstance(Class.java:308)
    at net.sf.jasperreports.engine.design.JRAbstractJavaCompiler.loadEvaluator(JRAbstractJavaCompiler.java:112)
    at net.sf.jasperreports.engine.design.JRAbstractCompiler.loadEvaluator(JRAbstractCompiler.java:333)
    at net.sf.jasperreports.engine.JasperCompileManager.getEvaluator(JasperCompileManager.java:265)
    at net.sf.jasperreports.engine.fill.JRFillDataset.createCalculator(JRFillDataset.java:457)
    at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:379)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:88)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:103)
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:61)
    at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:153)
    at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:82)
    at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:653)
    at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:634)
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:956)
    at View.MainGUI.btnExportActionPerformed(MainGUI.java:871)
    at View.MainGUI.access$800(MainGUI.java:50)
    at View.MainGUI$10.actionPerformed(MainGUI.java:541)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    at java.awt.Component.processMouseEvent(Component.java:6267)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6032)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4630)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.ClassNotFoundException: org.codehaus.groovy.runtime.callsite.CallSiteArray
    at java.lang.ClassLoader.findClass(ClassLoader.java:359)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
    ... 50 more

这是我用于显示报告的按钮操作(这只是示例，报告仅包含一个带有参数的文本:outputText):

Here my button action for displaying the report (this is just sample, the report just contain one text with parameter: outputText):

Map params = new HashMap();
params.put("outputText", "Hello world");
try {
        JasperPrint printer = JasperFillManager.fillReport(getClass().getResourceAsStream("report2.jasper"), params, new JREmptyDataSource());
        JasperViewer jv = new JasperViewer(printer);
        jv.show();
    } catch (JRException ex) {
        ex.printStackTrace();
    }

如果是 dependency 问题，我已经将所有需要的 jar 导入到我的项目中，当我使用该教程中的 .jasper 文件时，没有问题，是吗是因为 iReport 的不同版本还是其他原因?

If it's dependency problem, I've imported all the required jar to my project, when I use .jasper file from that tutorial there is no problem, is it because of the different version of iReport or else?

推荐答案

您需要使用 CallSiteArray 类的额外 Jar 包.

You need additional Jar package using CallSiteArray class.

http://groovy.codehaus.org/Download

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