Question

我是新来的办公室，我正在实习。他们使用基于java web的框架，如spring等。当我试图建立我的工作空间时，我不得不从CVS存储库中检查出他们所有的项目。现在，当我尝试执行它时抛出一些例外：

下面列出了例外情况：

Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JRException
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2585)
    at java.lang.Class.getDeclaredConstructors(Class.java:1906)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:227)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:930)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:903)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
    at com.scraper.AgentLauncher.getDynamicContext(AgentLauncher.java:277)
    at com.scraper.AgentLauncher.main(AgentLauncher.java:652)
    at com.highradius.util.AgentLauncherTest.main(AgentLauncherTest.java:22)
Caused by: java.lang.ClassNotFoundException: neet.sf.jasperreports.engine.JRException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

以下屏幕截图中也提供了例外情况：

https://i.stack.imgur.com/TiD3s.png

Answer 1

它清楚地表明

Caused by: java.lang.ClassNotFoundException: neet.sf.jasperreports.engine.JRException

在类路径中检查一下这个类。 Jar可能会因此失踪。

在执行我的项目时获取java.lang.NoClassDefFoundError

1 个答案: