java.lang.NoClassDefFoundError：org / apache / poi / ss / usermodel / Workbook
我使用maven来pipe理我的web项目依赖项。 我将apache poi依赖添加到我的pom文件中。 它在编译时不显示错误。 但是当它运行时，它会在我的MainApplication（）类中抛出RuntimeException。 而它给出了java.lang.NoClassDefFoundError：org / apache / poi / ss / usermodel / Workbook
我有一个MainApplication类。
public class MainApplication extends Application { private Set<Class<?>> classes = new HashSet<Class<?>>(); HashSet<Object> singletons = new HashSet<Object>(); public MainApplication() { try { ClassPathXmlApplicationContext springContext = new ClassPathXmlApplicationContext("applicationContext.xml"); singletons.add(springContext.getBean("transformService", DataTransformService.class)); } public Set<Class<?>> getClasses() { return classes; } protected ApplicationContext springContext; public Set<Object> getSingletons() { return singletons; } }
以下是我添加的内容
<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.8-beta3</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.mail</groupId> <artifactId>mail</artifactId> <version>1.4</version> <scope>provided</scope> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.2</version> <scope>provided</scope> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.14</version> <scope>provided</scope> </dependency> ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/reportv2]] StandardWrapper.Throwable: java.lang.RuntimeException: Failed to construct public com.osg.application.MainApplication() at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:144) [:] at org.jboss.resteasy.spi.ResteasyDeployment.createApplication(ResteasyDeployment.java:243) [:] at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:191) [:] at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67) [:] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36) [:] at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1208) [:6.0.0.Final] at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:955) [:6.0.0.Final] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188) [:6.0.0.Final] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.Final] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.0.0.Final] at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final] at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.0.0.Final] at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.0.0.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.Final] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.Final] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.Final] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.Final] at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.0.0.Final] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.0.0.Final] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.0.0.Final] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.0.0.Final] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.Final] at java.lang.Thread.run(Thread.java:695) [:1.6.0_65] Caused by: java.lang.NoClassDefFoundError: org/apache/poi/ss/usermodel/Workbook at java.lang.Class.getDeclaredConstructors0(Native Method) [:1.6.0_65] at java.lang.Class.privateGetDeclaredConstructors(Class.java:2446) [:1.6.0_65] at java.lang.Class.getDeclaredConstructors(Class.java:1872) [:1.6.0_65] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:227) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:930) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:903) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) [:3.0.5.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580) [:3.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) [:3.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) [:3.0.5.RELEASE] at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) [:3.0.5.RELEASE] at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) [:3.0.5.RELEASE] at com.osg.application.MainApplication.<init>(MainApplication.java:19) [:] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [:1.6.0_65] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) [:1.6.0_65] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [:1.6.0_65] at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [:1.6.0_65] at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:132) [:] ... 23 more
Apache POI提供了一个组件页面 ，其中详细介绍了项目的所有不同部分，您需要什么样的jar以及您需要的Maven工件。 如果你看那里你会看到以下内容：
|Component | Application type | Maven artifactId | Notes |Common SS | Excel XLS and XLSX | poi-ooxml | WorkbookFactory and friends all require poi-ooxml, not just core poi |
正如明确指出的那样，如果你想使用所有常见的org.apache.poi.ss类，你需要依赖poi-ooxml ，而不仅仅是poi
其次，编译时间！=运行时间。 只是因为一个jar被maven吸收并可用于编译，并不意味着它会在你的代码运行时在那里。 你还需要确保你用代码打包你的依赖，或者确保它们在运行时在类path上。
你似乎（从堆栈跟踪）编写一个Web应用程序，所以你需要确保所有的依赖关系被放入/WEB-INF/lib/的战争，所以他们在运行时在那里。
最后，POI 3.8 beta 3是一个非常奇怪的版本使用。 你应该去最新的稳定（现在3.9），或最新的testing版（不是3.10testing版2）。 有关当前版本的详细信息，请参阅POI主页 。