dom4j使用selectSingleNode方法报错
我有一段代码，美国服务器，使用dom4j 正则表达式解析gml ，香港空间， 代码如下：
List<Element> featureMembers= root.selectNodes(“featureMember”);
发生以下异常：
java.lang.NoClassDefFoundError: org/jaxen/JaxenExceptionat org.dom4j.DocumentFactory.createXPath(DocumentFactory.java:230)at org.dom4j.tree.AbstractNode.createXPath(AbstractNode.java:207)at org.dom4j.tree.AbstractNode.selectNodes(AbstractNode.java:164)at com.geoway.spatial.util.LocationUtils.parseTDTResponseDocument(LocationUtils.java:56)at com.geoway.spatial.util.LocationUtils.queryTDTWFS(LocationUtils.java:33)at com.geoway.spatial.service.impl.TDTLocationServiceImpl.getLocationByName(TDTLocationServiceImpl.java:28)at com.geoway.spatial.service.impl.LocationAdapter.getLocationByName(LocationAdapter.java:31)at com.geoway.spatial.service.impl.LocationAdapter.test(LocationAdapter.java:48)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:297)at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:250)at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:144)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:350)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1329)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:471)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)at java.security.AccessController.doPrivileged(Native Method)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:217)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)at org.apache.catalina.core.StandardService.start(StandardService.java:516)at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)at org.apache.catalina.startup.Catalina.start(Catalina.java:583)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)Caused by: java.lang.ClassNotFoundException: org.jaxen.JaxenExceptionat org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)… 56 more
根据异常，香港服务器，发现少了一个类：org.jaxen.JaxenException 这个类存在jaxen.jar包中，原因可想而知了！在路径下加入这个jar包即可。
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