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MyEclipse 6.5 异常 java.lang.UnsupportedClassVersionError: Bad version number in .class file

2010-03-23 19:18 639 查看
2010-03-23  19:18:59

今天调试一个struts1.x的项目，遇到了java.lang.UnsupportedClassVersionError: Bad version number in .class file 异常，郁闷了一天，终于解决.....

 

异常提示：

 

2010-3-23 18:37:48 org.apache.commons.digester.Digester startElement
严重: Begin event threw exception
java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:1773)
 at org.apache.commons.beanutils.PropertyUtilsBean.setSimpleProperty(PropertyUtilsBean.java:1759)
 at org.apache.commons.beanutils.PropertyUtilsBean.setNestedProperty(PropertyUtilsBean.java:1648)
 at org.apache.commons.beanutils.PropertyUtilsBean.setProperty(PropertyUtilsBean.java:1677)
 at org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1022)
 at org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:811)
 at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:298)
 at org.apache.commons.digester.SetPropertiesRule.begin(SetPropertiesRule.java:217)
 at org.apache.commons.digester.Rule.begin(Rule.java:152)
 at org.apache.commons.digester.Digester.startElement(Digester.java:1286)
 at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
 at org.apache.commons.digester.Digester.parse(Digester.java:1572)
 at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:738)
 at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)
 at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1172)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:992)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4371)
 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:525)
 at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
 at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1217)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
 at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.bjsxt.struts.CalActionForm)
 at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1851)
 at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:890)
 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1354)
 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
 at org.apache.struts.config.FormBeanConfig.formBeanClass(FormBeanConfig.java:358)
 at org.apache.struts.config.FormBeanConfig.setType(FormBeanConfig.java:152)
 ... 47 more
2010-3-23 18:37:48 org.apache.struts.action.ActionServlet handleConfigException
严重: Parsing error processing resource path /WEB-INF/struts-config.xml
java.lang.reflect.InvocationTargetException
 at org.apache.commons.digester.Digester.createSAXException(Digester.java:2792)
 at org.apache.commons.digester.Digester.createSAXException(Digester.java:2818)
 at org.apache.commons.digester.Digester.startElement(Digester.java:1289)
 at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
 at org.apache.commons.digester.Digester.parse(Digester.java:1572)
 at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:738)
 at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)
 at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1172)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:992)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4371)
 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:525)
 at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
 at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1217)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
 at java.lang.Thread.run(Unknown Source)
2010-3-23 18:37:48 org.apache.catalina.core.ApplicationContext log
信息: Marking servlet action as unavailable
2010-3-23 18:37:48 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /struts_cal threw load() exception
javax.servlet.UnavailableException: Parsing error processing resource path /WEB-INF/struts-config.xml
 at org.apache.struts.action.ActionServlet.handleConfigException(ActionServlet.java:769)
 at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:745)
 at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)
 at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1172)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:992)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4371)
 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:525)
 at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
 at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1217)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
 at java.lang.Thread.run(Unknown Source)
2010-3-23 18:41:59 org.apache.catalina.core.StandardWrapperValve invoke
信息: Servlet action is currently unavailable
 

 

网上把这个问题归因于在MyEclipse中对项目jdk版本配置的冲突，也有说可通过调节tomcat运行版本来解决.

具体解决方法：

通过下面步骤把jdk版本统一起来









 

 





 
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标签：  myeclipse file parsing servlet processing 2010
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