weblogic版本：WebLogic Server 9.2

author：ifeelcold1999#gmail.com

主要参考资料：

Background:应用原来是部署在websphere上的，并且有专门的运维人员负责，新项目组要求部署到weblogic，并且没有运维，只能我自己搞了

1^st

将应用打成war包，上传至服务器，在weblogic的console里install完成，选择start后，console提示

异常堆栈就不贴了，有需要可以联系我

主要的是这句

Caused by: java.lang.NoSuchMethodError: getTokenStartColumn         at org.codehaus.groovy.antlr.parser.GroovyLexer.makeToken(GroovyLexer.java:81)

这个makeToken方法会调用tok.setColumn(inputState.getTokenStartColumn());

inputState.getTokenStartColumn()是应用中antlr-2.7.6.jar的内容，考虑是weblogic自己的antlr相关类和antlr-2.7.6.jar中的内容不一样，反编译inputState对应的类antlr.LexerSharedInputState和weblogic.jar中同名的类，发现antlr-2.7.6.jar中的类的部分方法在weblogic.jar中的类里确实没有。

2^nd

看到这里，首先想到的是在配置文件中设置prefer-web-inf-classes，使应用的jar加载早于weblogic自己的jar加载

在weblogic.xml中添加如下内容

    		
     
      true
     
    

Update然后启动应用，提示错误

这个的错误堆栈贴一下

$$2012-06-27 16:05:36|[ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'|org.springframework.web.context.ContextLoader|ERROR|org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:215)|Context initialization failed##org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from URL [zip:/app/wls92/bea/user_projects/domains/CxdxDomain/servers/Server7030/tmp/_WL_user/ebw/byb2o9/war/WEB-INF/lib/_wl_cls_gen.jar!/beans/ajax-views.xml]; nested exception is java.lang.LinkageError: Class javax/xml/namespace/QName violates loader constraints	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:420)	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124)	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:92)	at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)	at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)	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 weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:376)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)	at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:82)	at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1616)	at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2761)	at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:889)	at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:333)	at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)	at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)	at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)	at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)	at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)	at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)	at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:26)	at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)	at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)	at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:154)	at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:80)	at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:566)	at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:136)	at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:104)	at weblogic.deploy.internal.targetserver.operations.StartOperation.doCommit(StartOperation.java:139)	at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:320)	at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:815)	at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1222)	at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:433)	at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:161)	at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)	at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)	at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:67)	at weblogic.work.ServerWorkManagerImpl$WorkAdapterImpl.run(ServerWorkManagerImpl.java:518)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)Caused by: java.lang.LinkageError: Class javax/xml/namespace/QName violates loader constraints	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)	at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:355)	at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:294)	at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:262)	at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:54)	at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:40)	at org.apache.xerces.impl.xs.XMLSchemaValidator.reset(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.configurePipeline(Unknown Source)	at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.configurePipeline(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)	at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)	at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)	at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124)	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:92)	at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)	at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)

看参考资料的分析，因为prefer-web-inf-classes的配置，应用中所有jar的加载时间要早于weblogic中jar的加载时间，导致weblogic中部分类的依赖本来指向容器的结果指向了应用中的类，然后由于兼容问题而报错了，这个原因看起来比较高端，详细原因请看参考资料

3^rd

最终解决方法是去掉prefer-web-inf-classes ，改为在weblogic的启动脚本中的classpath中添加导致第一个异常的antlr-2.7.6.jar，即只提前加载应用中这一个jar，再次启动，应用可以起来了

CLASSPATH="/home/wls92/foo/bar/antlr-2.7.6.jar:/home/wls92/foo/bar/xxx.jar: /home/wls92/foo/bar/yyy.jar:

最后，按照惯例，福利一枚奉上