问题描述
我正在将我的 Spring 项目从 4.3.23 版升级到 5.2.13 版
我在项目的 ldap.xml 文件中有以下代码,该代码在 4.3.23 中运行良好,但在 5.2.13 中出错:
<bean id="contextSourceReadTarget" class="org.springframework.ldap.core.support.LdapContextSource">
<property name="urls" value="ldap://localhost:12345" />
<property name="base" value="dc=memorynotfound,dc=com" />
<property name="userDn" value="uid=admin" />
<property name="password" value="secret" />
<property name="dirObjectFactory"
value="org.springframework.ldap.core.support.DefaultDirObjectFactory" />
<property name="pooled" value="false" />
<property name="referral" value="follow" />
</bean>
但是在运行代码时我得到了 java.lang.NoClassDefFoundError: org/springframework/core/JdkVersion
搜索后发现JdkVersion在Spring 5.x中被移除了
我想知道如何修复我的代码以在 Spring 5.x 中正常工作。
这是错误的完整堆栈跟踪:
java.lang.NoClassDefFoundError: org/springframework/core/JdkVersion
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1799)
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:594)
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:516)
at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:324)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:322)
at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:202)
at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:897)
at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:879)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:401)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:292)
at org.springframework.web.context.ContextLoaderListener.contextinitialized(ContextLoaderListener.java:103)
at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:719)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:344)
at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
at weblogic.servlet.internal.EventsManager.executeContextListener(EventsManager.java:251)
at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:204)
at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:189)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1929)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3191)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1864)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:919)
at weblogic.application.internal.ExtensibleModuleWrapper$startStateChange.next(ExtensibleModuleWrapper.java:360)
at weblogic.application.internal.ExtensibleModuleWrapper$startStateChange.next(ExtensibleModuleWrapper.java:356)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:138)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:233)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:228)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:78)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:52)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:752)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:262)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:66)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:165)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:90)
at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:274)
at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:507)
at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:53)
at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:202)
at weblogic.management.deploy.internal.AppTransition$2.transitionAppInternal(AppTransition.java:53)
at weblogic.management.deploy.internal.AppTransition.transitionApp(AppTransition.java:138)
at weblogic.management.deploy.internal.ConfiguredDeployments$2.doItem(ConfiguredDeployments.java:741)
at weblogic.management.deploy.internal.parallel.BucketInvoker$2.run(BucketInvoker.java:95)
at weblogic.work.Contextwrap.run(Contextwrap.java:46)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:681)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:655)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
Caused by: java.lang.NoClassDefFoundError: org/springframework/core/JdkVersion
at org.springframework.ldap.core.support.AbstractContextSource.getJdkVersion(AbstractContextSource.java:485)
at org.springframework.ldap.core.support.AbstractContextSource.afterPropertiesSet(AbstractContextSource.java:342)
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.invokeInitMethods(AbstractAutowireCapablebeanfactory.java:1858)
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1795)
... 57 more
提前致谢!
解决方法
我假设您没有使用 Spring boot,而我们正在讨论“普通弹簧”应用程序。
显然,spring 框架中尝试使用缺失类的代码属于 spring 4 生态系统(否则任何依赖 Spring 5 并使用 ldap 集成的应用程序都将失败,并且 spring 团队将有一个重大错误)
假设没有重大错误,必须在您的应用程序的类路径中存在一些 spring 4 jar
所以我建议执行以下操作:
-
检查类路径。因为我假设您正在编译 WAR - 使用 WinRar 或其他工具打开工件并查看
WEB-INF/lib
文件夹的内容。如果您看到属于 spring 4 的内容 - 使用正确的依赖项修复您的pom.xml
。如果你编译 EAR - 它可能有很多模块需要检查,但基本上过程是一样的,我相信你已经明白了 -
Weblogic 可能在某个共享文件夹中有一些“共享”jar(包括 spring)。我对这个应用服务器不是很熟悉,但是这些 jar 很可能属于 spring 4 生态系统,它们可能会在运行时“找到自己的方式”到你的应用程序的类路径。 Maven 显然不会显示这一点。
你应该一起更新你所有的spring依赖(在这个例子中是spring ldap),检查你所有的spring依赖是否都更新到spring 5,因为spring是一个非常模块化的框架,定义一个关于版本管理的变量总是有帮助的它的模块
,spring-ldap.jar 用于在 Spring 4 中与 LDAP 交互,但此 jar 与 Spring 5 不兼容并导致 NoClassDefFoundError: org/springframework/core/JdkVersion
由于 JdkVersion 类在 Spring 5 中从 spring-core jar 中删除
如果您在 Spring 5 中需要 Spring for LDAP,请使用 spring-ldap-core 依赖
<dependency>
<groupId>org.springframework.ldap</groupId>
<artifactId>spring-ldap-core</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
还要检查是否还有其他较旧的弹簧罐。