运行后报错

严重: Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]

org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'dataSource' defined in class path resource [applicationContext.xml]: Could not resolve placeholder 'jdbc.driverClass' in string value "${jdbc.driverClass}"

at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:209)

at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.processProperties(PropertySourcesPlaceholderConfigurer.java:174)

at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.postProcessBeanFactory(PropertySourcesPlaceholderConfigurer.java:151)

at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694)

at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:669)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:461)

at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4643)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:740)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:716)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703)

at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:620)

at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1832)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)

at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)

at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:530)

at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:429)

at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1578)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)

at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)

at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424)

at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:964)

at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1425)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1415)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)

at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:941)

at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.startup.Catalina.start(Catalina.java:657)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:355)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)