1Context initialization failed 2org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'dataSource' defined in URL [jar:file:/G:/idjavacode/pyg_qingmu/pygqingmuparent/pyg_qingmu_service_sellergoods/target/pyg_qingmu_service_sellergoods/WEB-INF/lib/pyg_qingmu_dao-1.0-SNAPSHOT.jar!/spring/applicationContext_dao.xml]: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}"; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}" 3 at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:211) 4 at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.processProperties(PropertySourcesPlaceholderConfigurer.java:177) 5 at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.postProcessBeanFactory(PropertySourcesPlaceholderConfigurer.java:152) 6 at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284) 7 at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:166) 8 at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678) 9 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520) 10 at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446) 11 at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328) 12 at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 13 at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4792) 14 at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256) 15 at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 16 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754) 17 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730) 18 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) 19 at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1736) 20 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 21 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 22 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 23 at java.lang.reflect.Method.invoke(Method.java:498) 24 at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) 25 at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) 26 at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) 27 at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:483) 28 at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:432) 2917-Apr-2019 10:07:36.403 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file 30 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 31 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 32 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 33 at java.lang.reflect.Method.invoke(Method.java:498) 34 at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) 35 at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) 36 at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) 37 at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) 38 at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) 39 at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) 40 at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) 4117-Apr-2019 10:07:36.405 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors 42 at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) 43 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 44 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 45 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 46 at java.lang.reflect.Method.invoke(Method.java:498) 47 at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:361) 48 at sun.rmi.transport.Transport$1.run(Transport.java:200) 49 at sun.rmi.transport.Transport$1.run(Transport.java:197) 50 at java.security.AccessController.doPrivileged(Native Method) 51 at sun.rmi.transport.Transport.serviceCall(Transport.java:196) 52 at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) 53 at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) 54 at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) 55 at java.security.AccessController.doPrivileged(Native Method) 56 at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) 57 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 58 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 59 at java.lang.Thread.run(Thread.java:748) 60Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}" 61 at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:174) 62 at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) 63 at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:204) 64 at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:178) 65 at org.springframework.context.support.PropertySourcesPlaceholderConfigurer$2.resolveStringValue(PropertySourcesPlaceholderConfigurer.java:172) 66 at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveStringValue(BeanDefinitionVisitor.java:282) 67 at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveValue(BeanDefinitionVisitor.java:204) 68 at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitPropertyValues(BeanDefinitionVisitor.java:141) 69 at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitBeanDefinition(BeanDefinitionVisitor.java:82) 70 at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:208) 71 ... 54 more
我在遇到这个异常的时候,是因为,我在引入dao层需要的properties配置文件的时候,还需要引入redis的properties的配置文件,然后dao层引入配置文件的时候,找到的是redis的properties文件
xml中能使用例如${xxx}作为占位符，是因为你使用了context:property-placeholderlocation="/xxx/XXX.properties"/，而这个配置其实帮你创建了一个org.springframework.beans.factory.config.PropertySourcesPlaceholderConfigurer的bean，当程序加载到context:property-placeholder时，会扫描所有的bean，然后适配，但是如果你项目中引入了多个资源文件，那么势必在第一次扫描所有bean的时候会有不适配的情况发生，好比我现在扛着一袋子萝卜去找坑种，一个萝卜一个坑，第一袋萝卜找一遍所有的坑，把我袋子里的萝卜扔进坑里，但是发现还有很多坑，而我的袋子里没有这些坑的萝卜，这些萝卜在另外一个袋子里，而我此时不知道，以为自己多挖了很多坑，想报警。
所以只要在dao层的配置文件的
<context:property-placeholder location="classpath*:properties/*.properties" ignore-unresolvable="true"></context:property-placeholder>
中加入一个加入ignore-unresolvable="true"配置,就可以完美的解决这个异常,然后路径的话使用全部的路径,
也就是在classpath后面加一个*,加载全部的所有的配置文件.