springboot启动tomcat报错java.lang.NoClassDefFoundError:javax/el/ELManager仅记录

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/el/ELManager



	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1710)



	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583)



	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)



	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)



	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)



	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)



	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:205)



	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:205)



	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:709)



	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:534)



	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)



	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)



	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388)



	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)



	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:155)



	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:135)



	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:87)



	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)



	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5423)



	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)



	... 42 more



Caused by: java.lang.NoClassDefFoundError: javax/el/ELManager



	at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.buildExpressionFactory(ResourceBundleMessageInterpolator.java:88)



	at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.(ResourceBundleMessageInterpolator.java:47)



	at org.hibernate.validator.internal.engine.ConfigurationImpl.getDefaultMessageInterpolator(ConfigurationImpl.java:461)



	at org.springframework.boot.validation.MessageInterpolatorFactory.getObject(MessageInterpolatorFactory.java:54)



	at org.springframework.boot.context.properties.ConfigurationPropertiesJsr303Validator$Delegate.(ConfigurationPropertiesJsr303Validator.java:71)



	at org.springframework.boot.context.properties.ConfigurationPropertiesJsr303Validator.(ConfigurationPropertiesJsr303Validator.java:43)



	at org.springframework.boot.context.properties.ConfigurationPropertiesJsr303Validator.getIfJsr303Present(ConfigurationPropertiesJsr303Validator.java:64)



	at org.springframework.boot.context.properties.ConfigurationPropertiesBinder.(ConfigurationPropertiesBinder.java:69)



	at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor.afterPropertiesSet(ConfigurationPropertiesBindingPostProcessor.java:78)



	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1769)



	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1706)



	... 61 more

tomcat : 7.0.47

jdk       : 1.8

看了网上所说，把tomcat/lib下的el-api.jar拷贝到D:\xxx\jdk1.8.0_121\jre\lib\ext发现还是一样的异常；

反编译el-api的确没有ElManager，在el-api3.0才引入

so ,下载el-api3.0.jar,放到jdk或者只放tomcat/lib都可；（直接使用tomcat8也可解决）