2018-3-1 9:58:22 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2018-3-1 9:58:22 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2018-3-1 9:58:22 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded(‘org.apache.jasper.compiler.TldLocationsCache’, ‘org.apache.jasper.compiler.TldLocationsCache@15e2ccd’)
2018-3-1 9:58:25 org.apache.catalina.core.ApplicationContext log
信息: No Spring WebApplicationInitializer types detected on classpath
2018-3-1 9:58:25 org.apache.catalina.core.StandardContext listenerStart
严重: Error configuring application listener of class org.apache.catalina.deploy.ApplicationListener@1185844
java.lang.UnsupportedClassVersionError: cn/edu/imau/grass/dbbackup/timertask/MyTimerTask : Unsupported major.minor version 51.0 (unable to load class cn.edu.imau.grass.dbbackup.timertask.MyTimerTask)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2899)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1173)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1681)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4854)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1113)
at org.apache.catalina.startup.HostConfig D e p l o y D i r e c t o r y . r u n ( H o s t C o n f i g . j a v a : 1671 ) a t j a v a . u t i l . c o n c u r r e n t . E x e c u t o r s RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask S y n c . i n n e r R u n ( F u t u r e T a s k . j a v a : 303 ) a t j a v a . u t i l . c o n c u r r e n t . F u t u r e T a s k . r u n ( F u t u r e T a s k . j a v a : 138 ) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor W o r k e r . r u n ( T h r e a d P o o l E x e c u t o r . j a v a : 908 ) a t j a v a . l a n g . T h r e a d . r u n ( T h r e a d . j a v a : 619 ) 2018 − 3 − 1 9 : 58 : 25 o r g . a p a c h e . c a t a l i n a . c o r e . S t a n d a r d C o n t e x t l i s t e n e r S t a r t 严 重 : S k i p p e d i n s t a l l i n g a p p l i c a t i o n l i s t e n e r s d u e t o p r e v i o u s e r r o r ( s ) 2018 − 3 − 1 10 : 13 : 50 o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n C o n t e x t l o g 信 息 : C o n t e x t L i s t e n e r : c o n t e x t I n i t i a l i z e d ( ) 2018 − 3 − 1 10 : 13 : 50 o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n C o n t e x t l o g 信 息 : S e s s i o n L i s t e n e r : c o n t e x t I n i t i a l i z e d ( ) 2018 − 3 − 1 10 : 13 : 50 o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n C o n t e x t l o g 信 息 : C o n t e x t L i s t e n e r : a t t r i b u t e A d d e d ( ‘ o r g . a p a c h e . j a s p e r . c o m p i l e r . T l d L o c a t i o n s C a c h e ′ , ‘ o r g . a p a c h e . j a s p e r . c o m p i l e r . T l d L o c a t i o n s C a c h e @ 15 e 2 c c d ′ ) 2018 − 3 − 1 10 : 13 : 54 o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n C o n t e x t l o g 信 息 : N o S p r i n g W e b A p p l i c a t i o n I n i t i a l i z e r t y p e s d e t e c t e d o n c l a s s p a t h 2018 − 3 − 1 10 : 13 : 54 o r g . a p a c h e . c a t a l i n a . c o r e . S t a n d a r d C o n t e x t l i s t e n e r S t a r t 严 重 : E r r o r c o n f i g u r i n g a p p l i c a t i o n l i s t e n e r o f c l a s s o r g . a p a c h e . c a t a l i n a . d e p l o y . A p p l i c a t i o n L i s t e n e r @ 16 c b d 97 j a v a . l a n g . U n s u p p o r t e d C l a s s V e r s i o n E r r o r : c n / e d u / i m a u / g r a s s / d b b a c k u p / t i m e r t a s k / M y T i m e r T a s k : U n s u p p o r t e d m a j o r . m i n o r v e r s i o n 51.0 ( u n a b l e t o l o a d c l a s s c n . e d u . i m a u . g r a s s . d b b a c k u p . t i m e r t a s k . M y T i m e r T a s k ) a t o r g . a p a c h e . c a t a l i n a . l o a d e r . W e b a p p C l a s s L o a d e r . f i n d C l a s s I n t e r n a l ( W e b a p p C l a s s L o a d e r . j a v a : 2899 ) a t o r g . a p a c h e . c a t a l i n a . l o a d e r . W e b a p p C l a s s L o a d e r . f i n d C l a s s ( W e b a p p C l a s s L o a d e r . j a v a : 1173 ) a t o r g . a p a c h e . c a t a l i n a . l o a d e r . W e b a p p C l a s s L o a d e r . l o a d C l a s s ( W e b a p p C l a s s L o a d e r . j a v a : 1681 ) a t o r g . a p a c h e . c a t a l i n a . l o a d e r . W e b a p p C l a s s L o a d e r . l o a d C l a s s ( W e b a p p C l a s s L o a d e r . j a v a : 1559 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . D e f a u l t I n s t a n c e M a n a g e r . l o a d C l a s s ( D e f a u l t I n s t a n c e M a n a g e r . j a v a : 527 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . D e f a u l t I n s t a n c e M a n a g e r . l o a d C l a s s M a y b e P r i v i l e g e d ( D e f a u l t I n s t a n c e M a n a g e r . j a v a : 509 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . D e f a u l t I n s t a n c e M a n a g e r . n e w I n s t a n c e ( D e f a u l t I n s t a n c e M a n a g e r . j a v a : 137 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . S t a n d a r d C o n t e x t . l i s t e n e r S t a r t ( S t a n d a r d C o n t e x t . j a v a : 4854 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . S t a n d a r d C o n t e x t . s t a r t I n t e r n a l ( S t a n d a r d C o n t e x t . j a v a : 5434 ) a t o r g . a p a c h e . c a t a l i n a . u t i l . L i f e c y c l e B a s e . s t a r t ( L i f e c y c l e B a s e . j a v a : 150 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . C o n t a i n e r B a s e . a d d C h i l d I n t e r n a l ( C o n t a i n e r B a s e . j a v a : 901 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . C o n t a i n e r B a s e . a d d C h i l d ( C o n t a i n e r B a s e . j a v a : 877 ) a t o r g . a p a c h e . c a t a l i n a . c o r e . S t a n d a r d H o s t . a d d C h i l d ( S t a n d a r d H o s t . j a v a : 633 ) a t o r g . a p a c h e . c a t a l i n a . s t a r t u p . H o s t C o n f i g . d e p l o y D i r e c t o r y ( H o s t C o n f i g . j a v a : 1113 ) a t o r g . a p a c h e . c a t a l i n a . s t a r t u p . H o s t C o n f i g DeployDirectory.run(HostConfig.java:1671)
at java.util.concurrent.Executors R u n n a b l e A d a p t e r . c a l l ( E x e c u t o r s . j a v a : 441 ) a t j a v a . u t i l . c o n c u r r e n t . F u t u r e T a s k Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor W o r k e r . r u n T a s k ( T h r e a d P o o l E x e c u t o r . j a v a : 886 ) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
2018-3-1 10:13:54 org.apache.catalina.core.StandardContext listenerStart
严重: Skipped installing application listeners due to previous error(s)

Unsupported major.minor version 51.0 (unable to load class，，，，是指当前的tomcat版本和系统环境中的jdk版本不匹配，升级一下JDK版本就好了，记得环境变量也要更新