在人员管理项目开发的样例中，加载spring失败，是什么原因呢，我的IDEA版本更新一些，打印如下

Question

[2020-03-19 05:46:28,115] Artifact sm_web:war exploded: Artifact is being deployed, please wait...
19-Mar-2020 17:46:28.335 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method [manageApp]
 java.lang.IllegalStateException: Error starting child
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
  at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
  at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
  at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
  at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
  at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
  at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
  at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
  at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:691)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1406)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:827)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
  at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
  at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:691)
  at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
  at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:830)
 Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
  at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
  ... 42 more
 Caused by: java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContext
  at java.base/java.lang.Class.getDeclaredFields0(Native Method)
  at java.base/java.lang.Class.privateGetDeclaredFields(Class.java:3062)
  at java.base/java.lang.Class.getDeclaredFields(Class.java:2249)
  at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
  at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
  at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
  at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
  at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:330)
  at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:777)
  at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
  at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5051)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  ... 43 more
 Caused by: java.lang.ClassNotFoundException: org.springframework.context.ApplicationContext
  at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
  at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
  ... 56 more
19-Mar-2020 17:46:28.350 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method [createStandardContext]
 javax.management.RuntimeOperationsException: Exception invoking method [manageApp]
  at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:298)
  at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
  at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
  at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
  at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
  at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
  at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
  at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:691)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1406)
  at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:827)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
  at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
  at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:691)
  at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
  at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
  at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
  at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:830)
 Caused by: java.lang.IllegalStateException: Error starting child
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
  at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
  ... 34 more
 Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
  at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
  ... 42 more
 Caused by: java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContext
  at java.base/java.lang.Class.getDeclaredFields0(Native Method)
  at java.base/java.lang.Class.privateGetDeclaredFields(Class.java:3062)
  at java.base/java.lang.Class.getDeclaredFields(Class.java:2249)
  at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
  at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
  at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
  at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
  at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:330)
  at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:777)
  at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
  at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5051)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  ... 43 more
 Caused by: java.lang.ClassNotFoundException: org.springframework.context.ApplicationContext
  at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
  at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
  ... 56 more
[2020-03-19 05:46:28,366] Artifact sm_web:war exploded: Error during artifact deployment. See server log for details.
19-Mar-2020 17:46:38.118 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [D:\program\apache-tomcat-9.0.31-windows-x64\apache-tomcat-9.0.31\webapps\manager]
19-Mar-2020 17:46:38.305 警告 [Catalina-utility-1] org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [125] milliseconds.
19-Mar-2020 17:46:38.305 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [D:\program\apache-tomcat-9.0.31-windows-x64\apache-tomcat-9.0.31\webapps\manager] has finished in [187] ms