maven SSM项目 shiro报错Error creating bean with name 'shiroFilter' defined in file

错误信息如下（lof4j可忽略）：

 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shiroFilter' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor#0' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]: Cannot resolve reference to bean 'securityManager' while setting bean property 'securityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityManager' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]: Cannot resolve reference to bean 'customRealm' while setting bean property 'realm'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.gec.realm.CustomerRealm] for bean with name 'customRealm' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]; nested exception is java.lang.ClassNotFoundException: com.gec.realm.CustomerRealm
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.gec.filters.CustomerFormAuthenticationFilter] for bean with name 'formAuthenticationFilter' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]; nested exception is java.lang.ClassNotFoundException: com.gec.filters.CustomerFormAuthenticationFilter
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.gec.realm.CustomerRealm] for bean with name 'customRealm' defined in file [D:\粤嵌上课代码\阶段三\MyshiroDemo\out\artifacts\MyshiroDemo_war_exploded\WEB-INF\classes\applicationContext-shiro.xml]; nested exception is java.lang.ClassNotFoundException: com.gec.realm.CustomerRealm
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:472)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:232)
    at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:615)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:465)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4643)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5109)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
    at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1737)
    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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406)
    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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
    at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
    at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
    at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)

具体的项目结构：

applicationContext-shiro文件

java.lang.ClassNotFoundException: com.gec.realm.CustomerRealm
找不到CustomerRealm类，应该是jar包问题。

名字有无误么？你这没有找到具体报错的地方啊