SpringMVC出现错误-org.springframework.beans.factory.BeanCreationException

1 org.springframework.beans.factory.BeanCreationException: 
2 　　Error creating bean with name ‘indexController‘ defined in file 
3 　　　　[F:\apache-tomcat-7.0.79\webapps\smbms_c09\WEB-INF\classes\cn\smbms\controller\IndexController.class]:
4 　　　　　　 Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: 
5 　　　　　　　　　　Could not instantiate bean class [cn.smbms.controller.IndexController]: Constructor threw exception;
6 　　　　　　　　　　　　 nested exception is java.lang.NoClassDefFoundError: org/apache/log4j/Logger
7     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1039)