java 新手求教 Cannot find class [] for bean with name defined in ServletContext

严重: Context initialization failed
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.shu.shutest.dao.impl.UserDAOHibernate] for bean with name 'userDao' defined in ServletContext resource [/WEB-INF/applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: com.shu.shutest.dao.impl.UserDAOHibernate org.springf