spring mvc和junit4冲突Error creating bean with name 'userController': Unsatisfied dependency expressed

UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mvcContentNegotiationManager': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.web.accept.ContentNegotiationManagerFactoryBean] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]

缺少jar包

    
      javax.servlet
      javax.servlet-api
      3.1.0
      provided