NoSuchBeanDefinitionException: No bean named 'cacheManager' available错误原因

NoSuchBeanDefinitionException: No bean named ‘cacheManager’ available错误原因

idea项目启动时报错：
Error creating bean with name ‘org.springframework.cache.interceptor.CacheInterceptor#0’: Cannot resolve reference to bean ‘cacheManager’ while setting bean property ‘cacheManager’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named ‘cacheManager’ available

原因：Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named ‘cacheManager’ available

如图：

原因是在导<tx:annotation-driven/>约束时idea自动导入了如图的约束，修改或就ok了~~
太智能的idde不一定是好事，括弧笑~