跟老師演示結果有點出入？問題出在哪兒呢？方法攔截類代碼：?? ???? System.out.println("AopMethodInterceptor : invoke 1 "+ invocation.getMethod().getName()+?? ??? ??? ??? ??? ??? ??? ?"? "+invocation.getStaticPart().getClass().getName());?? ??? ?Object object = invocation.proceed();?? ??? ?System.out.println("AopMethodInterceptor : invoke 2 "+ object);?? ??? ?return object;執行結果：log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).log4j:WARN Please initialize the log4j system properly.AopBeforeAdvice : Method save? org.aop.api.BizLogicImplAopMethodInterceptor : invoke 1 save? java.lang.reflect.MethodBizLogicImpl:save successAopAfterReturningAdvice:afterReturning()save? org.aop.api.BizLogicImpl? BizLogicImpl:save()AopMethodInterceptor : invoke 2 BizLogicImpl:save()