Day13-09.AOP进阶-切入点表达式-@annotation

1.切入点表达式-@annotation

1.@annotation 切入点表达式，用于匹配标识有特定注解的方法。

    @annotation(com.itheima.anno.Log)

    @Before("annotation(com.itheima.anno.Log)")
    public void before(){
        log.info("before...");
    }

@Slf4j
@Component
@Aspect
public class MyAspect6 {
    //@Pointcut("execution(public void com.itheima.service.impl.DeptServiceImpl.add(*))")
    //@Pointcut("execution(public void com.itheima.service.impl.DeptServiceImpl.add(com.itheima.pojo.Dept)))")
    //@Pointcut("execution(public void com.itheima.service.impl.*Impl.add*(com.itheima.pojo.Dept)))")
    //@Pointcut("execution(public void com.itheima.service.impl.*Impl.add*(..)))")
    //@Pointcut("execution(* com.itheima.service.DeptService.list())||" + "execution(* com.itheima.service.DeptService.delete(java.lang.Integer))")
    @Pointcut("@annotation(com.itheima.aop.MyLog)")
    public void pt() {
    }

    @Before("pt()")
    public void before() {
        log.info("MyAspect6...before");
    }
}

2.小结：

1.execution(修饰符? 返回值 包名.类名.?方法名(参数) throws 异常?)

2.@annotation(注解全类名)