spring中aop的简单实现

aspect类

@Aspect
@Component
public class LogAspect {
    @Pointcut("execution(* com.example.demo.controller.Hello.*(..))")
    private void pointcut01(){
    }
    @Before("pointcut01()")
    public void advice01(){
        System.out.println("liheping1111111111111111111111");
    }
}

controller类

@RestController
public class Hello {
    @RequestMapping("/hello")
    public void add(){
        int a = 5;
        List list = new ArrayList();
        list.add(a);
        System.out.println("liheping2222222222222222222222");
    }
}