简易记录@Aspect

最新推荐文章于 2025-07-24 09:26:57 发布

原创最新推荐文章于 2025-07-24 09:26:57 发布 · 146 阅读

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简单写一下切面实现:

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD,ElementType.TYPE})
public @interface MyPointcut {
}

注解切点

@Aspect
@Component
public class MyAdvice {

    @Pointcut("@annotation(com.example.demo4.MyPointcut)")
    private void MyPointcut(){};

    @Around("MyPointcut()")
    public Object around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        System.out.println("环绕前通知");
        Object proceed = proceedingJoinPoint.proceed();
        System.out.println("环绕后通知");
        return proceed;
    }

}

切面实现

@Component
public class TestAspect {

    @MyPointcut
    public void test1(){
        System.out.println("testaspect....");
    }

}

应用实现

@SpringBootApplication
public class Demo4Application {

    public static void main(String[] args) {
        ConfigurableApplicationContext context = SpringApplication.run(Demo4Application.class, args);
        TestAspect testAspect = context.getBean(TestAspect.class);
        testAspect.test1();
    }

}

运行实现

2019-06-11 11:01:45.261  INFO 7000 --- [  restartedMain] com.example.demo4.Demo4Application       : Started Demo4Application in 3.782 seconds (JVM running for 9.369)
环绕前通知
testaspect....
环绕后通知
2019-06-11 11:01:45.294  INFO 7000 --- [      Thread-10] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'

结果展示