Contents

AOP和注解结合使用

coderabbit included in Spring

2021-12-21 214 words One minute

Contents

AOP 和注解结合使用

aop的切面可以定义为注解，用打印接口访问时间举例

注解

1
2
3
4


@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface CountTime {
}

aop

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25


@Component
@Aspect
@Slf4j
public class CountTimeAspect {
    //定义切入点（也可以直接写在下边）
    @Pointcut("@annotation(com.coderabbit.utildemo.annotation.CountTime)")
    public void countTime(){

    }

    @Around("countTime()")
    public Object doAround(ProceedingJoinPoint joinPoint) {
        Object object = null;
        try {
            long beginTime = System.currentTimeMillis();
            object = joinPoint.proceed();
            String serviceName = joinPoint.getSignature().getName();
            String className = joinPoint.getSignature().getDeclaringTypeName();
            log.info("\nController Name:{}\nService Name:{}\n响应耗时{}",className,serviceName,System.currentTimeMillis() - beginTime +"ms");
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        return object;
    }
}