香港云服务器redis宕机可通过实现Redis缓存切面来保证业务正常，示例代码：



packagecom.raymon.hcp.security.aspect;



importcom.raymon.hcp.security.annotation.CacheException;



importorg.aspectj.lang.ProceedingJoinPoint;



importorg.aspectj.lang.Signature;



importorg.aspectj.lang.annotation.Around;



importorg.aspectj.lang.annotation.Aspect;



importorg.aspectj.lang.annotation.Pointcut;



importorg.aspectj.lang.reflect.MethodSignature;



importorg.slf4j.Logger;



importorg.slf4j.LoggerFactory;



importorg.springframework.core.annotation.Order;



importorg.springframework.stereotype.Component;



importjava.lang.reflect.Method;



/**



*Redis缓存切面，防止Redis宕机影响正常业务逻辑



*Createdbyzhangleion2020/3/17.



*/



@Aspect



@Component



@Order(2)



publicclassRedisCacheAspect{



privatestaticLoggerLOGGER=LoggerFactory.getLogger(RedisCacheAspect.class);



@Pointcut("execution(public*com.raymon.hcp.portal.service.*CacheService.*(..))||execution(public*com.raymon.hcp.service.*CacheService.*(..))")



publicvoidcacheAspect(){



}



@Around("cacheAspect()")



publicObjectdoAround(ProceedingJoinPointjoinPoint)throwsThrowable{



Signaturesignature=joinPoint.getSignature();



MethodSignaturemethodSignature=(MethodSignature)signature;



Methodmethod=methodSignature.getMethod();



Objectresult=null;



try{



result=joinPoint.proceed();



}catch(Throwablethrowable){



//有CacheException注解的方法需要抛出异常



if(method.isAnnotationPresent(CacheException.class)){



throwthrowable;



}else{



LOGGER.error(throwable.getMessage());



}



}



returnresult;



}



}



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