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我有两个服务“产品服务”和“评级服务”。我正在打一个从产品服务到评级服务的休息电话以获取数据。我已经在产品服务中编写了重试配置，并期望每当评级服务引发异常时，产品服务都会根据配置重试其余调用。但它没有发生。每当从 rating-service 抛出异常时，product-service 也会抛出异常而不重试和回退。请在下面找到这两种服务的代码。在此处检查这两项服务的代码。

产品服务 >> ProductServiceImpl.java

    @Retry(name = "rating-service", fallbackMethod = "getDefaultProductRating")
    public List<ProductRatingDTO> getProductRating(String id) {
        String reqRatingServiceUrl = ratingServiceUrl + "/" + id;
        log.info("Making a request to " + reqRatingServiceUrl + " at :" + LocalDateTime.now());
        ResponseEntity<List<ProductRatingDTO>> productRatingDTOListRE = restTemplate.exchange(reqRatingServiceUrl,
                HttpMethod.GET, null, new ParameterizedTypeReference<List<ProductRatingDTO>>() {
                });
        List<ProductRatingDTO> productRatingDTOList = productRatingDTOListRE.getBody();
        log.info("Retrieved rating for id {} are: {}", id, productRatingDTOList);
        return productRatingDTOList;
    }

    public List<ProductRatingDTO> getDefaultProductRating(String id, Exception ex) {
        log.warn("fallback method: " + ex.getMessage());
        return new ArrayList<>();
    }

产品服务 >> application.yml

resilience4j.retry:
  instances:
    rating-service:
      maxAttempts: 3
      waitDuration: 10s
      retryExceptions:
        - org.springframework.web.client.HttpServerErrorException
      ignoreExceptions:
        - java.lang.ArrayIndexOutOfBoundsException

评级服务 >> RatingsServiceImpl.java

    @Override
    public List<RatingsDTO> getRatings(String productId) {
        log.info("Ratings required for product id: "+productId);
        List<RatingsDTO> ratingsDTOList = ratingsRepository.getRatingsByProductId(productId);
        log.info("Ratings fetched for product id {} are : {}",productId,ratingsDTOList);
        if (ThreadLocalRandom.current().nextInt(0,5) == 0){ // Erratic block
            log.error("Erratic");
            throw new org.springframework.web.client.HttpServerErrorException(HttpStatus.INTERNAL_SERVER_ERROR);
        }
        return ratingsDTOList;
    }

请让我知道我在哪里做错了？

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0 回答 0