sentinel服务降级

1. 降级逻辑定义

@Slf4j
@Component
public class CategoryFeignClientFallBack implements CategoryFeignClient {

    @Override
    public Result<List<CategoryVo>> findAllCategory() {
        log.error("CategoryFeignClientFallBack...findAllCategory的降级方法执行了...");
        return new Result<>();
    }
}

2. CategoryFeignClient接口改造

@FeignClient(value = "service-product", fallback = CategoryFeignClientFallBack.class)
public interface CategoryFeignClient {

    @GetMapping(value = "/api/inner/product/category/trees")
    public Result<List<CategoryVo>> findAllCategory();
}

3. feign整合sentinel服务保护组件

# feign集成sentinel
feign:
  sentinel:
    enabled: true