redis - redisTemplate.opsForValue().get('id') 返回始终为空

Question

每次在值存在时调用 opsForValue().get('id') 时，我都会得到空结果。

我的配置类：

@Configuration
public class CacheConfiguration {

  @Bean
  public ReactiveRedisOperations<String, Shop> shopRedisOperations(
      ReactiveRedisConnectionFactory factory) {
    Jackson2JsonRedisSerializer<Shop> serializer = new Jackson2JsonRedisSerializer<>(Shop.class);

    RedisSerializationContext.RedisSerializationContextBuilder<String, Shop> builder =
        RedisSerializationContext.newSerializationContext(new StringRedisSerializer());

    RedisSerializationContext<String, Shop> context = builder.value(serializer).build();

    return new ReactiveRedisTemplate<>(factory, context);
  }

  @Bean
  public ReactiveValueOperations<String, Shop> shopCacheValueOps(ReactiveRedisOperations<String, Shop> template) {
     return template.opsForValue();
  }

}

我的服务等级：

@Service
public class MyService {
    private final ReactiveValueOperations<String, Shop> shopsOps;

    public Mono<Shop> getShop(String shopId) {
        return shopsOps.get(shopId)
            .switchIfEmpty(Mono.defer(() -> loadFromDb(shopId)
                .doOnNext(shop -> shopsOps.set(shopId, shop).subscribe())
                .switchIfEmpty(Mono.error(() -> new NotFoundException()))));
    }
}

注意：shopsOps.set(shopId, shop).subscribe()在 Redis 中正确保存数据但shopsOps.get(shopId)一直返回空；