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

如何解决redisTemplate.opsForValue().get('id') 返回始终为空

每次我调用 opsForValue().get('id') 而值存在时，我都会得到空结果。

我的配置类：

const myDivs = [];
for (const div of await page.$$("div.b-swatch-value-wrapper")) {
  if (await div.$("span.b-swatch-value--orderable") !== null) {
    myDivs.push(div);
  }
}

我的服务类：

@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();
  }

}

注意：@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())))); } } 正确地将数据保存在 Redis 中，但 shopsOps.set(shopId,shop).subscribe() 不断返回空；