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    @Cacheable(value = "list", key = "#waterCaliberQuery.hashCode()", unless = "#result == null or #result.isEmpty()")

    @CacheEvict(value = "list", allEntries = true)

@Cacheable 放入缓存;条件、key

@CacheEvict 移除缓存,移除key

Spring EL 表达式 ; “#” 作为参数或者相应值