@Entity
@Table(name = "abc")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Abc{
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")
    private Long id;
    @OneToMany(mappedBy = "Abc")
    @Column(name = "name", nullable = false)
    private String name;
    @Cache
    private List<AbcAccess> accesses = new ArrayList<>();
}

@Entity
@Table(name = "abc_access")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class AbcAccess {
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")
    private Long id;
    @Column(name = "name", nullable = false)
    private String name;
    @ManyToOne(optional = false)
    private Abc abc;
}

背景：springboot+springjpa（hibernate）+ehcache，二级缓存启用。 Cache 是 org.hibernate.annotations.Cache 配置（用kotlin编写）：

@Configuration
@EnableCaching
class AbcConifg{
    private val jcacheConfiguration: javax.cache.configuration.Configuration<Any, Any>
    init {
        val ehcache = jHipsterProperties.cache.ehcache
        jcacheConfiguration = Eh107Configuration.fromEhcacheCacheConfiguration(
            CacheConfigurationBuilder.newCacheConfigurationBuilder(
                Any::class.java, Any::class.java,
                ResourcePoolsBuilder.heap(ehcache.maxEntries)
            )
                .withExpiry(ExpiryPolicyBuilder.timeToLiveExpiration(Duration.ofSeconds(ehcache.timeToLiveSeconds.toLong())))
                .build()
        )
    }
    @Bean
    fun hibernatePropertiesCustomizer(cacheManager: javax.cache.CacheManager) = HibernatePropertiesCustomizer {
        hibernateProperties -> hibernateProperties[ConfigSettings.CACHE_MANAGER] = cacheManager
    }
}

当我询问 Abc 从数据库中，它将结果缓存到二级缓存中。
现在我再插入一个 AbcAccess 进入数据库，然后我查询 Abc 再次从数据库中，它将只从缓存中获取结果。以及 access 在 Abc 不是实时的，它错过了一个 access .