jpa - 有人可以解释 JPA 的查询缓存或发布一些好的链接吗

Question

 Query "{myquery}" is removed from cache  excluded permanently. 
 Query "{myquery}" is not cached because its result is not obtained by executing a 
 select statement. This can happen if the query was evaluated in-memory. The result
 was provided by org.apache.openjpa.datacache.QueryCacheStoreQuery$CachingResultObjectProvider.

我的日志中不断收到此 openjpa 警告消息。我们为查询和数据设置了 L2 缓存。在我看来，本质上这意味着数据是从 QueryCache 结果中获取的。但我不会期望仅通过设置 L2 缓存来发出警告

Answer 1

阅读用户手册中的Prepared SQL Cache。