java Hibernate每次都准备语句

Question

我正在使用Spring、Hibernate\JPA、MsSQlServer（PROD）和H2Db（DEV）的数据库密集型系统工作

我接到了一些时间密集的电话，这些电话也提出了很多问题。 在我的开发环境中启用Hibernate统计信息，我发现Hibernate似乎在每次执行查询时都会准备语句。下面是开发环境的Hibernate报告（这并不可怕，但在PROD中，并发环境的性能会降低很多）

 695050 nanoseconds spent acquiring 1 JDBC connections;

46807 nanoseconds spent releasing 1 JDBC connections;

**1009874 nanoseconds spent preparing 3 JDBC statements;**

351373 nanoseconds spent executing 3 JDBC statements;

0 nanoseconds spent executing 0 JDBC batches;

0 nanoseconds spent performing 0 L2C puts;

0 nanoseconds spent performing 0 L2C hits;

0 nanoseconds spent performing 0 L2C misses;

21867159 nanoseconds spent executing 1 flushes (flushing a total of 440 entities and 16 collections);

9618 nanoseconds spent executing 1 partial-flushes (flushing a total of 0 entities and 0 collections)

有没有办法让Hibernate重用PreparedStatements