SpringHibernate显示了大量的空会话

我正在使用Hibernate5和SpringAPI。使用ApacheTomcat9运行Java8。Mysql 5.x 我使用getSession（）.getCurrentSession（）访问对象，并且每个请求只有一个spring会话。（很高兴粘贴我的struts操作，但不确定是否有帮助）

我启用了stat日志记录，并在最后显示所有查询和会话统计信息。
因此，我会看到一堆查询，然后是（正确的）一个会话摘要：

2017-06-17 19:04:56,621 INFO  org.hibernate.engine.internal.StatisticalLoggingSessionEventListener.end - Session Metrics {
    1591683 nanoseconds spent acquiring 9 JDBC connections;
    1073951 nanoseconds spent releasing 8 JDBC connections;
    1173965 nanoseconds spent preparing 10 JDBC statements;
    6098889 nanoseconds spent executing 10 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;
    100987632 nanoseconds spent executing 7 flushes (flushing a total of 413 entities and 1445 collections);
    95887194 nanoseconds spent executing 3 partial-flushes (flushing a total of 130 entities and 130 collections)
}

但是，在此（会话结束）之后，它还会显示大约20-40个空会话，如下所示：

2017-06-17 19:04:56,873 INFO  org.hibernate.engine.internal.StatisticalLoggingSessionEventListener.end - Session Metrics {
    0 nanoseconds spent acquiring 0 JDBC connections;
    0 nanoseconds spent releasing 0 JDBC connections;
    0 nanoseconds spent preparing 0 JDBC statements;
    0 nanoseconds spent executing 0 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;
    0 nanoseconds spent executing 0 flushes (flushing a total of 0 entities and 0 collections);
    0 nanoseconds spent executing 0 partial-flushes (flushing a total of 0 entities and 0 collections)
}

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有人知道这是否正常吗

我对Hibernate不是很熟悉，但会话通常有一个过期时间（通常默认为30或60分钟）。除非在完成会话时显式使其过期，否则它将一直处于活动状态，直到过期时间结束。这看起来很正常，你可能不需要担心。谢谢！非常感谢你的评论。这让我感觉好多了！hahaPlease发布hibernate spring配置部分（sessionFactory和最终的spring过滤器和事务管理器配置）