弹簧&x2B；Hibernate事务不执行任何操作需要25秒

我有一个使用Spring+Hibernate的Java应用程序。我有一个非常简单的事务，最近刚开始执行它需要很长的时间（~25秒），尽管它没有进行任何模糊/复杂的查询，根据日志，这25秒是在Hibernate的代码中花费的。浏览器只是挂在那里等待它完成

事务通过注释完成，使用org.springframework.orm.hibernate3.LocalSessionFactoryBean作为会话工厂，使用org.springframework.orm.hibernate3.HibernateTransactionManager作为事务管理器

对于Hibernate的缓存，我使用的是Memcached，但根据日志，这不应该是一个问题，至少在此期间它没有触及缓存

我在此提交相关日志：

 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Found thread-bound Session [org.hibernate.impl.SessionImpl@a04a093] for Hibernate transaction
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Using transaction object [org.springframework.orm.hibernate3.HibernateTransactionManager$HibernateTransactionObject@35ca1808]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Creating new transaction with name [com.quebicoca.api.service.PaymentService.buy]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Preparing JDBC Connection of Hibernate Session [org.hibernate.impl.SessionImpl@a04a093]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Exposing Hibernate transaction as JDBC transaction [com.mysql.jdbc.JDBC4Connection@66efd0ce]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Bound value [org.springframework.jdbc.datasource.ConnectionHolder@a75b92e] for key [org.springframework.jdbc.datasource.DriverManagerDataSource@1420ca8b] to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Initializing transaction synchronization
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionInterceptor] Getting transaction for [com.quebicoca.api.service.PaymentService.buy]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Found thread-bound Session [org.hibernate.impl.SessionImpl@a04a093] for Hibernate transaction
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.jdbc.datasource.ConnectionHolder@a75b92e] for key [org.springframework.jdbc.datasource.DriverManagerDataSource@1420ca8b] bound to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Using transaction object [org.springframework.orm.hibernate3.HibernateTransactionManager$HibernateTransactionObject@36d0805f]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Participating in existing transaction
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionInterceptor] Getting transaction for [com.quebicoca.api.service.PaymentService.buy]
 [DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|HashCodeKeyStrategy] Transformed key [UserOrder_holders] to hashCode [-1959252437]
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|HashCodeKeyStrategy] Final cache key: [org.hibernate.cache.UpdateTimestampsCache:0:-1959252437]
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|MemcachedCache] Memcache.set(org.hibernate.cache.UpdateTimestampsCache:0:-1959252437)
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SpyMemcache] MemcachedClient.set(org.hibernate.cache.UpdateTimestampsCache:0:-1959252437)
 ...
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|DispatcherServlet] Successfully completed request
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|TransactionSynchronizationManager] Removed value [org.springframework.orm.hibernate3.SessionHolder@5862af29] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] from thread [http-8080-25]
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|OpenSessionInViewFilter] Closing single Hibernate Session in OpenSessionInViewFilter
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SessionFactoryUtils] Closing Hibernate Session
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|ExceptionTranslationFilter] Chain processed normally
 [DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SecurityContextPersistenceFilter] SecurityContextHolder now cleared, as request processing completed
 [DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
 [DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HibernateTemplate] Found thread-bound Session for HibernateTemplate
 [DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HashCodeKeyStrategy] Transformed key [UserOrder] to hashCode [-1966312925]
 [DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HashCodeKeyStrategy] Final cache key: [org.hibernate.cache.UpdateTimestampsCache:0:-1966312925]

在25秒间隔之前记录的最后一件事是：

[DEBUG][2010-10-09@07:25:30][http-8080-12 | TransactionSynchronizationManager]检索到的值[org.springframework.orm.hibernate3。SessionHolder@3538ce1b]对于键[org.hibernate.impl]。SessionFactoryImpl@c4be179]绑定到线程[http-8080-12]

我是唯一一个在这个日志中登录的人，我关闭了所有人的访问，除了我自己，在Tomcat前面运行的Apache

欢迎任何想法

编辑：

根据请求添加了我的订单类别：

@Entity
@Table(name = "UserOrder")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @ManyToOne(optional = false)
    private Deal deal;
    @CollectionOfElements
    private Map<String, Integer> holders;
    @ManyToOne(optional = false)
    private User user;
    @org.hibernate.annotations.Type(type = "org.joda.time.contrib.hibernate.PersistentDateTime")
    @Column(nullable = false)
    private DateTime buyingDate;
    @Column(nullable = false)
    @Enumerated(EnumType.STRING)
    private OrderState state;
    private BigDecimal payedWithUserCredit;
    @Column(nullable = false)
    private int quantity;
    @Column(nullable = false)
    private String secret;

    private boolean mailSent;

    @Enumerated(EnumType.STRING)
    private PaymentMethod paymentMethod;
}

我完全迷路了…

想明白了

在@Transactional方法中，我会这样做：

orderDAO.save(order);
user.addOrder(order);

因此，订单将被保存，并添加到用户的订单集

调用save时，会插入订单，但不会插入持有者

当退出该方法时，Hibernate将遍历会话中的所有模型，以查看还需要持久化哪些模型（这应该表明只有UserOrder_持有者仍然存在）。似乎要花很长时间才能通过用户的订单和相关交易（其中大部分是在不同的订单中重复）来解决这个问题。我不是说一个庞大的数据库，用于检索订单的查询只会从数据库返回17行。。。它只是跛脚

---

无论如何，将订单与交易的关系设置为延迟解决了问题，至少目前是这样，t可能会在以后出现更多订单。

由于日志消息的过去时，我假设（可能是错误的）检索会话持有者在合理的时间内完成。UserOrder是你的一个类吗？如果是，它是什么样子的？杰夫：不，来自

TransactionSynchronizationManager

的消息意味着检索的结束。Memcached也可能是一个问题，因为HashCodeKeyStrategy是hibernate Memcached中的一个类。希望它能给这个问题带来一些启示。。。。

orderDAO.save(order);
user.addOrder(order);