Question

My Spring-3.0.5 / Hibernate-3.3.0 webapp不存储集合。使用asscociated集合创建新的persitent对象时，该对象将被持久化，但该集合不会被持久化。在一个测试用例中，一切都运行良好，因此它不是一个错误的Mapping-Annotation。

当我运行测试用例和带有日志级TRACE的webapp时，测试用例会产生类似（grep for“[fF] lush”：

AbstractFlushingEventListener - flushing session
AbstractFlushingEventListener - processing flush-time cascades
AbstractFlushingEventListener - dirty checking collections
AbstractFlushingEventListener - Flushing entities and processing referenced collections
AbstractFlushingEventListener - Processing unreferenced collections
AbstractFlushingEventListener - Scheduling collection removes/(re)creates/updates
AbstractFlushingEventListener - Flushed: 0 insertions, 0 updates, 0 deletions to 4 objects
AbstractFlushingEventListener - Flushed: 2 (re)creations, 0 updates, 0 removals to 3 collections

但是webapp只说：

org.hibernate.impl.SessionImpl - setting flush mode to: MANUAL

当我抓住vor“SessionImpl”时，我得到了

DEBUG: org.hibernate.impl.SessionImpl - opened session at timestamp: 13071848978
DEBUG: org.springframework.orm.hibernate3.HibernateTransactionManager - Opened new Session [org.hibernate.impl.SessionImpl@acaf083] for Hibernate transaction
DEBUG: org.springframework.orm.hibernate3.HibernateTransactionManager - Preparing JDBC Connection of Hibernate Session [org.hibernate.impl.SessionImpl@acaf083]
TRACE: org.hibernate.impl.SessionImpl - setting cache mode to: GET
TRACE: org.hibernate.impl.SessionImpl - setting cache mode to: NORMAL
TRACE: org.hibernate.impl.SessionImpl - setting cache mode to: GET
TRACE: org.hibernate.impl.SessionImpl - setting cache mode to: NORMAL
TRACE: org.hibernate.impl.SessionImpl - after transaction completion
TRACE: org.hibernate.impl.SessionImpl - closing session

用于测试用例和

DEBUG: org.hibernate.impl.SessionImpl - opened session at timestamp: 13071842364
TRACE: org.hibernate.impl.SessionImpl - setting flush mode to: MANUAL
TRACE: org.hibernate.impl.SessionImpl - closing session

用于webapp。

我不知道为什么webapp总是禁用自动刷新！

这是我的Webapp-Configuration（清晰度的简称）：

  <tx:annotation-driven proxy-target-class="true"/>
  <context:spring-configured/>
  <context:component-scan base-package="de.halbekunst.fotos" />
  <mvc:annotation-driven />

和我的资源定义：

  <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
    <property name="driverClass" value="${jdbc.driverClassName}"/>
    <property name="jdbcUrl">
      <value><![CDATA[${jdbc.url}]]></value>
    </property>
    <property name="user" value="${jdbc.username}"/>
    <property name="password" value="${jdbc.password}"/>
    <property name="minPoolSize" value="3"/>
    <property name="maxPoolSize" value="30"/>
    <property name="acquireIncrement" value="3"/>
    <property name="maxIdleTime" value="25200"/>
    <property name="maxIdleTimeExcessConnections" value="14400"/>
    <property name="idleConnectionTestPeriod" value="7200"/>
    <property name="maxStatements" value="50"/>
    <property name="preferredTestQuery" value="SELECT 1;"/>
  </bean>

  <!-- Hibernate SessionFactory -->
  <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="packagesToScan" value="de.halbekunst.fotos"/>
    <property name="hibernateProperties">
      <value>
        hibernate.dialect=${hibernate.dialect}
        hibernate.query.substitutions=true 'Y', false 'N'
        hibernate.cache.use_second_level_cache=false
        hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
      </value>
      <!-- Turn batching off for better error messages under PostgreSQL -->
      <!-- hibernate.jdbc.batch_size=0 -->
    </property>
  </bean>

  <!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->
  <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory"/>
  </bean>

Answer 1

经过一周的调试（我将原始项目划分到我能够识别所描述错误的来源之后），我现在知道出了什么问题：

故障控制器的暴露方法不公开，因此，注释没有效果。

对于有类似问题的任何人：这是我的项目的简化版本，它证明了错误：

https://github.com/kai-moritz/experiment

你需要Maven！要运行该示例，只需执行两个命令

mvn war:inpace
mvn jetty:run

集合不会持久化，因为Spring-Webapp将Hibernate-Flush-Mode设置为Manual

1 个答案: