Question

在正在运行的事务中调用persist时，映射对象不会在DB（Postgresql 8.4）中保留。我正在使用Spring交易管理

org.springframework.jdbc.datasource.DataSourceTransactionManager

所以一切都应该没问题。我将DataSource上的autocommit-mode设置为“false”。将模式设置为“true”时，将完成提交（并且持久化对象），但这会导致更大的问题（例如，从db获取blob）。所以我必须将autocommit-mode设置为“false”，这也是每个人都告诉我的首选模式......

这是我的持久性配置（我将代码缩减为必要的东西）：

<bean id="authDatabase" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="org.postgresql.Driver" />
    <property name="url" value="jdbc:postgresql://localhost:5432/authentication_db" />
    <property name="username" value="test"/>
    <property name="password" value="test"/>
    <property name="defaultAutoCommit" value="false" />               
</bean>

<bean id="serviceInfoSessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="dataSource" ref="authDatabase" />
    <!-- Very important for transactional usage with org.springframework.jdbc.datasource.DataSourceTransactionManager -->
    <property name="useTransactionAwareDataSource" value="true"/>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
        </props>
    </property>
    <property name="annotatedClasses">
        <list>
            <!-- mapped objects, not necessary --->
        </list>
    </property>
</bean>

<!-- defaults to transactionManager -->
<tx:annotation-driven/>

<bean id="authTXManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="authDatabase"/> 
    <qualifier value="auth"/>
</bean>

<!-- more stuff -->

我还应该提到我使用的是3种不同的事务管理器（当然还有3种不同的数据源）......

我自己的交易注释将由上面提到的限定符属性反映出来：

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Transactional("auth")
public @interface AuthenticationTX{}

“应该”持久保存对象的带注释的服务类...

@AuthenticationTX
@Override
public void loginClient(Client cl) {
    // do stuff
    // call dao.persist(cl);
}

这是调用调用db调用的服务方法时的日志：

16:21:24,031 DEBUG DataSourceTransactionManager:365 - Creating new transaction with name [com.example.ILoginManager.loginClient]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
16:21:24,078 DEBUG DataSourceTransactionManager:205 - Acquired Connection [jdbc:postgresql://localhost:5432/authentication_db, UserName=auth_user, PostgreSQL Native Driver] for JDBC transaction
Hibernate: select user0_.id as id14_, user0_.email as email14_, user0_.firstname as firstname14_, user0_.isLocked as isLocked14_, user0_.lastLogin as lastLogin14_, user0_.lastname as lastname14_, user0_.loginname as loginname14_, user0_.organisation_id as organis10_14_, user0_.passwort as passwort14_, user0_.userGUID as userGUID14_ from UserAccount user0_ where user0_.loginname=?
Hibernate: select client0_.id as id3_, client0_.clientId as clientId3_, client0_.clientType as clientType3_, client0_.connectedAt as connecte4_3_, client0_.language as language3_, client0_.screenHeight as screenHe6_3_, client0_.screenWidth as screenWi7_3_, client0_.securityToken as security8_3_, client0_.user_id as user9_3_ from Client client0_ where client0_.user_id=?
Hibernate: select user0_.id as id14_, user0_.email as email14_, user0_.firstname as firstname14_, user0_.isLocked as isLocked14_, user0_.lastLogin as lastLogin14_, user0_.lastname as lastname14_, user0_.loginname as loginname14_, user0_.organisation_id as organis10_14_, user0_.passwort as passwort14_, user0_.userGUID as userGUID14_ from UserAccount user0_ where user0_.loginname=?
Hibernate: select nextval ('hibernate_sequence')
Hibernate: insert into Client (clientId, clientType, connectedAt, language, screenHeight, screenWidth, securityToken, user_id, id) values (?, ?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: update UserAccount set email=?, firstname=?, isLocked=?, lastLogin=?, lastname=?, loginname=?, organisation_id=?, passwort=?, userGUID=? where id=?
16:21:24,187 DEBUG DataSourceTransactionManager:752 - Initiating transaction commit
16:21:24,187 DEBUG DataSourceTransactionManager:265 - Committing JDBC transaction on Connection [jdbc:postgresql://localhost:5432/authentication_db, UserName=auth_user, PostgreSQL Native Driver]
16:21:24,187 DEBUG DataSourceTransactionManager:323 - Releasing JDBC Connection [jdbc:postgresql://localhost:5432/authentication_db, UserName=auth_user, PostgreSQL Native Driver] after transaction

如您所见，事务正在提交（根据日志），但db中没有持久化对象（尽管正在执行插入和更新）。

在我的数据源配置中将提交模式设置为

时

property name =“defaultAutoCommit”value =“true”

一切正常！

我真的不知道是什么导致了这个奇怪的问题......如果有人能给我一个提示，我会很高兴。

Answer 1

要使用Hibernate，您需要HibernateTransactionManager：

<bean id="authTXManager" 
    class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 
    <property name="sessionFactory" ref="serviceInfoSessionFactory"/>  
    <qualifier value="auth"/> 
</bean>

postgresql上的事务没有提交，映射的对象没有使用autoCommit = false持久化

1 个答案: