在正在运行的事务中调用 persist 时,映射的对象不会被持久化在 DB (Postgresql 8.4) 中。我正在使用 Spring 事务管理
org.springframework.jdbc.datasource.DataSourceTransactionManager
所以一切都应该没问题。我将 DataSource 上的自动提交模式设置为“false”。当将模式设置为“true”时,将完成提交(并且对象被持久化),但这会导致更大的问题(例如从数据库中获取 blob)。所以我必须将自动提交模式设置为“false”,这也是大家告诉我的首选模式......
这是我的持久性配置(我将代码简化为必要的东西):
<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 -->
我还应该提到我正在使用 3 个不同的事务管理器(当然还有 3 个不同的数据源)......
我自己的事务注释将由上面提到的限定符属性反映:
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Transactional("auth")
public @interface AuthenticationTX{}
“应该”保留对象的带注释的服务类......
@AuthenticationTX
@Override
public void loginClient(Client cl) {
// do stuff
// call dao.persist(cl);
}
这是调用调用数据库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),但没有对象被持久保存在 db 中(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
属性名称="defaultAutoCommit" 值="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。