http://wiki.atomikos.org/bin/view.pl/Main/HibernateIntegration#With_Spring
http://www.hibernate.org/hib_docs/v3/reference/en/html/transactions.html#transactions-connection-release
经过多次试验, 下面的配置是最合适的 (OpenSessionInView Works fine)
jta.properties
com.atomikos.icatch.service = com.atomikos.icatch.standalone.UserTransactionServiceFactory
#Do you want transaction logging to be enabled or not?
#If set to false, then no logging overhead will be done
#at the risk of losing data after restart or crash.
#Note: this setting may be overridden depending on your license!
com.atomikos.icatch.enable_logging = false
com.atomikos.icatch.automatic_resource_registration = true
xa datasource and jta transaction manager
<bean id="system.datasource"
class="com.atomikos.jdbc.SimpleDataSourceBean" init-method="init" destroy-method="close">
<property name="uniqueResourceName"><value>XADBMS</value></property>
<property name="xaDataSourceClassName">
<value>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</value>
</property>
<property name="xaDataSourceProperties">
<value>url=${jdbc.url};user=${jdbc.username};password=${jdbc.password};pinGlobalTxToPhysicalConnection=true</value>
</property>
<property name="exclusiveConnectionMode"><value>false</value></property>
<property name="connectionPoolSize"><value>10</value></property>
</bean>
<bean id="system.sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="system.datasource"/>
<property name="jtaTransactionManager" ref="atomikosTransactionManager" />
<property name="mappingDirectoryLocations">
<list>
<value>classpath:/com/coheg/</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.query.substitutions">true ${boolean.true.value}, false ${boolean.false.value}, yes ${boolean.true.value}, no ${boolean.false.value}</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">true</prop>
<!-- for jta compatilibility -->
<prop key="current_session_context_class">jta</prop>
<prop key="hibernate.transaction.factory_class">org.hibernate.transaction.JTATransactionFactory</prop>
<prop key="hibernate.connection.release_mode">after_statement</prop>
</props>
</property>
</bean>
<!-- Construct Atomikos UserTransactionManager, needed to configure Spring -->
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager" init-method="init" destroy-method="close">
<!-- when close is called, should we force transactions to terminate or not? -->
<property name="forceShutdown"><value>true</value></property>
</bean>
<!-- Also use Atomikos UserTransactionImp, needed to configure Spring -->
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout"><value>120000</value></property>
</bean>
<!-- Configure the Spring framework to use JTA transactions from Atomikos -->
<bean id="system.platformTransactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager"><ref bean="atomikosTransactionManager" /></property>
<property name="userTransaction"><ref bean="atomikosUserTransaction" /></property>
</bean>
hibernate2 不支持 Connection Release Mode 概念, 在使用 JTA + OpenSessionInView 时会出一些问题