我们将 atomikos JTA 与 spring 和 2 个不同的 mysql 数据源一起使用。
我们遇到了问题，
当我们在同一个 @Transactional 方法上使用两个不同的存储库(2 个不同的数据源)时，我们会得到一个错误:
Caused by: java.sql.SQLException: Unable to enlist connection the transaction
当第二个存储库对数据源执行某些操作时，就会发生这种情况。
我们认为这与事务管理器(atomikos jta)有关，当同一事务中涉及 2 个不同的数据源时可能会出现问题。
这是数据源xml:
<bean
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<bean id="xaDataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource"
lazy-init="true">
<property name="pinGlobalTxToPhysicalConnection" value="true" />
<property name="url" value="${mysql_url}" />
<property name="user" value="root" />
<property name="password" value="xxx" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.managed.BasicManagedDataSource">
<property name="initialSize" value="10" />
<property name="maxActive" value="100" />
<property name="maxIdle" value="15" />
<property name="minIdle" value="10" />
<property name="timeBetweenEvictionRunsMillis" value="10000" />
<property name="minEvictableIdleTimeMillis" value="60000" />
<property name="validationQuery" value="/* ping */ SELECT 1" />
<property name="testOnBorrow" value="true" />
<property name="testWhileIdle" value="true" />
<property name="xaDataSourceInstance" ref="xaDataSource" />
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="removeAbandoned" value="true" />
<property name="removeAbandonedTimeout" value="300" />
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="packagesToScan" value="com.xxx.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
</props>
</property>
<property name="dataSource" ref="dataSource" />
<property name="jpaDialect">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="MYSQL" />
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
<property name="jpaPropertyMap">
<map>
<entry key="javax.persistence.transactionType" value="JTA" />
<entry key="hibernate.transaction.manager_lookup_class"
value="com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup" />
<entry key="hibernate.connection.autocommit" value="false" />
</map>
</property>
</bean>
<!-- shared data source -->
<bean id="shardXaDataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource"
lazy-init="true">
<property name="pinGlobalTxToPhysicalConnection" value="true" />
<property name="url" value="${shared_mysql_url}" />
<property name="user" value="root" />
<property name="password" value="xxx" />
</bean>
<bean id="shareddDataSource" class="org.apache.commons.dbcp.managed.BasicManagedDataSource">
<property name="initialSize" value="10" />
<property name="maxActive" value="100" />
<property name="maxIdle" value="15" />
<property name="minIdle" value="10" />
<property name="timeBetweenEvictionRunsMillis" value="10000" />
<property name="minEvictableIdleTimeMillis" value="60000" />
<property name="validationQuery" value="/* ping */ SELECT 1" />
<property name="testOnBorrow" value="true" />
<property name="testWhileIdle" value="true" />
<property name="xaDataSourceInstance" ref="shardXaDataSource" />
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="removeAbandoned" value="true" />
<property name="removeAbandonedTimeout" value="300" />
</bean>
<bean id="sharedEntityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="packagesToScan" value="com.xxx.shared.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
</props>
</property>
<property name="dataSource" ref="shareddDataSource" />
<property name="jpaDialect">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="MYSQL" />
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
<property name="jpaPropertyMap">
<map>
<entry key="javax.persistence.transactionType" value="JTA" />
<entry key="hibernate.transaction.manager_lookup_class"
value="com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup" />
<entry key="hibernate.connection.autocommit" value="false" />
</map>
</property>
</bean>
和 transaction.xml :
<tx:annotation-driven proxy-target-class="true" />
<tx:jta-transaction-manager
transaction-manager="atomikosTransactionManager" />
<tx:annotation-driven transaction-manager="atomikosTransactionManager"
proxy-target-class="true" />
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean>
<bean id="transactionManager"
class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="atomikosUserTransaction" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
* 编辑 (19.01.2014) *
因此，根据 M. Deinum 的帮助，我们设法使错误消失，但现在没有发生实际事务(例如，没有回滚)
这是我们的新配置:
数据源.xml:
<bean id="xaDataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource"
lazy-init="true">
<property name="pinGlobalTxToPhysicalConnection" value="true" />
<property name="url" value="${mysql_url}" />
<property name="user" value="root" />
<property name="password" value="6918001" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="jtaDataSource" ref="xaDataSource" />
<property name="packagesToScan" value="com.xxx.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup </prop>
</props>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
</bean>
<bean id="shardXaDataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource"
lazy-init="true">
<property name="pinGlobalTxToPhysicalConnection" value="true" />
<property name="url" value="${shared_mysql_url}" />
<property name="user" value="root" />
<property name="password" value="6918001" />
</bean>
<bean id="sharedEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="jtaDataSource" ref="shardXaDataSource" />
<property name="packagesToScan" value="com.xxx.shared.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup</prop>
</props>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
交易.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<tx:annotation-driven proxy-target-class="true" />
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean>
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="atomikosUserTransaction" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
</beans>
* 编辑 2014 年 1 月 20 日 *
我们设法让它工作，但启动时出现大量警告:
20 Jan 2014 15:14:16 WARN AbstractDataSourceBean - AtomikosDataSoureBean 'xaDataSource': poolSize equals default - this may cause performance problems!
20 Jan 2014 15:14:17 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:17 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:17 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:17 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:17 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:17 WARN JtaPlatformInitiator - HHH000427: Using deprecated org.hibernate.transaction.TransactionManagerLookup strategy [hibernate.transaction.manager_lookup_class], use newer org.hibernate.service.jta.platform.spi.JtaPlatform strategy instead [hibernate.transaction.jta.platform]
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@4063a38e: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AbstractDataSourceBean - AtomikosDataSoureBean 'sharedXaDataSource': poolSize equals default - this may cause performance problems!
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN JtaPlatformInitiator - HHH000427: Using deprecated org.hibernate.transaction.TransactionManagerLookup strategy [hibernate.transaction.manager_lookup_class], use newer org.hibernate.service.jta.platform.spi.JtaPlatform strategy instead [hibernate.transaction.jta.platform]
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN AtomikosConnectionProxy - atomikos connection proxy for com.mysql.jdbc.jdbc2.optional.JDBC4ConnectionWrapper@3d00772f: WARNING: transaction manager not running?
20 Jan 2014 15:14:18 WARN EntityManagerFactoryRegistry - HHH000436: Entity manager factory name (default) is already registered. If entity manager will be clustered or passivated, specify a unique value for property 'hibernate.ejb.entitymanager_factory_name'
20 Jan 2014 15:14:18 WARN UserTransactionServiceImp - No properties path set - looking for transactions.properties in classpath...
20 Jan 2014 15:14:18 WARN UserTransactionServiceImp - transactions.properties not found - looking for jta.properties in classpath...
20 Jan 2014 15:14:18 WARN UserTransactionServiceImp - Failed to open transactions properties file - using default values
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050100104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050100104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050200104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050200104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050300104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050300104 with state COMMITTING
20 Jan 2014 15:14:18 WARN CoordinatorImp - Local heuristic termination of coordinator 10.0.50.117.tm0050400104 with state COMMITTING
新的配置是:
<bean id="xaDataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean"
init-method="init" destroy-method="close">
<property name="xaDataSourceClassName">
<value>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</value>
</property>
<property name="uniqueResourceName"><value>xaDataSource</value></property>
<property name="xaProperties">
<props>
<prop key="url">${mysql_url}</prop>
<prop key="user">root</prop>
<prop key="password">xxx</prop>
</props>
</property>
</bean>
<bean id="sharedXaDataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean"
init-method="init" destroy-method="close">
<property name="xaDataSourceClassName">
<value>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</value>
</property>
<property name="uniqueResourceName"><value>sharedXaDataSource</value></property>
<property name="xaProperties">
<props>
<prop key="url">${shared_mysql_url}</prop>
<prop key="user">root</prop>
<prop key="password">xxx</prop>
</props>
</property>
</bean>
最佳答案
<tx:annotation-driven proxy-target-class="true" />
<tx:jta-transaction-manager
transaction-manager="atomikosTransactionManager" />
<tx:annotation-driven transaction-manager="atomikosTransactionManager"
proxy-target-class="true" />
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean>
<bean id="transactionManager"
class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="atomikosUserTransaction" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
您的配置有缺陷并且包含重复，这可能会使 spring 感到困惑。
JtaTransactionManager以及 <tx:jta-transaction-manager />创建 JtaTransactionManager .接下来你的
<tx:annotation-driven >应该指向 JtaTransactionManager但它指向 UserTransactionManager .所以首先修复你的配置:
<tx:annotation-driven proxy-target-class="true" />
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean>
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="atomikosUserTransaction" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
假设您使用的是最新的 Spring 3.2 版本而不是注入(inject)
dataSource属性注入(inject)jtaDataSource在您的 LocalContainerEntityManagerFactoryBean 上，接下来是您的 jpaProperties和 jpaPropertiesMap可以清理。<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="jtaDataSource" ref="xaDataSource" />
<property name="packagesToScan" value="com.xxx.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup</prop>
</props>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
</bean>
hibernate.connection当您注入(inject) Spring 托管数据源时，属性是无用的。由于注入(inject)了jtaDataSource javax.persistence.transactionType 的 jpa 属性可以删除。 HibernateJpaVendorAdapter已设置 HibernateJpaDialect您可以使用 databasePlatform属性来指定方言。关于您的数据源，您应该对数据源使用 Atomikos 包装器，以便它们了解 Atomikos。为此，请使用
AtomikosDataSourceBean而不是 xa 为您的 JDBC 驱动程序提供的数据源。<bean id="xaDataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close">
<property name="xaDataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource" />
<property name="uniqueResourceName" value="xaDataSource"/>
<property name="xaProperties">
<props>
<prop key="url">${mysql_url}</prop>
<prop key="user">root</prop>
<prop key="password">xxx</prop>
</props>
</property>
</bean>
最后你使用
BasicDataSource作为对休眠的引用，而您应该使用 xa 启用(和包装)的数据源。
关于Spring data - 同一事务上的两个不同数据源导致异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21166914/