使用Atomikos Transactions Essentials实现多数据源JTA分布式事务

<!--第一个数据库-->
< bean  id = "dataSource"  class = "com.atomikos.jdbc.SimpleDataSourceBean"  init-method = "init"  destroy-method = "close" >
< property  name = "uniqueResourceName" >
< value > mysql/main </ value >
</ property >
< property  name = "xaDataSourceClassName" >
<!--使用MysqlXADataSource(mysql>=5.0,Connector/J>=5.0才可以支持XADatasource)-->
< value > com.mysql.jdbc.jdbc2.optional.MysqlXADataSource </ value >
</ property >
< property  name = "xaDataSourceProperties" >
< value > URL =${jdbc.url}; user =${jdbc.username}; password =${jdbc.password} </ value >
</ property >
< property  name = "exclusiveConnectionMode" >
< value > true </ value >
</ property >
< property  name = "connectionPoolSize" >
< value > 3 </ value >
</ property >
< property  name = "validatingQuery" >
< value > SELECT1 </ value >
</ property >
</ bean >
<!--第二个数据库-->
< bean  id = "dataSourceB"  class = "com.atomikos.jdbc.SimpleDataSourceBean"  init-method = "init"  destroy-method = "close" >
< property  name = "uniqueResourceName" >
< value > mysql/news </ value >
</ property >
< property  name = "xaDataSourceClassName" >
<!--使用MysqlXADataSource(mysql>=5.0,Connector/J>=5.0才可以支持XADatasource)-->
< value > com.mysql.jdbc.jdbc2.optional.MysqlXADataSource </ value >
</ property >
< property  name = "xaDataSourceProperties" >
< value > URL =${jdbc.url.b}; user =${jdbc.username.b}; password =${jdbc.password.b} </ value >
</ property >
< property  name = "exclusiveConnectionMode" >
< value > true </ value >
</ property >
< property  name = "connectionPoolSize" >
< value > 3 </ value >
</ property >
< property  name = "validatingQuery" >
< value > SELECT1 </ value >
</ property >
</ bean >


< bean  id = "lobHandler"  class = "org.springframework.jdbc.support.lob.DefaultLobHandler"  />

<!--第一个数据库的sqlMapClient-->
< bean  id = "sqlMapClient"  class = "org.springframework.orm.ibatis.SqlMapClientFactoryBean" >
< property  name = "configLocation" >
<!--包含第一个数据库表的map-->
< value > classpath:/sqlmap-config.xml </ value >
</ property >
< property  name = "dataSource"  ref = "dataSource"  />
< property  name = "lobHandler"  ref = "lobHandler"  />
</ bean >
<!--第二个数据库的sqlMapClient-->
< bean  id = "sqlMapClientB"  class = "org.springframework.orm.ibatis.SqlMapClientFactoryBean" >
< property  name = "configLocation" >
<!--包含第一个数据库表的map-->
< value > classpath:/sqlmap-configb.xml </ value >
</ property >
< property  name = "dataSource"  ref = "dataSourceB"  />
< property  name = "lobHandler"  ref = "lobHandler"  />
</ bean >

<!--ConstructAtomikosUserTransactionManager,neededtoconfigureSpring-->
< bean  id = "atomikosTransactionManager"  class = "com.atomikos.icatch.jta.UserTransactionManager"  init-method = "init"
destroy-method = "close" >
<!--whencloseiscalled,shouldweforcetransactionstoterminateornot?-->
< property  name = "forceShutdown" >
< value > true </ value >
</ property >
</ bean >

<!--AlsouseAtomikosUserTransactionImp,neededtoconfigureSpring-->
< bean  id = "atomikosUserTransaction"  class = "com.atomikos.icatch.jta.UserTransactionImp" >
< property  name = "transactionTimeout"  value = "240"  />
</ bean >

<!--ConfiguretheSpringframeworktouseJTAtransactionsfromAtomikos-->
< bean  id = "transactionManager"  class = "org.springframework.transaction.jta.JtaTransactionManager" >
< property  name = "transactionManager" >
< ref  bean = "atomikosTransactionManager"  />
</ property >
< property  name = "userTransaction" >
< ref  bean = "atomikosUserTransaction"  />
</ property >
</ bean >

事务的配置, 使用了spring2.0的语法，所以将namesapce也帖出来了.

xml 代码

<? 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:aop = "http://www.springframework.org/schema/aop"
xmlns:tx = "http://www.springframework.org/schema/tx"
xsi:schemaLocation ="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.0.xsd
 http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-2.0.xsd
 http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-2.0.xsd"
default-autowire = "byName"  default-lazy-init = "true" >
<!--支持@AspectJ标记-->
< aop:aspectj-autoproxy />

< aop:config  proxy-target-class = "true" >
< aop:advisor  pointcut = "execution(**Facade.*(..))"  advice-ref = "txAdvice" />
< aop:advisor  pointcut = "execution(**Manager.*(..))"  advice-ref = "txAdvice" />
</ aop:config >

< tx:advice  id = "txAdvice" >
< tx:attributes >
< tx:method  name = "get*"  read-only = "true" />
< tx:method  name = "find*"  read-only = "true" />
< tx:method  name = "has*"  read-only = "true" />
< tx:method  name = "locate*"  read-only = "true" />
< tx:method  name = "*" />
</ tx:attributes >
</ tx:advice >
</ beans >