用Spring集成的JOTM配置分布式事务

最新推荐文章于 2020-03-06 12:09:58 发布

原创最新推荐文章于 2020-03-06 12:09:58 发布 · 8.4k 阅读

10 ·

CC 4.0 BY-SA版权

文章标签：

#spring #class #bean #aop #encoding #attributes

Spring 专栏收录该内容

3 篇文章

订阅专栏

本文档展示了如何在Spring框架中配置JOTM以处理涉及两个Oracle数据库的分布式事务。主要步骤包括设置JotmFactoryBean、定义JtaTransactionManager、配置两个数据源、设置事务管理AOP，以及实体工厂。测试过程中遇到的关于数据库连接错误的问题，通过在数据源配置中添加user和password属性得到了解决。

最近项目中涉及到了两个Oracle数据库的操作。需要用到分布式事务,研究之后贴出代码供大家参考。

1.dao-core.xml(核心事务配置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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  <context:annotation-config /> <bean id="jotm" class="org.springframework.transaction.jta.JotmFactoryBean" /> <bean id="txManager" class="org.springframework.transaction.jta.JtaTransactionManager"> <property name="userTransaction" ref="jotm" /> </bean>  <bean id="cmcDataSource" class="org.enhydra.jdbc.pool.StandardXAPoolDataSource" destroy-method="shutdown"> <property name="dataSource"> <bean class="org.enhydra.jdbc.standard.StandardXADataSource" destroy-method="shutdown"> <property name="transactionManager" ref="jotm"/> <property name="driverName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@192.168.6.80:1521:C2SServer"/> <property name="user" value="d1xn_cmc"/> <property name="password" value="d1xn_cmc"/> </bean> </property> <property name="user" value="d1xn_cmc"/> <property name="password" value="d1xn_cmc"/> </bean> <bean id="woniuDataSource" class="org.enhydra.jdbc.pool.StandardXAPoolDataSource" destroy-method="shutdown"> <property name="dataSource"> <bean class="org.enhydra.jdbc.standard.StandardXADataSource" destroy-method="shutdown"> <property name="transactionManager" ref="jotm"/> <property name="driverName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@192.168.6.80:1521:C2SServer"/> <property name="user" value="sn_woniu"/> <property name="password" value="sn_woniu"/> </bean> </property> <property name="user" value="sn_woniu"/> <property name="password" value="sn_woniu"/> </bean>  <bean id="cmcEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceXmlLocation" value="classpath:com/d1xn/commercial/dao/config/persistence.xml"/> <property name="persistenceUnitName" value="CMC_PU"/> <property name="dataSource" ref="cmcDataSource"/> <property name="loadTimeWeaver"> <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/> </property> <property name="jpaPropertyMap"> <map> <entry key="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JOTMTransactionManagerLookup" /> <entry key="hibernate.transaction.flush_before_completion" value="true" /> <entry key="hibernate.transaction.auto_close_session" value="true" /> <entry key="hibernate.current_session_context_class" value="jta" /> <entry key="hibernate.connection.release_mode" value="auto" /> </map> </property> </bean> <bean id="woniuEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceXmlLocation" value="classpath:com/d1xn/commercial/dao/config/persistenceWoniu.xml"/> <property name="persistenceUnitName" value="WONIU_PU"/> <property name="dataSource" ref="woniuDataSource"/> <property name="loadTimeWeaver"> <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/> </property> <property name="jpaPropertyMap"> <map> <entry key="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JOTMTransactionManagerLookup" /> <entry key="hibernate.transaction.flush_before_completion" value="true" /> <entry key="hibernate.transaction.auto_close_session" value="true" /> <entry key="hibernate.current_session_context_class" value="jta" /> <entry key="hibernate.connection.release_mode" value="auto" /> </map> </property> </bean> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="save*" rollback-for="Excepiton"/> <tx:method name="delete*" rollback-for="Excepiton"/> <tx:method name="update*" rollback-for="Excepiton"/> <tx:method name="find*" read-only="true"/> <tx:method name="*" rollback-for="java.lang.Exception"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="userOperation" expression="execution(public * com.d1xn.commercial.dao.imp.*Service*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="userOperation"/> </aop:config>   <bean id="cmcDaoHelper" class="com.d1xn.dao.core.DAOHelper" init-method="init"> <property name="entityManagerHelper"> <bean class="com.d1xn.commercial.dao.cmc.CmcEntityManagerHelper"/> </property> </bean> <bean id="woniuDaoHelper" class="com.d1xn.dao.core.DAOHelper" init-method="init"> <property name="entityManagerHelper"> <bean class="com.woniu.system.dao.WoniuEntityManagerHelper"/> </property> </bean> <bean id="jtaTestService" class="com.d1xn.commercial.dao.imp.JTATestService"> <property name="cmcDaoHelper" ref="cmcDaoHelper"/> <property name="woniuDaoHelper" ref="woniuDaoHelper"/> </bean> </beans>

2.persistence.xml

<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="CMC_PU" transaction-type="JTA"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>com.d1xn.commercial.pojo.cmc.entity.GameGoodsType</class> <class>com.d1xn.commercial.pojo.cmc.entity.ThreeRole</class> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect" /> <property name="hibernate.show_sql" value="true" />  <property name="hibernate.c3p0.max_size" value="20"/>  <property name="hibernate.c3p0.min_size" value="5"/>  <property name="hibernate.c3p0.timeout" value="120"/>  <property name="hibernate.c3p0.max_statements" value="100"/>  <property name="hibernate.c3p0.idle_test_period" value="120"/>  <property name="hibernate.c3p0.acquire_increment" value="2"/>  <property name="hibernate.c3p0.validate" value="true"/> </properties> </persistence-unit> </persistence>

3.persistenceWoniu.xml

<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="WONIU_PU" transaction-type="JTA"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>com.woniu.system.pojo.SysCompany</class> <class>com.woniu.system.pojo.SysUserRole</class> <class>com.woniu.system.pojo.SysUserRoleId</class> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect" /> <property name="hibernate.show_sql" value="true" />  <property name="hibernate.c3p0.max_size" value="20"/>  <property name="hibernate.c3p0.min_size" value="5"/>  <property name="hibernate.c3p0.timeout" value="120"/>  <property name="hibernate.c3p0.max_statements" value="100"/>  <property name="hibernate.c3p0.idle_test_period" value="120"/>  <property name="hibernate.c3p0.acquire_increment" value="2"/>  <property name="hibernate.c3p0.validate" value="true"/> </properties> </persistence-unit> </persistence>

4.MyTest-context.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <import resource="classpath:com/d1xn/commercial/dao/config/dao-core.xml"/> </beans>

5.IJTATestService.java接口

public interface IJTATestService { public boolean saveEntity(IEntity woniu, IEntity cmc); }

6.JTATestService.java类

public class JTATestService implements IJTATestService { private DAOHelper woniuDaoHelper; private DAOHelper cmcDaoHelper; public boolean saveEntity(IEntity woniu, IEntity cmc) { woniuDaoHelper.persist(woniu); cmcDaoHelper.persist(cmc); return false; } public void setWoniuDaoHelper(DAOHelper woniuDaoHelper) { this.woniuDaoHelper = woniuDaoHelper; } public void setCmcDaoHelper(DAOHelper cmcDaoHelper) { this.cmcDaoHelper = cmcDaoHelper; } }

7. MyTest.java

@ContextConfiguration @RunWith(SpringJUnit4ClassRunner.class) public class MyTest { @Autowired private IJTATestService service; @org.junit.Test public void test() { SysCompany sysCompany = new SysCompany(); sysCompany.setSName("sss"); sysCompany.setSState("0"); SysUserRole role = new SysUserRole(); SysUserRoleId id = new SysUserRoleId(); id.setNRoleId(2L); id.setNUserId(1L); role.setId(id); GameGoodsType type = new GameGoodsType(); type.setSNo("aaa"); type.setSName("222"); type.setSState("1"); service.saveEntity(sysCompany, type); } }

8.特别说明

在项目测试的过程中，有一个错误困扰了我很久，总会报这样的错误

Hibernate: select SN_WONIU.SYS_COMPANY_SQ.nextval from dual
java.sql.SQLException: Cannot get connection for URL jdbc:oracle:thin:@192.168.6.80:1521:C2SServer : 调用中无效的参数

Google了一大圈有不少人碰到这个问题，后来偶是在http://forum.springsource.org/archive/index.php/t-28145.html找到了答案,就是在配置数据源的时候，StandardXAPoolDataSource中要配置user和password，StandardXADataSource中也要配置user和password。不明白为啥，希望高人不吝赐教。