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用Spring集成的JOTM配置分布式事务，结合hibernate jpa 博客分类： mysqlhibernatespringsqlserveroracle  

程序员文章站 2024-02-28 08:24:16
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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">
    <!-- 支持注解 -->
    <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>
    <!--两个数据源-->
    <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>
    <!-- =================== 事务管理AOP配置 =================== -->
    <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>
    <!-- ===================== AOP事务配置结束 ====================== -->
    <!-- 业务类 -->
    <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" />
			<!-- 最大连接数 -->
			<property name="hibernate.c3p0.max_size" value="20"/>
			<!-- 最小连接数 -->
			<property name="hibernate.c3p0.min_size" value="5"/>
			<!-- 获得连接的超时时间,如果超过这个时间,会抛出异常，单位毫秒 -->
			<property name="hibernate.c3p0.timeout" value="120"/>
			<!-- 最大的PreparedStatement的数量 -->
			<property name="hibernate.c3p0.max_statements" value="100"/>
			<!-- 每隔120秒检查连接池里的空闲连接 ，单位是秒-->
			<property name="hibernate.c3p0.idle_test_period" value="120"/>
			<!-- 当连接池里面的连接用完的时候，C3P0一下获取的新的连接数 -->
			<property name="hibernate.c3p0.acquire_increment" value="2"/>
			<!-- 每次都验证连接是否可用 -->
			<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" />
			<!-- 最大连接数 -->
			<property name="hibernate.c3p0.max_size" value="20"/>
			<!-- 最小连接数 -->
			<property name="hibernate.c3p0.min_size" value="5"/>
			<!-- 获得连接的超时时间,如果超过这个时间,会抛出异常，单位毫秒 -->
			<property name="hibernate.c3p0.timeout" value="120"/>
			<!-- 最大的PreparedStatement的数量 -->
			<property name="hibernate.c3p0.max_statements" value="100"/>
			<!-- 每隔120秒检查连接池里的空闲连接 ，单位是秒-->
			<property name="hibernate.c3p0.idle_test_period" value="120"/>
			<!-- 当连接池里面的连接用完的时候，C3P0一下获取的新的连接数 -->
			<property name="hibernate.c3p0.acquire_increment" value="2"/>
			<!-- 每次都验证连接是否可用 -->
			<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.通过EntityManagerFactory得到sessionFactory 

EntityManager entityManager=this.getCmsEntityManagerFactory().createEntityManager();
Session session=(Session)entityManager.getDelegate();
SessionFactory sessionFactory=session.getSessionFactory();


9.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。

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