分布式事务atomikos的原理_spring分布式事务

<!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.1.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.1.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </dependency> <dependency> <groupId>com.atomikos</groupId> <artifactId>transactions-jdbc</artifactId> <version>3.9.3</version> </dependency> <dependency> <groupId>javax.transaction</groupId> <artifactId>jta</artifactId> <version>1.1</version> </dependency>

<!--atomikos是分布式事务使用，jta是spring整合分布式事务使用 -->

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:jta.properties</value><!-- 修改默认配置使用 --> <value>classpath:jdbc.properties</value> <value>classpath:rpc.properties</value> <value>classpath:redis.properties</value> <value>classpath:servicesetting.properties</value> </list> </property> </bean> <!-- 数据源 --> <bean id="abstractDatasource" abstract="true" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close"> <property name="xaDataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource" /> <property name="poolSize" value="${datasource.poolSize}" /> <property name="minPoolSize" value="${datasource.minPoolSize}" /> <property name="maxPoolSize" value="${datasource.maxPoolSize}" /> <!--获取连接失败重新获等待最大时间，在这个时间内如果有可用连接，将返回 --> <property name="borrowConnectionTimeout" value="60" /> <!--最大获取数据时间，如果不设置这个值，Atomikos使用默认的5分钟，那么在处理大批量数据读取的时候，一旦超过5分钟，就会抛出类似 Resultset is close 的错误. --> <property name="reapTimeout" value="20" /> <!--最大闲置时间，超过最小连接池连接的连接将将关闭 --> <property name="maxIdleTime" value="${datasource.maxIdleTime}" /> <!--连接回收时间 --> <property name="maintenanceInterval" value="60" /> <!--java数据库连接池，最大可等待获取datasouce的时间 --> <property name="loginTimeout" value="60" /> <property name="logWriter" value="60" /> <!-- <property name="maxLifetime" value="1800000"/> --> <property name="testQuery"> <value>select 1</value> </property> </bean> <!-- atomikos事务管理器 --> <bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager" init-method="init" destroy-method="close"> <description>UserTransactionManager</description> <property name="forceShutdown"> <value>true</value> </property> </bean> <bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp"> <property name="transactionTimeout" value="300" /> </bean> <!-- spring 事务管理器，包装了atomikos事务 --> <bean id="jtaTransactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"> <property name="transactionManager"> <ref bean="atomikosTransactionManager" /> </property> <property name="userTransaction"> <ref bean="atomikosUserTransaction" /> </property> </bean> <!-- spring 事务模板，和spring的jta事务类似功能 --> <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate"> <property name="transactionManager"> <ref bean="jtaTransactionManager" /> </property> </bean>

<!-- 声明式事务使用 -->

<tx:annotation-driven transaction-manager="jtaTransactionManager" /> <bean id="dataSource0_navi_w_0" parent="abstractDatasource"> <property name="uniqueResourceName" value="mysql/navi_w_0" /> <property name="xaDataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource" /> <property name="xaProperties"> <props> <prop key="URL">${navi_w_0.url}</prop> <prop key="user">${navi_w_0.user}</prop> <prop key="password">${navi_w_0.password}</prop> <prop key="pinGlobalTxToPhysicalConnection">true</prop> <prop key="autoReconnect">true</prop> </props> </property> <property name="maxPoolSize" value="${c3p0_r.maxPoolSize}" /> </bean> <bean id="jdbcTemplate_navi_w_0" class="org.springframework.jdbc.core.JdbcTemplate"> <constructor-arg> <ref bean="dataSource0_navi_w_0" /> </constructor-arg> </bean>

com.atomikos.icatch.serial_jta_transactions=false com.atomikos.icatch.service=com.atomikos.icatch.standalone.UserTransactionServiceFactory com.atomikos.icatch.console_file_name = tm.out com.atomikos.icatch.log_base_name = tmlog com.atomikos.icatch.tm_unique_name = com.atomikos.spring.jdbc.tm com.atomikos.icatch.console_log_level = INFO com.atomikos.icatch.enable_logging=false com.atomikos.icatch.output_dir=./logs/atomikos_logs com.atomikos.icatch.log_base_dir=./logs/atomikos_logs

@Service public class TestService { @Resource(name = "jtaTransactionManager") private JtaTransactionManager jtaTransactionManager; @Resource private TestRpcDao testRpcDao; @Resource private Test2RpcDao test2RpcDao; @Resource(name = "transactionTemplate") private TransactionTemplate transactionTemplate; //编程式 public void test1() { UserTransaction userTx = jtaTransactionManager.getUserTransaction(); try { userTx.begin(); int i = test2RpcDao.testCinfInsert(); System.out.println("cinf:" + i); int j = testRpcDao.testNaviInsert(); System.out.println("navi:" + j); int a = 1 / 0; userTx.commit(); } catch (Exception e) { System.out.println("捕获到异常，进行回滚" + e.getMessage()); e.printStackTrace(); try { userTx.rollback(); } catch (IllegalStateException e1) { System.out.println("IllegalStateException:" + e1.getMessage()); } catch (SecurityException e1) { System.out.println("SecurityException:" + e1.getMessage()); } catch (SystemException e1) { System.out.println("SystemException:" + e1.getMessage()); } } } //声明式，不管用，网上方法：不去扫描Service层注解。尝试了一下，然后解决了这个分布式事务问题。可以去掉@Service试下

@Transactional(rollbackFor={Exception.class, RuntimeException.class})
public String test2(){
int i = test2RpcDao.testCinfInsert();
System.out.println(“cinf:” + i);
int j = testRpcDao.testNaviInsert();
System.out.println(“navi:” + j);
// int a=1/0;
return null;
}

//事务模板方式
public void test3() {
transactionTemplate.execute(new TransactionCallbackWithoutResult() {
@Override
protected void doInTransactionWithoutResult(TransactionStatus status) {
try {
int i = test2RpcDao.testCinfInsert();
System.out.println(“cinf:” + i);
int j = testRpcDao.testNaviInsert();
System.out.println(“navi:” + j);
int a = 1 / 0;
} catch (Exception ex) {
// 通过调用 TransactionStatus 对象的 setRollbackOnly() 方法来回滚事务。
status.setRollbackOnly();
ex.printStackTrace();
}
}
});

/*
* //有返回值的回调 Object obj=transactionTemplate.execute(new
* TransactionCallback(){
*
* @Override public Object doInTransaction(TransactionStatus status) {
*
* return 1; } });
*/
}
}