分布式事务atomikos的原理_spring分布式事务

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atomikos+jta+JdbcTemplate

依赖包（部分）

<!-- 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 -->

事务等配置

<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>

jta.properties(修改默认配置使用)

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

测试，JdbcTemplate操作数据库

@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; } });
*/
}
}

atomikos 配置好后 @transactional 注解不生效的问题 https://blog.csdn.net/u011696259/article/details/71603480

atomikos JTA/XA全局事务 http://www.tianshouzhi.com/api/tutorials/distributed_transaction/386

【分布式事务】使用atomikos+jta解决分布式事务问题 https://blog.csdn.net/kisscatforever/article/details/79129055

发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/167031.html原文链接：https://javaforall.cn

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