spring 多数据源事务

spring 3对多数据源的事务管理可以不依赖JTA。配置如下：

spring-config-dao.xml：

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:task="http://www.springframework.org/schema/task"  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-4.3.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.3.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsdhttp://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.3.xsddefault-autowire="byName"><!-- BoneCP configuration --><bean id="abstractDataSource" abstract="true" class="com.jolbox.bonecp.BoneCPDataSource" destroy-method="close"><property name="driverClass" value="com.mysql.jdbc.Driver" /><property name="idleConnectionTestPeriodInMinutes" value="6" /><property name="idleMaxAgeInMinutes" value="10" /><property name="maxConnectionsPerPartition" value="10" /><property name="minConnectionsPerPartition" value="1" /><property name="partitionCount" value="3" /><property name="acquireIncrement" value="3" /><property name="statementsCacheSize" value="20" /><property name="releaseHelperThreads" value="3" />        <property name="acquireRetryAttempts" value="3"/>        <property name="connectionTestStatement" value="select 1" />        <property name="logStatementsEnabled" value="true"/>        <property name="connectionTimeoutInMs" value="10000"/>        <property name="queryExecuteTimeLimitInMs" value="5000"/>        <property name="defaultReadOnly" value="false"/></bean><bean id="masterDataSource" parent="abstractDataSource">*****</bean>        <bean id="slaveDataSource" parent="abstractDataSource">        ****    </bean>    <!-- 配置事务管理器 --><bean id="masterTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="masterDataSource" /></bean><!-- 配置事务管理器 --><bean id="slaveTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="slaveDataSource" /></bean><!-- 数据导出jdbc template --><bean id = "slaveJdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="slaveDataSource" /></bean><!-- 数据导出jdbc template --><bean id = "masterJdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="masterDataSource" /></bean><context:component-scan base-package="multpleDb"/><!-- 启用对事务的注解支持 --><tx:annotation-driven transaction-manager="masterTransactionManager" />    <tx:annotation-driven transaction-manager="slaveTransactionManager" /></beans>

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>multpleDb</groupId><artifactId>multpleDb</artifactId><version>0.0.1-SNAPSHOT</version><dependencies><!-- MyBatis&JDBC --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.1</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.0</version></dependency><dependency><groupId>com.jolbox</groupId><artifactId>bonecp</artifactId><version>0.7.1.RELEASE</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.25</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>3.1.4.RELEASE</version></dependency>  <!-- 单元测试 -->        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.5</version>            <scope>test</scope>        </dependency>         <dependency><groupId>org.testng</groupId><artifactId>testng</artifactId><version>6.1.1</version><scope>test</scope></dependency> <dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>3.1.4.RELEASE</version></dependency><!-- LOG4J日志记录 --><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.6.4</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>1.6.4</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.1.1</version></dependency><dependency>    <groupId>cglib</groupId>    <artifactId>cglib-nodep</artifactId>    <version>2.1_3</version></dependency></dependencies></project>

log4j.xml

<?xml version='1.0' encoding='UTF-8' ?><!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"><log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">        <layout class="org.apache.log4j.PatternLayout">            <param name="ConversionPattern" value="[%5p] [%d{yyyy-MM-dd HH:mm:ss SSS}] [%t] [%M] (%F:%L) %m%n"/>        </layout>    </appender>    <root>        <priority value="debug"/>        <appender-ref ref="CONSOLE"/>    </root></log4j:configuration>

dbserver.java

package multpleDb;import javax.annotation.Resource;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;@Service("dbServer")public class DbServer {@Resourceprivate JdbcTemplate slaveJdbcTemplate;@Resourceprivate JdbcTemplate masterJdbcTemplate;@Transactional(value = "masterTransactionManager")public void testDb() {// 正式库插入String inserSql = "insert into ** (**,**) VALUES('aa','aa')";masterJdbcTemplate.update(inserSql);db2();// 沙箱库插入}@Transactional(value = "slaveTransactionManager")public void db2() {String inserSql = "insert into ** (**,**) VALUES('aa','aa')";slaveJdbcTemplate.update(inserSql);}}

DBTest.java

package multpleDb;import javax.annotation.Resource;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = {"classpath:spring-config-dao.xml"})public class DbTest {@ResourceDbServer dbServer;@Testpublic void test(){dbServer.testDb();}}