Spring 声明式事务配置的一种形式-DataSource多事务

数据源：

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
  <property name="url" value="jdbc:mysql://localhost:3306/study"></property>
  <property name="username" value="root"></property>
  <property name="password" value=""></property>
</bean>

数据源也可以用以下配置：
jdbc.properties

jdbc.driver=oracle.jdbc.driver.OracleDriver
#jdbc.driver=driverClassName" value="com.mysql.jdbc.Driver
#jdbc.url=jdbc\:mysql\://localhost\:3308/ictjc
#jdbc.username=username
#jdbc.password=password
jdbc.url=jdbc\:oracle\:thin\:@localhost\:1521\:ORCL
jdbc.username=username
jdbc.password=password
jdbc.useUnicode=true
jdbc.characterEncoding=UTF-8

<!--此bean告诉Spring去哪找数据库的配置信息,因为有此Bean才出现下面用${}标记来取变量的语句-->
<bean id="propertyConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
  <property name="location">
    <value>classpath:jdbc.properties</value>
  </property>
</bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
  <property name="driverClassName" value="${jdbc.driver}"/>
  <property name="url" value="${jdbc.url}"/>
  <property name="username" value="${jdbc.username}"/>
  <property name="password" value="${jdbc.password}"/>
  <property name="connectionProperties">
    <props>
      <prop key="useUnicode">${jdbc.useUnicode}</prop>
      <prop key="characterEncoding">${jdbc.characterEncoding}</prop>
    </props>
  </property>
</bean>

事务管理者：

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  <property name="dataSource" ref="dataSource"></property>
</bean>

   
被管理的对象：

<aop:config>
  <aop:advisor advice-ref="wrapperTxAdvice" pointcut="execution(public * com.jsict.ismpb.service.impl.*.*(..))" />
</aop:config> 

   
事务性代理对象：

<tx:advice id="wrapperTxAdvice" transaction-manager="txManager">
  <tx:attributes>
    <tx:method name="save*" propagation="REQUIRED" read-only="false" timeout="25" />
    <tx:method name="updata*" propagation="REQUIRED" read-only="false" timeout="25" />
    <tx:method name="*" propagation="REQUIRED" timeout="25"/>
  </tx:attributes>
</tx:advice>

   
说明：-MyCheckedException表示抛出此导常时回滚，+MyCheckedException表示抛出此导常时提交。
MyBusinessObject：

package mybusiness;
public class MyBusinessObject {
    public void myBusinessMethod() throws MyNameException {
        // do some resource access
        // return some result object or throw MyNameException
     }
}

声明式事务的其中一种形式。