事务管理机制

iBatis的事务管理机制

<transactionManager type="JDBC">
  <dataSource type="simple">  //数据库连接池?
    <property name="JDBC.Driver" value="...">
        ...
     数据库驱动,URL,用户名密码配置
        ...
    <property name="Pool.MaximumIdleConnections" value="5"/>
    <property name="Pool.MaximumCheckoutTime"
      value="120000"/>
    <property name="Pool.TimeToWait" value="500"/>
    <property name="Pool.PingQuery" value="select 1 from
      ACCOUNT"/>
    <property name="Pool.PingEnabled" value="false"/>
    <property name="Pool.PingConnectionsOlderThan"
      value="1"/>
    <property name="Pool.PingConnectionsNotUsedFor"
      value="1"/>
  </dataSource>
</transactionManager>