关于 HotSwappableTargetSource 用法的疑问！
因为公司项目要求登陆时能切换数据源，所以使用了HotSwappableTargetSource这个类，现在问题是根本没办法切换数据源，不知道错在哪了，各位帮我看看：
配置文件：
<bean id= "dataSource " class= "org.apache.commons.dbcp.BasicDataSource ">
<property name= "driverClassName ">
<value> ${datasource.driverClassName} </value>
</property>
<property name= "url ">
<value> ${datasource.url} </value>
</property>
<property name= "username ">
<value> ${datasource.username} </value>
</property>
<property name= "password ">
<value> ${datasource.password} </value>
</property>
</bean>
<bean id= "dataSource1 " class= "org.apache.commons.dbcp.BasicDataSource ">
<property name= "driverClassName ">
<value> ${datasource.driverClassName} </value>
</property>
<property name= "url ">
<value> ${datasource.url1} </value>
</property>
<property name= "username ">
<value> ${datasource.username} </value>
</property>
<property name= "password ">
<value> ${datasource.password} </value>
</property>
</bean>
<bean id= "swappableDataSource " class= "org.springframework.aop.target.HotSwappableTargetSource ">
<constructor-arg>
<ref local= "dataSource "/>
</constructor-arg>
</bean>
<bean id= "swappable " class= "org.springframework.aop.framework.ProxyFactoryBean ">
<property name= "targetSource ">
<ref local= "swappableDataSource "/>
</property>
</bean>
<!-- Hibernate SessionFactory -->
<bean id= "sessionFactory " class= "com.strongit.finance.common.support.HibernateHelpSessionFactoryBean " depends-on= "hibernateMappingFileSetUtil ">
<!-- <property name= "dataSource ">
<ref bean= "dataSource "/>
</property> -->
<property name= "dataSource ">
<ref local= "swappable "/>
</property>
<property name= "mappingResources ">
<!-- 收集所有系统的hibernate配置文件-->
<bean class= "org.springframework.beans.factory.config.MethodInvokingFactoryBean ">
<property name= "targetObject ">
<ref local= "hibernateMappingFileSetUtil "/>
</property>
<property name= "targetMethod ">
<value> getLists </value>
</property>
</bean>
</property>
<property name= "hibernateProperties ">
<props>
<prop key= "hibernate.cache.provider_class "> net.sf.hibernate.cache.OSCacheProvider </prop>
<prop key= "hibernate.query.substitutions "> true 1,false 0 </prop>
<prop key= "hibernate.session_factory_name "> hibernate.sessionFactory </prop>
<prop key= "hibernate.dialect "> org.hibernate.dialect.MySQLDialect </prop>
<prop key= "hibernate.jdbc.use_streams_for_binary "> true </prop>
<prop key= "hibernate.jdbc.fetch_size "> 100 </prop>
<prop key= "hibernate.jdbc.batch_size "> 50 </prop>
<prop key= "hibernate.max_fetch_depth "> 2 </prop>
<prop key= "hibernate.show_sql "> true </prop>
</props>
</property>
<property name= "jndiName ">
<value> hibernate/sessionFactory </value>
</property>
</bean>
代码：
ApplicationContext application = new FileSystemXmlApplicationContext(
"classpath:META-INF/finance/config/applicationContext-datasource.xml ");
HotSwappableTargetSource swapper = (HotSwappableTargetSource)application.getBean( "swappableDataSource ");
DataSource newDataSource = (DataSource)application.getBean( "dataSource1 ");
logger.info( "newDataSource: "+newDataSource.toString());
swapper.swap(newDataSource);
info = (Info) bean;
infoManager.addInfo(info);
现在进行数据源切换后数据还是保存到了第一个dataSource里面，百思不得其解！！
[解决办法]
可热交换的目标源
org.springframework.aop.target.HotSwappableTargetSource 允许切换一个AOP代理的目标,而调用者维持对它的引用.
修改目标源的目标会立即起作用.并且HotSwappableTargetSource是线程安全的.
你可以通过HotSwappableTargetSource的swap()方法 来改变目标,就象下面一样:
HotSwappableTargetSource swapper =
(HotSwappableTargetSource) beanFactory.getBean( "swapper ");
Object oldTarget = swapper.swap(newTarget);
上面的swap()调用会修改swappable这个bean的目标.持有对这个bean应用的客户端 将不会知道这个变化,但会立刻转为使用新的目标对象.
使用TargetSource也没必要添加通知-- 当然任何TargetSource都可以和任何一种通知一起使用.
[解决办法]
帮顶
------解决方案--------------------
UP
[解决办法]
帮顶
[解决办法]
程序和数据库的对话不是持续的!
我觉得,你在不同的数据库之间切换之前,利用spring的依赖注入来连接不同的数据源能实现你要的功能吗?
[解决办法]
事务怎么管理？