spring 动态更改 xml中定义的内容

//add by wyh 2014.10.14
ConfigurableListableBeanFactory factory = context.getBeanFactory();
factory.destroySingletons();
BeanDefinition rmi = factory.getBeanDefinition("rmiServiceProxy" );
TypedStringValue serviceUrl = (TypedStringValue) rmi.getPropertyValues().getPropertyValue("serviceUrl" ).getValue();
serviceUrl.setValue( "rmi://192.168.201.164/rmiService");