用spring的InitializingBean的afterPropertiesSet来初始化
org.springframework.beans.factory包下有一个接口是InitializingBean 只有一个方法:
/**
* Invoked by a BeanFactory after it has set all bean properties supplied
* (and satisfied BeanFactoryAware and ApplicationContextAware).
* <p>This method allows the bean instance to perform initialization only
* possible when all bean properties have been set and to throw an
* exception in the event of misconfiguration.
* @throws Exception in the event of misconfiguration (such
* as failure to set an essential property) or if initialization fails.
*/
void afterPropertiesSet() throws Exception;
这个方法将在所有的属性被初始化后调用。
但是会在init前调用。
但是主要的是如果是延迟加载的话,则马上执行。
所以可以在类上加上注解:
import org.springframework.context.annotation.Lazy;
@Lazy(false)
这样spring容器初始化的时候afterPropertiesSet就会被调用。
只需要实现InitializingBean接口就行。
如果代码在这里初始化的话,半天都找不到。。