java - 如何将服务传递给 EmptyInterceptor 类？

Question

public class Auditing extends EmptyInterceptor {

    @Resource
    private ApplicationService applicationService;

    public boolean onFlushDirty(Object entity, Serializable id,Object[] currentState,   Object[] previousState, String[] propertyNames, Type[] types) {   
        if(applicationService == null){
            System.out.println("applicationService is null");
        }

        return(true);
    }

}

我观察到每个休眠操作都会创建一个新的 Auditing 对象，并且在 onFlushDirty() 中它总是打印“ applicationService is null ”

谁能告诉我如何使 ApplicationService 在 EmptyInterceptor 中可用？

Answer 1

I found a work around for this by having a Class with static applicationService property. Now by creating a static reference for it i can use applicationService.

Its working for now.. Please post any better or efficient suggestions if you have :)

Regards,

Answer 2

您可以通过实现 ApplicationContextAware 接口来创建具有应用程序上下文对象的类。

public class ApplicationContextProvider implements ApplicationContextAware {
    private static ApplicationContext context;

    public static ApplicationContext getApplicationContext() {
        return context;
    }

    @Override
    public void setApplicationContext(ApplicationContext ctx) {
        context = ctx;
    }
}

现在您可以使用以下代码获取您的 bean。

applicationService = (ApplicationService ) ApplicationContextProvider.getApplicationContext().getBean("applicationService")

上面的代码将来可以用于获取任何其他 bean，并且不需要您继续添加静态 bean。