Question

我有一个基类，有几个扩展它的派生类。我想将我的Spring AOP Aspect仅限制为超类，以便仅为它创建AOP代理，而不是为派生类创建。

我尝试按如下方式定义切入点：

@Pointcut("execution(* com.blah.platform.persistence.generic.GenericDaoImpl.*(..))")
public void withinGenericDao() {}

其中GenericDaoImpl是超类。

我仍然可以看到代理也是为派生类生成的：

2011-11-24 18:00:28,616 ContainerBackgroundProcessor[StandardEngine[Catalina]] DEBUG [JdkDynamicAopProxy] Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [com.blah.admin.persistence.impl.CircuitDAOImpl@5c81cf46]
2011-11-24 18:00:28,638 ContainerBackgroundProcessor[StandardEngine[Catalina]] DEBUG [JdkDynamicAopProxy] Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [com.blah.admin.persistence.impl.CategoryDAOImpl@55eef3c1]
2011-11-24 18:00:28,645 ContainerBackgroundProcessor[StandardEngine[Catalina]] DEBUG [JdkDynamicAopProxy] Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [com.blah.admin.services.circuit.impl.CircuitsServiceImpl@d50112d]
2011-11-24 18:00:28,953 ContainerBackgroundProcessor[StandardEngine[Catalina]] DEBUG [JdkDynamicAopProxy] Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [com.blah.events.persistence.impl.EventsDAOImpl@4222023a]
2011-11-24 18:00:29,030 ContainerBackgroundProcessor[StandardEngine[Catalina]] DEBUG [JdkDynamicAopProxy] Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [com.blah.events.persistence.impl.PrototypesDAOImpl@d3bef50]

我认为只有当切入点定义如下时才会发生这种情况：

execution(public * com.mycompany.myservice.MyService+.*(..))

有什么想法吗？

Answer 1

您可以将PointCut定义从execution更改为within吗？我过去取得了成功。（请注意，语法略有不同。有关详细信息，请参阅Spring AOP参考文档。）

e.g。 @PointCut("within(com.blah.platform.persistence.generic.GenericDaoImpl)")

Answer 2

子类继承父类的公共方法和属性，包括注释。

Spring AOP - 如何防止派生类被定位

2 个答案: