spring AOP的困惑，使用AOP后原来注入的bean丢失

liuheworld 2011-10-12 07:42:26

spring3 struts2 hibernate3.5

Action 中注入Bean
@Resource
private HibernateTemplate ht;
构造方法执行一次

可以使用，但是当我写了一个切入程序切入 Action 后，构造方法执行两次，ht=null ，怀疑是切入造成的。切入后构造方法执行两次，可能的原因是ht第一次注入，执行第二次的时候ht没有被注入。
问题是：
既然是切入，Action也不应该构造两次啊，愿听各位指教！

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liuheworld 2011-10-13

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难道 Action 不能切入吗？或者说是不能进行事务管理？

liuheworld 2011-10-13

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修改了，不起作用，现在只有一种方式了，代码如下：

<aop:config>

	<aop:pointcut id="allServiceMethod"

		expression="execution(* com.test.erp.test.action.*.*(..))" />

	

	<aop:advisor advice-ref="txAdvice" pointcut-ref="allServiceMethod" />

</aop:config>



<bean class="org.springframework.orm.hibernate3.HibernateTemplate">

	<property name="sessionFactory" ref="sessionFactory"></property>

</bean>



@Resource

private HibernateTemplate ht;

[Quote=引用 4 楼 wjacketcn 的回复:]

@Aspect
@Component
public class BeforeAdvice{

@Pointcut("execution(* com.test.erp.test.action.*.*(..))")
public void rolePoint(){}

@Before("rolePoint()")
public void bef……
[/Quote]

wjacketcn 2011-10-13

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@Aspect
@Component
public class BeforeAdvice{

@Pointcut("execution(* com.test.erp.test.action.*.*(..))")
public void rolePoint(){}

@Before("rolePoint()")
public void beforeAdvice() {
System.out.println("before advice is executed!");
}

}

用这种注解的方式就可以了，不需要在配置文件里再写：

<aop:config>

<aop:pointcut id="allServiceMethod"
expression="(execution(* com.test.erp.core.service.impl.*.*(..)) or
execution(* com.test.erp.test.service.impl.*.*(..)) or
execution(* com.test.erp.test.action.*.*(..)) )" />

<aop:advisor advice-ref="txAdvice" pointcut-ref="allServiceMethod" />
</aop:config>

或只写配置文件，不用：

@Aspect
@Component
public class BeforeAdvice{

@Pointcut("execution(* com.test.erp.test.action.*.*(..))")
public void rolePoint(){}

@Before("rolePoint()")
public void beforeAdvice() {
System.out.println("before advice is executed!");
}

}

这两种方式是一样的，只用一种方式就行，不然就重复了。

liuheworld 2011-10-13

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<aop:config>

	

	<aop:pointcut id="allServiceMethod"

		expression="(execution(* com.test.erp.core.service.impl.*.*(..)) or

					execution(* com.test.erp.test.service.impl.*.*(..)) or

					execution(* com.test.erp.test.action.*.*(..))  )" />

	

	<aop:advisor advice-ref="txAdvice" pointcut-ref="allServiceMethod" />

</aop:config>





<bean id="ht" class="org.springframework.orm.hibernate3.HibernateTemplate">

	<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

现象是我在没加入红色部分之前是可以用
@Resource
private HibernateTemplate ht;
加入红色部分(

execution(* com.test.erp.test.action.*.*(..))

)后， ht 注入不进去，求高手解答

liuheworld 2011-10-13

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MemberAction!
2011-10-13 08:55:04,108 [http-8080-3] DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] - Returning cached instance of singleton bean 'org.springframework.aop.support.DefaultBeanFactoryPointcutAdvisor#0'
2011-10-13 08:55:04,108 [http-8080-3] DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] - Returning cached instance of singleton bean 'org.springframework.aop.support.DefaultBeanFactoryPointcutAdvisor#0'
2011-10-13 08:55:04,109 [http-8080-3] DEBUG [org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator] - Creating implicit proxy for bean 'com.test.erp.test.action.MemberAction' with 0 common interceptors and 2 specific interceptors
2011-10-13 08:55:04,109 [http-8080-3] DEBUG [org.springframework.aop.framework.Cglib2AopProxy] - Creating CGLIB2 proxy: target source is SingletonTargetSource for target object [com.test.erp.test.action.MemberAction@1307957]
MemberAction!
2011-10-13 08:55:04,893 [http-8080-3] DEBUG [org.springframework.beans.factory.annotation.InjectionMetadata] - Processing injected method of bean 'com.test.erp.test.action.MemberAction': ResourceElement for private org.springframework.orm.hibernate3.HibernateTemplate com.test.erp.test.action.MemberAction.ht
2011-10-13 08:55:04,893 [http-8080-3] DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] - Returning cached instance of singleton bean 'ht'
before advice is executed!
2011-10-13 08:55:04,917 [http-8080-3] DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] - Returning cached instance of singleton bean 'org.springframework.aop.support.DefaultBeanFactoryPointcutAdvisor#0'
2011-10-13 08:55:04,918 [http-8080-3] DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] - Returning cached instance of singleton bean 'org.springframework.aop.support.DefaultBeanFactoryPointcutAdvisor#0'
before advice is executed!
before advice is executed!
before advice is executed!
before advice is executed!
before advice is executed!
before advice is executed!
请仁兄帮我分析一下日志

@Aspect

@Component

public class BeforeAdvice{



	@Pointcut("execution(* com.test.erp.test.action.*.*(..))")

	public void rolePoint(){}

	

	@Before("rolePoint()")

	public void beforeAdvice() {

		System.out.println("before advice is executed!");

	}

	

	

}