彈簧設置參數到AOP方法

all！我無法解決AOP Spring的問題。我有一個類彈簧設置參數到AOP方法

public class Minstrel { 
public void singBefore(Knight knight) { 
    System.out 
      .println("Fa la la; Sir" + knight.getName() + " is so brave!"); 
} 

public void singAfter(Knight knight) { 
    System.out.println("Tee-hee-he; Sir" + knight.getName() 
      + " did embark on a quest!"); 
} 
}

該類的方法將對Knight類中的embarkOnQuest（）方法做出反應。如何將Knight對象設置爲參數singBefore（騎士騎士）和singAfter（騎士騎士）？它必須在XML文件中？ XML文件：

<bean id="grail" class="au.adelaide.knight_example.grail.HolyGrail" /> 

<bean id="quest" class="au.adelaide.knight_example.quest.HolyGrailQuest"> 
    <property name="grail" ref="grail" /> 
</bean> 

<bean id="knight" class="au.adelaide.knight_example.knight.RoundTableKnight"> 
    <constructor-arg value="Arthur" /> 
    <property name="quest" ref="quest" /> 
</bean> 

<bean id="minstrel" class="au.adelaide.knight_example.minstrel.Minstrel" /> 
<aop:config> 
    <aop:aspect ref="minstrel"> 
     <aop:pointcut id="questPointcut" 
      expression="execution(* *.embarkOnQuest(..))" /> 
     <aop:before method="singBefore" pointcut-ref="questPointcut" arg-names="knight" /> 
     <aop:after-returning method="singAfter" 
      pointcut-ref="questPointcut" arg-names="knight" /> 
    </aop:aspect> 
</aop:config>

堆棧跟蹤是：

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'helloWorld' defined in class path resource [Beans.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.aop.aspectj.AspectJPointcutAdvisor]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: knight [Xlint:invalidAbsoluteTypeName] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:454) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) 
at au.adelaide.main.SpringInAction.main(SpringInAction.java:12) 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.aop.aspectj.AspectJPointcutAdvisor]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: knight [Xlint:invalidAbsoluteTypeName] 
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:288) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1045) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:949) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198) 
at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:86) 
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:101) 
at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:103) 
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:276) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:890) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:862) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:448) 
... 10 more 
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.aop.aspectj.AspectJPointcutAdvisor]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: knight [Xlint:invalidAbsoluteTypeName] 
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163) 
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:121) 
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:280) 
... 25 more 
Caused by: java.lang.IllegalArgumentException: warning no match for this type name: knight [Xlint:invalidAbsoluteTypeName] 
at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:301) 
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:208) 
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:194) 
at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:183) 
at org.springframework.aop.aspectj.AspectJExpressionPointcut.getMethodMatcher(AspectJExpressionPointcut.java:169) 
at org.springframework.aop.aspectj.AbstractAspectJAdvice.buildSafePointcut(AbstractAspectJAdvice.java:187) 
at org.springframework.aop.aspectj.AspectJPointcutAdvisor.<init>(AspectJPointcutAdvisor.java:51) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) 
at java.lang.reflect.Constructor.newInstance(Unknown Source) 
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148) 
... 27 more

謝謝您的回答。

來源

2013-07-25 Cat H

阿騎士......你在行動閱讀春天？ :) – micha

是的，但這一刻並不像我想要的那樣描述。 –

執行代碼時會發生什麼？你會得到一個異常（如果是的話：請添加堆棧跟蹤） – micha

試試這個 -

... 
<bean id="minstrel" class="com.springinaction.chapter01.knight.Minstrel"/> 
    <aop:config> 
     <aop:aspect ref="minstrel"> 
     <aop:pointcut id="questPointcut" expression="execution(* *.embarkOnQuest(..)) and target(bean)" /> 
     <aop:before method="singBefore" pointcut-ref="questPointcut" arg-names="bean" /> 
     <aop:after-returning method="singAfter" pointcut-ref="questPointcut" arg-names="bean" /> 
     </aop:aspect> 
    </aop:config> 
...

這是類似的 -

public class KnightOfTheRoundTable implements Knight { 
    … 
    private Minstrel minstrel; 
    public void setMinstrel(Minstrel minstrel) { 
     this.minstrel = minstrel; 
    } 
    … 
    public HolyGrail embarkOnQuest() throws QuestFailedException { 
     minstrel.singBefore(this); 
     HolyGrail grail = quest.embark();  
     minstrel.singAfter(this); 

     return grail; 
    } 
}

來源

2013-07-25 22:23:58

哦，謝謝！我做了一件愚蠢的事情。 –

嘗試用

<aop:pointcut id="questPointcut" 
      expression="execution(* *.embarkOnQuest(..)) and this(knight)" />

使用該this poincut標誌在參數綁定形式。

看到http://static.springsource.org/spring/docs/3.2.x/spring-framework-reference/html/aop.html#aop-ataspectj-advice-params-names

來源

2013-07-25 22:16:30

彈簧設置參數到AOP方法

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