spring 2.x aspect 配置 introduction 的问题

Question

补充，
 @DeclareParents(value = "InnerInterfaceImpl", defaultImpl = IntroductionImpl.class)
    IntroductionInterface iface;上面的代码就可以匹配 InnerInterfaceImpl

Answer 1

"this(inf)" 的含义：
实现了IntroductionInterface接口的代理对象的任意连接点。

Answer 2

请问这个inf 的赋值是谁给的？

Answer 3

通过将 this付给 IntroductionInterface inf, 可以在before通知中调用 inf的一些操作。

Answer 4

good,
@DeclareParents(value = "InnerInterface.*", defaultImpl = IntroductionImpl.class)这句如何定义目标为 所有 InnerInterface的实现类？

Answer 5

@DeclareParents(value = "InnerInterface.*＋", defaultImpl = IntroductionImpl.class) 你少个＋号

Answer 6

 <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/aop/spring-tx.xsd">    <!--<aop:aspectj-autoproxy/>-->    <aop:config>
        <aop:pointcut id="allSetMethodWithString" expression="execution(public * dragon.spring.hello..set*(java.lang.String,..))"/>
        <aop:pointcut id="allSetMethod" expression="execution(public * dragon.spring.hello.bean..set*(..))"/>
        
        <aop:aspect id="logger" ref="logAdvice">
            <aop:before method="welcome" pointcut-ref="allSetMethod"/>
            <aop:after-returning method="afterReturn" pointcut-ref="allSetMethod" returning="obj" arg-names="obj"/>
            <aop:after method="finallyAdvice" pointcut-ref="allSetMethod" arg-names="jp"/>
            <aop:after-throwing method="afterThrowing" pointcut-ref="allSetMethod" throwing="e"/>
            <aop:around method="around" pointcut-ref="allSetMethod"/>            <aop:declare-parents types-matching="dragon.spring.hello.bean.event.inner.InnerInterface.*+"
                                 implement-interface="dragon.spring.hello.aop.introduct.IntroductionInterface"
                                 default-impl="dragon.spring.hello.aop.introduct.IntroductionImpl"/>            
        </aop:aspect>
        
    </aop:config>    <bean id="logAdvice" class="dragon.spring.hello.aop.advice.Logger" />
    <!--<bean id="introductAdvice" class="dragon.spring.hello.aop.introduct.IntroductionAdvice"/>-->
    <bean id="innerBean" class="dragon.spring.hello.bean.event.inner.InnerBean"/>
</beans>
        IntroductionInterface inf= (IntroductionInterface) context.getBean("innerBean");
        inf.log();
java.lang.ClassCastException
at dragon.spring.hello.InitSpring.main(InitSpring.java:45)

Answer 7

把它改成 IntroductionInterface+ 就ok了，那 .*+ 是什么意思呢？
 <aop:declare-parents types-matching="dragon.spring.hello.bean.event.inner.InnerInterface+"
                                 implement-interface="dragon.spring.hello.aop.introduct.IntroductionInterface"
                                 default-impl="dragon.spring.hello.aop.introduct.IntroductionImpl"/>