我从未使用过 Spring AOP 并尝试配置我的第一个 bean。似乎我配置正确，但我得到一个找不到bean的异常。

我的方面是——

@Aspect
@Component
public class IdentificationAspect {

    @Before("execution(* ru.sbt.filial.cards.aspect.SomeBean.*(..))")
    public void logBefore(JoinPoint joinPoint) throws Throwable {

        System.out.println("logBefore() is running!");
        System.out.println("hijacked : " + joinPoint.getSignature().getName());
        System.out.println("******");
    }
}

而我的 AOP 没有找到的 bean 是 -

package ru.sbt.filial.cards.aspect;

import org.springframework.stereotype.Component;

@Component
public class SomeBean {

    public void printSmth() {
       System.out.println("!!!!!!!!!!!");
    }

}

我有以下异常 -

Caused by: java.lang.IllegalArgumentException: warning no match for this type name: ru.sbt.filial.cards.aspect.SomeBean [Xlint:invalidAbsoluteTypeName]
                at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:301)
                at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:207)
                at org.springframework.aop.aspectj.AspectJExpressionPointcut.getFallbackPointcutExpression(AspectJExpressionPointcut.java:358)
                at org.springframework.aop.aspectj.AspectJExpressionPointcut.matches(AspectJExpressionPointcut.java:255)
                at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:208)
                at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:262)
                at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:294)
                at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:117)
                at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:87)
                at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:68)
                at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:356)
                at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:319)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:412)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1629)
                at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:162)
                ... 165 more

我有以下 maven 依赖项 -

              <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>3.2.0.RELEASE</version>
              </dependency>
              <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.7.3</version>
              </dependency>
              <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>1.7.3</version>
              </dependency>

而我的spring applicationContext.xml配置是——

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
                         http://www.springframework.org/schema/beans/spring-beans.xsd
                         http://www.springframework.org/schema/mvc
                http://www.springframework.org/schema/mvc/spring-mvc.xsd
                         http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-3.2.xsd
                         http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

<mvc:annotation-driven/>
<aop:aspectj-autoproxy/>

<bean id="someBean" class="ru.sbt.filial.cards.aspect.SomeBean">
</bean>

更新 我添加到我的 Spring 配置行

<context:component-scan base-package="ru.sbt.filial.cards.aspect"/>

但仍然是相同的消息。我还尝试以不同的方式注释 - 如果我不指定 bean，即写 -

@Before("execution(* ru.sbt.filial.cards.aspect.*.*(..))")

改为

@Before("execution(* ru.sbt.filial.cards.aspect.SomeBean.*(..))")

我在加载时没有错误，但没有调用 aop 方法。

我也试过这样注释

@Before("this(ru.sbt.filial.cards.aspect.SomeBean) and execution(* printSmth(..))") 

但结果相同 - 此类型名称不匹配。还有什么想法吗？？

最佳答案

我和你有同样的问题，我已经解决了。我给你两个建议，你可以试试。 请将切面类中的@Before注解修改为以下之一:

@Before("执行(* ru.sbt.filial.cards.aspect.SomeBean.logBefore(..))")

或

@Before("执行(* ru.sbt.filial.cards.aspect.SomeBean..*(..))")

希望对你有帮助。

关于java.lang.IllegalArgumentException : warning no match for this type name: ru. sbt.filial.cards.aspect.SomeBean [Xlint:invalidAbsoluteTypeName]，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21676860/