Spring错误——Spring AOP——org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException

  • 背景:学习切面,测试前置通知功能,xml配置如下
    <?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd" > <bean id="ikAspect" class="com.jing.spring.aop.IKAspect"></bean>
    <bean id="ikAspectBiz" class="com.jing.spring.aop.IKAspectBiz"></bean> <aop:config>
    <aop:aspect id="ikAspectAop" ref="ikAspect">
    <aop:pointcut id="ikPoint" expression="execution(* com.jing.spring.aop.IKAspectBiz.*(..))"></aop:pointcut>
    <aop:before method="aspectBefore" pointcut-ref="ikPoint"></aop:before>
    </aop:aspect>
    </aop:config>
    </beans>
  • 报错:org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException
    Caused by: java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
    at java.lang.Class.getConstructor0(Class.java:3075)
    at java.lang.Class.getDeclaredConstructor(Class.java:2178)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:80)
    ... 66 more
    Caused by: java.lang.ClassNotFoundException: org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 71 more
  • 原因:Spring AOP 虽然有自己的AOP功能,但是它是依赖AspectJ来实现的。使用maven搭建的项目pom.xml中,没有引入aspectjweaver包。
  • 解决办法:在pom.xml中引入aspectjweaver包。
     <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
    <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.9.2</version>
    </dependency>
  • 测试成功
    Spring错误——Spring AOP——org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException
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