I';我在学习关于Spring方面编程的JavaBrains教程时遇到以下异常:
我正在关注Javabrains的spring方面编程教程。我在本教程中特别提到:我已将所需的库导入到项目中,并且没有收到IDE的警告,但当我运行代码时,会出现以下异常:I';我在学习关于Spring方面编程的JavaBrains教程时遇到以下异常:,java,exception,spring-aop,Java,Exception,Spring Aop,我正在关注Javabrains的spring方面编程教程。我在本教程中特别提到:我已将所需的库导入到项目中,并且没有收到IDE的警告,但当我运行代码时,会出现以下异常: Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triangle' defined in class path resource [spring.x
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triangle' defined in class path resource [spring.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/tools/PointcutDesignatorHandler
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:452)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at org.koushik.javabrains.AopMain.main(AopMain.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.NoClassDefFoundError: org/aspectj/weaver/tools/PointcutDesignatorHandler
at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getPointcut(ReflectiveAspectJAdvisorFactory.java:145)
at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getAdvisor(ReflectiveAspectJAdvisorFactory.java:130)
at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory$1.doWith(ReflectiveAspectJAdvisorFactory.java:74)
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:473)
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:451)
at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getAdvisors(ReflectiveAspectJAdvisorFactory.java:70)
at org.springframework.aop.aspectj.annotation.BeanFactoryAspectJAdvisorsBuilder.buildAspectJAdvisors(BeanFactoryAspectJAdvisorsBuilder.java:109)
at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.findCandidateAdvisors(AnnotationAwareAspectJAutoProxyCreator.java:86)
at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:107)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:278)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:880)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:852)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:446)
... 15 more
Caused by: java.lang.ClassNotFoundException: org.aspectj.weaver.tools.PointcutDesignatorHandler
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
... 28 more
Process finished with exit code 1
ShapeService类:
package org.koushik.javabrains.service;
import org.koushik.javabrains.model.Circle;
import org.koushik.javabrains.model.Triangle;
public class ShapeService {
private Circle circle;
private Triangle triangle;
public Circle getCircle() {
return circle;
}
public void setCircle(Circle circle) {
this.circle = circle;
}
public Triangle getTriangle() {
return triangle;
}
public void setTriangle(Triangle triangle) {
this.triangle = triangle;
}
}
圆圈类:
package org.koushik.javabrains.model;
public class Circle {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
三角形类:
package org.koushik.javabrains.model;
public class Triangle {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
LoggingAspect类:
package org.koushik.javabrains.aspect;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
@Aspect
public class LoggingAspect {
@Before("execution(public String getName())")
public void loggingAdvice(){
System.out.println("Advice run. Get Method called");
}
}
spring.xml:
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
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-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<aop:aspectj-autoproxy/>
<bean name="triangle" class="org.koushik.javabrains.model.Triangle">
<property name="name" value="triangle"/>
</bean>
<bean name="circle" class="org.koushik.javabrains.model.Circle">
<property name="name" value="circle"/>
</bean>
<bean name="shapeService" class="org.koushik.javabrains.service.ShapeService" autowire="byName"/>
<bean name="loggingAspect" class="org.koushik.javabrains.aspect.LoggingAspect"/>
</beans>
我已经阅读了教程页面上的评论,我尝试过使用不同的罐子,但没有一个能起作用。我总是以同样的例外结束
原因:java.lang.NoClassDefFoundError:org/aspectj/weaver/tools/PointcutDesignatorHandler
必须添加到类路径中。具体操作方法取决于您的IDE。如果使用maven,请添加此版本或您需要的任何版本:
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.6</version>
</dependency>
org.aspectj
aspectjweaver
1.8.6
您的POM文件中有aspectjweaver
依赖项吗?我没有使用maven,但是是的,我在类路径中缺少了aspectjweaver。谢谢,是的,我完全忘记了将aspecjweaver.jar添加到classpaht中。现在它正在运行:)
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.6</version>
</dependency>