Spring aop使用Cglib动态代理时报红，求解决！

Question

我在学习Spring aop动态代理的时候，了解到spring aop对没有实现任何接口的类，使用的是Cglib动态代理，因此我在原有的代码上去掉了接口实现（即注释了被切面类的接口实现），体验Cglib动态代理，以下是我的代码
测试类

package org.home717.test;

import org.home717.service.impl.Impl_UserService;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    @org.junit.Test
    public void Test(){
        ConfigurableApplicationContext ioc = new ClassPathXmlApplicationContext("spring/aop_01.xml");
        System.out.println(ioc.getBean(Impl_UserService.class));
    }
}    

切面类

package org.home717.util;

import org.springframework.stereotype.Component;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

@Component
@Aspect
public class LogUtil {
    @Before("execution(public * org.home717..*.*(..))")
    public void logBefore(){
        System.out.println("[proxy] Before");
    }
    
    @After("execution(public * org.home717..*.*(..))")
    public void logAfter(){
        System.out.println("[proxy] After");
    }
    
    @AfterReturning("execution(public * org.home717..*.*(..))")
    public void logAfterReturning(){
        System.out.println("[proxy] AfterReturning");
    }
    
    @AfterThrowing("execution(public * org.home717..*.*(..))")
    public void logAfterThrowing(){
        System.out.println("[proxy] AfterThrowing");
    }
}

目标类

package org.home717.service.impl;

import org.home717.service.I_UserService;
import org.springframework.stereotype.Service;

@Service
public class Impl_UserService{//implements I_UserService
    public Impl_UserService(){
        super();
    }

    public void get(){
        System.out.println("获取了用户信息!");
    }
}

但是当我使用Junit运行测试类的时候，出现了以下错误

以下是异常信息：

10月 15, 2021 10:26:20 上午 org.springframework.context.support.AbstractApplicationContext refresh
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'impl_UserService' defined in file [E:\Code\CodeCool\eclipse-workspace\SpringAOP_02\target\classes\org\home717\service\impl\Impl_UserService.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.home717.service.impl.Impl_UserService: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.VerifyError-->Stack map does not match the one at exception handler 9
Exception Details:
  Location:
    org/home717/service/impl/Impl_UserService$$EnhancerBySpringCGLIB$$61673c07.<init>()V @9: athrow
  Reason:
    Current frame's flags are not assignable to stack map frame's.
  Current Frame:
    bci: @0
    flags: { flagThisUninit }
    locals: { uninitializedThis }
    stack: { 'java/lang/RuntimeException' }
  Stackmap Frame:
    bci: @9
    flags: { }
    locals: { }
    stack: { 'java/lang/Throwable' }
  Bytecode:
    0000000: 2a59 b701 27b8 0037 b1bf bb00 4b5a 5fb7
    0000010: 004e bf                                
  Exception Handler Table:
    bci [0, 9] => handler: 9
    bci [0, 9] => handler: 9
    bci [0, 9] => handler: 10
  Stackmap Table:
    full_frame(@9,{},{Object[#73]})
    same_locals_1_stack_item_frame(@10,Object[#73])

补充
maven xml

<project xmlns="http://maven.apache.org/POM/4.0.0" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    
    <modelVersion>4.0.0</modelVersion>
    <groupId>home717</groupId>
    <artifactId>SpringAOP_01</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    
    <dependencies>
        <!-- Spring -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.9</version>
            <scope>compile</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.3.9</version>
            <scope>compile</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>5.3.9</version>
            <scope>compile</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.3.9</version>
            <scope>compile</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.3.9</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.0.8.RELEASE</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.9.4</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
            <scope>compile</scope>
        </dependency> 
         
        <!-- commons logging -->
        <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.2</version>
            <scope>compile</scope>
        </dependency>
        
        <!-- Junit -->
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    
</project>

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: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-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">

    <context:component-scan base-package="org.home717" />
    <aop:aspectj-autoproxy />
</beans>

Answer 1

你先试下加上 implements I_UserService 看Junit能不能正常执行，我印象中自定义的Aspect在Junit中无法运行。