尝试使用Java Spring AOP时抛出“ org.springframework.beans”

Question

我试图在我的IDE上获得一个简单的AOP示例。

下面是我的代码。

我在下面收到此错误。

请帮助我了解原因。

org.springframework.beans.factory.BeanCreationException：创建名称为“ org.springframework.context.event.internalEventListenerProcessor”的bean时出错：bean的初始化失败；嵌套的异常是java.lang.IllegalArgumentException：在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:564）的切入点中:: 02正式未绑定的错误.jar：4.3.18.RELEASE]

AotSpringMain

@SpringBootApplication

public class AotSpringMain {

    public static void main(String[] args) {

        ApplicationContext ctx = SpringApplication.run(AotSpringMain.class, args);

        HumanFactory humanFactory = (HumanFactory)ctx.getBean("humanFactory");

        System.out.println(humanFactory.getFemale().getName());

        humanFactory.getFemale().setName("aaa");

        System.out.println(humanFactory.getFemale().getName());

    }

}

记录方面

@Aspect

@Component

public class LoggingAspect {

    @Before("execution(* com.my_aop_example.HumanFactory.*(..))")

    public void logBefore(JoinPoint joinPoint, Object result) {

        System.out.println("Log before start");

        System.out.println("Name: " + joinPoint.getSignature().getName());

        System.out.println("Log before end");

    }

}

人类工厂

package com.my_aop_example;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Qualifier;

import org.springframework.stereotype.Service;

@Service

public class HumanFactory {

    @Autowired

    @Qualifier("Male")

    Human Male;

    @Autowired

    @Qualifier("Female")

    Human female;

    public Human getMale() {

        return Male;

    }

    public Human getFemale() {

        return female;

    }

Answer 1

没有参数 Object result  @Before("execution(* com.my_aop_example.HumanFactory.*(..))")  public void logBefore(JoinPoint joinPoint) {    System.out.println("Log before start");    System.out.println("Name: " + joinPoint.getSignature().getName());    System.out.println("Log before end");  }