场景：

spring aop使用过程遇到的异常信息的解决过程记录

问题描述

问题代码如下：

@Configuration
public class LogConfig {

    @Bean
    public JdkRegexpMethodPointcut jdkRegexpMethodPointcut() {
        JdkRegexpMethodPointcut pointcut = new JdkRegexpMethodPointcut();
        pointcut.setPattern("org.example.dao.*");
        return pointcut;
    }

    @Bean
    public LogAdvice logAdvice() {
        return new LogAdvice();
    }

    @Bean
    public DefaultPointcutAdvisor pointcutAdvisor() {
        DefaultPointcutAdvisor pointcutAdvisor = new DefaultPointcutAdvisor(jdkRegexpMethodPointcut(), logAdvice());
        return pointcutAdvisor;
    }

    @Bean
    public BeanNameAutoProxyCreator autoProxyCreator() {
        BeanNameAutoProxyCreator beanNameAutoProxyCreator = new BeanNameAutoProxyCreator();
        beanNameAutoProxyCreator.setBeanNames("*");
        beanNameAutoProxyCreator.setInterceptorNames("pointcutAdvisor");
        return beanNameAutoProxyCreator;
    }
}

异常日志信息：

org.springframework.context.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker postProcessAfterInitialization
信息: Bean 'logConfig' of type [org.example.aop.LogConfig$$EnhancerBySpringCGLIB$$942bab5f] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)

原因分析：

PostProcessor依赖bean。bean的创建过程不受PostProcessor影响。spring检测到后打印该日志。

解决方案：

将PostProcessor作为一个独立的类并使用@Component注解注册为bean。

代码如下：

// MyAutoProxyCreator.java
@Component
public class MyAutoProxyCreator extends BeanNameAutoProxyCreator {

    @PostConstruct
    private void init() {
        super.setBeanNames("*");
        super.setInterceptorNames("pointcutAdvisor");
    }
}

// LogConfig.java
@Configuration
public class LogConfig {

    @Bean
    public JdkRegexpMethodPointcut jdkRegexpMethodPointcut() {
        JdkRegexpMethodPointcut pointcut = new JdkRegexpMethodPointcut();
        pointcut.setPattern("org.example.dao.*");
        return pointcut;
    }

    @Bean
    public LogAdvice logAdvice() {
        return new LogAdvice();
    }

    @Bean
    public DefaultPointcutAdvisor pointcutAdvisor() {
        DefaultPointcutAdvisor pointcutAdvisor = new DefaultPointcutAdvisor(jdkRegexpMethodPointcut(), logAdvice());
        return pointcutAdvisor;
    }
}