Spring Boot应用引用Jar中@Bean方法带@Autowired启动报错的解决办法

方案1：自定义BeanDefinitionRegistryPostProcessor清除注解 #

Spring允许在Bean定义注册阶段修改元数据，我们可以实现BeanDefinitionRegistryPostProcessor，定位到第三方配置类中存在问题的@Bean方法，移除其@Autowired注解：

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor;
import org.springframework.beans.factory.support.ManagedMethod;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.util.Map;

@Component
public class FixThirdPartyConfigProcessor implements BeanDefinitionRegistryPostProcessor {

    @Override
    public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) throws BeansException {
        // 遍历所有BeanDefinition，找到第三方的Test配置类
        for (String beanName : registry.getBeanDefinitionNames()) {
            BeanDefinition beanDef = registry.getBeanDefinition(beanName);
            if ("com.example.demo.Test".equals(beanDef.getBeanClassName())) {
                // 获取配置类中所有@Bean方法的元数据
                Map<String, BeanDefinitionHolder> beanMethods = (Map<String, BeanDefinitionHolder>) 
                    beanDef.getAttribute("org.springframework.context.annotation.ConfigurationClassPostProcessor.configurationClassBeanMethods");
                if (beanMethods != null) {
                    BeanDefinitionHolder someBeanHolder = beanMethods.get("someBean");
                    if (someBeanHolder != null) {
                        BeanDefinition someBeanDef = someBeanHolder.getBeanDefinition();
                        // 获取目标方法对象
                        ManagedMethod managedMethod = (ManagedMethod) someBeanDef.getAttribute("org.springframework.beans.factory.support.ManagedMethod");
                        Method method = managedMethod.getMethod();
                        // 清除方法上的@Autowired注解
                        AnnotationUtils.clearAnnotation(method, org.springframework.beans.factory.annotation.Autowired.class);
                    }
                }
                break;
            }
        }
    }

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        // 无需额外操作
    }
}

方案2：降级spring-beans版本到6.1.4 #

如果项目兼容性允许，直接调整依赖版本跳过Spring新增的校验逻辑：

• Maven项目（pom.xml）：

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-beans</artifactId>
    <version>6.1.4</version>
</dependency>

• Gradle项目（build.gradle）：

implementation 'org.springframework:spring-beans:6.1.4'

注意：调整版本前要确认Spring Boot或其他Spring组件与该版本的兼容性，避免出现依赖冲突。

方案3：排除第三方配置类，自行重写配置逻辑 #

先阻止Spring加载第三方的问题配置类，再自己实现相同的Bean创建逻辑：

步骤1：排除第三方配置类 #

在项目启动类上添加排除规则：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.FilterType;

@SpringBootApplication
@ComponentScan(excludeFilters = @ComponentScan.Filter(
        type = FilterType.ASSIGNABLE_TYPE, 
        classes = com.example.demo.Test.class
))
public class YourApplication {
    public static void main(String[] args) {
        SpringApplication.run(YourApplication.class, args);
    }
}

步骤2：自行编写配置类 #

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class CustomTestConfig {

    // @Bean方法的参数默认会自动注入，无需添加@Autowired
    @Bean
    SomeBean someBean(A a) {
        return new SomeBean("s");
    }
}

内容的提问来源于stack exchange，提问作者Vpal