Spring忽略@primary注释

Question

@Configuration(proxyBeanMethods = false)
public class RedisHttpSessionConfiguration extends SpringHttpSessionConfiguration
        implements BeanClassLoaderAware, EmbeddedValueResolverAware, ImportAware {
    // ...

    @Bean
    public RedisIndexedSessionRepository sessionRepository() {
        // constructs and returns sessionRepository
    }

    // ...

    @EnableScheduling
    @Configuration(proxyBeanMethods = false)
    class SessionCleanupConfiguration implements SchedulingConfigurer {

        private final RedisIndexedSessionRepository sessionRepository;

        SessionCleanupConfiguration(RedisIndexedSessionRepository sessionRepository) {
            this.sessionRepository = sessionRepository;
        }

        // ...
    }
}

@EnableRedisHttpSession
@Configuration
public class CustomRedisHttpSessionConfiguration extends RedisHttpSessionConfiguration {
    // ...

    @Bean
    @Primary
    public RedisIndexedSessionRepository customSessionRepository() {
        RedisIndexedSessionRepository sessionRepository = super.sessionRepository();
        // custom config code
        return safeRepository;
    }

    // ...
}

有什么想法为什么@primary在这里没有被考虑在内吗？

Answer 1

只需向配置中添加一个属性：

spring.main.allow-bean-definition-overriding=true

编辑

或者试试这样的方法：

@EnableRedisHttpSession
@Configuration
public class CustomRedisHttpSessionConfiguration extends 
    RedisHttpSessionConfiguration implements BeanPostProcessor {
    // ...

    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (bean.getClass() == RedisIndexedSessionRepository.class) {
            RedisIndexedSessionRepository sessionRepository = (RedisIndexedSessionRepository) bean;
            // custom config code
        }
        return bean;
    }

    // ...
}