java - Spring Boot使用bean内部配置

Question

@Configuration
@AutoConfigureOrder()
@ComponentScan("scanPath")
public class AutoConfiguration {    

    @Autowired
    private Factory   factory;

    @Bean("factory")
    @ConditionalOnProperty(prefix = "application.middleware", name = "enabled", havingValue = "true")
    public Factory getFactory() {
        return new Factory();
    }

    @Bean("binding")
    @DependsOn("factory")
    public Binding getMarketingDataSource() {
        return factory.getInstance("bindingName");
    }
}    

我愿意: 1. 初始化bean工厂(如果没有找到值可能为null) 2. Autowiring 并通过bean绑定(bind)使用

但现在我遇到了异常(exception)

Caused by: org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'factory': Requested bean is currently in creation: Is there an unresolvable circular reference?

所以我想要的是在绑定(bind)中使用工厂，如何制作呢？谢谢!

Answer 1

使用getFactory()获取Bean(并删除@Autowired):

public Binding getMarketingDataSource() {
    return getFactory().getInstance("bindingName");