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");
    }
}    

我想：1。initbean工厂（如果找不到值，则可能为null）2。自动连接并由bean绑定使用

但现在我有个例外

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?

所以我想要的是在装订中使用工厂，如何制作？谢谢

Answer 1

在签名中连接工厂，现在Spring发现绑定需要工厂并为您设置：

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

Answer 2

使用getFactory（）获取Bean（并删除@Autowired）：

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