我正在尝试编写一个自动配置库，为任何 DataSource . 我已经写了一个子类，我会打电话给你 CustomDataSource 它覆盖了 DataSource .

@Configuration
@ConditionalOnBean(DataSource.class)
@AutoConfigureAfter(DataSourceAutoConfiguration.class)
public class CustomDataSourceAutoConfiguration {

    private final DataSource dataSource;

    public CustomDataSourceAutoConfiguration(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Primary
    @Bean
    public CustomDataSource customDataSource() {
        return new CustomDataSource(dataSource);
    }
}

但我找不到一个方法让我做我想做的事。它将始终导致循环引用和例外：

BeanCurrentlyInCreationException: Error creating bean with name 'customDataSource': Requested bean is currently in creation: Is there an unresolvable circular reference?

有办法吗？