java - Spring 4 中有多个@ComponentScan？

Question

我正在使用带有 Java 注释的 Spring 4.16，我想做类似的事情:

@Configuration
@ComponentScan(basePackages = "com.example.business", includeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = ServiceComponent.class))
@ComponentScan(basePackages = "com.example.business.framework")
public class ServicesBaseConfiguration {

}

很明显，它无法编译。但我希望你明白我的意思。我想拥有多个具有不同包和过滤器的 ComponentScan。

我不能统一两个 ComponentsScan，因为它不会从框架创建任何组件，而是创建那些用 ServiceComponent 注释的组件，对吗？

你知道我怎么解决这个问题吗？提前致谢

Answer 1

创建两个空的内部类并在它们上面放置@ComponentScan注解:

@Configuration
@Import({ServicesBaseConfiguration.Filtered.class, ServicesBaseConfiguration.Unfiltered.class})
public class ServicesBaseConfiguration {

    @Configuration
    @ComponentScan(basePackages = "com.example.business", includeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = ServiceComponent.class))
    public static class Filtered {}

    @Configuration
    @ComponentScan(basePackages = "com.example.business.framework")
    public static class Unfiltered {}

}

这应该行得通