SpringBoot如何根据目录结构生成API接口前缀

public class AutoPrefixUrlMapping extends RequestMappingHandlerMapping {
    @Value("${api-package}")
    private String apiPackagePath;
    @Override
    protected RequestMappingInfo getMappingForMethod(Method method, Class<?> handlerType) {
        RequestMappingInfo mappingForMethod = super.getMappingForMethod(method, handlerType);
        String prefix = getPrefix(handlerType);
        if (mappingForMethod!=null){
           return RequestMappingInfo.paths(prefix).build().combine(mappingForMethod);
        }
        return mappingForMethod;
    }
    private String getPrefix(Class<?> handlerType){
        String packageName = handlerType.getPackage().getName();
        String doPath = packageName.replaceAll(this.apiPackagePath, "");
        return doPath.replace('.', '/');
    }
}

@Component
public class AutoPrefixConfiguration implements WebMvcRegistrations {
    @Override
    public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
        return new AutoPrefixUrlMapping();
    }
}

@RestController()
@RequestMapping("/banner")
public class BannerController {
    @GetMapping("/test")
    public String test() {
        return "你好 hello";
    }
}