spring webflux 动态注册controller

spring webflux 动态注册controller的方法比较多，以下简单说明下

函数式模式

• 参考玩法

官方比较推荐的

@Bean
public RouterFunction<ServerResponse> dynamicRoutes(ApplicationContext ctx) {
    RouterFunctions.Builder builder = RouterFunctions.route();

    // 从配置/数据库读取路由定义
    for (RouteDef def : fetchRouteDefinitions()) {
        builder = builder.route(
            RequestPredicates.path(def.getPath()).and(RequestPredicates.method(def.getMethod())),
            request -> ServerResponse.ok().bodyValue(def.getHandler().handle(request))
        );
    }

    return builder.build();
}

RequestMappingHandlerMapping 模式

尽管与webmvc 有一些差异，但是内部机制还是一样的，RequestMappingHandlerMapping 依然还是可以使用的

@Configuration
public class DynamicControllerConfig {

    @Autowired
    private RequestMappingHandlerMapping handlerMapping;

    @Autowired
    private MyHandler myHandler;

    @PostConstruct
    public void register() throws NoSuchMethodException {
        RequestMappingInfo info = RequestMappingInfo
            .paths("/dynamic")
            .methods(RequestMethod.GET)
            .build();

        Method method = MyHandler.class.getMethod("handle", ServerRequest.class);
        handlerMapping.registerMapping(info, myHandler, method);
    }
}

参考资料

https://docs.spring.io/spring-framework/reference/web/webflux/controller/ann-requestmapping.html