RSocket 中提供了 4 種交互模型。開除即忘請(qǐng)求和響應(yīng)請(qǐng)求流請(qǐng)求通道（元數(shù)據(jù)推送）Spring（和 Spring Boot）提供 RSocket 集成，可以很容易地使用現(xiàn)有的消息傳遞基礎(chǔ)設(shè)施構(gòu)建 RSocket 服務(wù)器以隱藏原始 RSocket API。   @MessageMapping("hello")    public Mono<Void> hello(Greeting p) {        log.info("received: {} at {}", p, Instant.now());        return Mono.empty();    }    @MessageMapping("greet.{name}")    public Mono<String> greet(@DestinationVariable String name, @Payload Greeting p) {        log.info("received: {}, {} at {}", name, p, Instant.now());        return Mono.just("Hello " + name + ", " + p.getMessage() + " at " + Instant.now());    }    @MessageMapping("greet-stream")    public Flux<String> greetStream(@Payload Greeting p) {        log.info("received:  {} at {}", p, Instant.now());        return Flux.interval(Duration.ofSeconds(1))                .map(i -> "Hello #" + i + "," + p.getMessage() + " at " + Instant.now());    }在客戶端，提供了RescoketRequester與服務(wù)器握手的功能。    @GetMapping("hello")    Mono<Void> hello() {        return this.requester.route("hello").data(new Greeting("Welcome to Rsocket")).send();    }    @GetMapping("name/{name}")    Mono<String> greet(@PathVariable String name) {        return this.requester.route("greet." + name).data(new Greeting("Welcome to Rsocket")).retrieveMono(String.class);    }    @GetMapping(value = "stream", produces = MediaType.TEXT_EVENT_STREAM_VALUE)    Flux<String> greetStream() {        return this.requester.route("greet-stream").data(new Greeting("Welcome to Rsocket"))                .retrieveFlux(String.class)                .doOnNext(msg -> log.info("received messages::" + msg));    }但是如何使用請(qǐng)求通道和 Spring 方式的元數(shù)據(jù)推送模型（使用消息傳遞基礎(chǔ)結(jié)構(gòu)）？示例代碼在Github上。更新：添加了requestChannel示例。更新：SETUP和METADATA_PUSH可以由@ConnectMapping. Spring Security RSocket 可以保護(hù)SETUP和REQUEST。