我正在嘗試使用春季webflux的上下文功能來攜帶一個簡單的變量。我有一個WebFilter設置了一個具有此類變量的上下文，我嘗試在通量/流的不同階段在我的控制器中使用它。在某些時候，我在調用 Flux 類的方法“parallel（）”后丟失了它。過濾器：public class TestFilter implements WebFilter {    private Logger LOG = LoggerFactory.getLogger(TestFilter.class);    @Override    public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {        return chain.filter(exchange)            .doOnEach(voidSignal -> System.out.println("filter:"+voidSignal.getContext().getOrEmpty("blob"))).subscriberContext(Context.of("blob", "kapoue"));    }}控制器：@RestController@RequestMapping(TestControllerWebFlux.ROOT)public class TestControllerWebFlux {    static final String ROOT = "/flux";    static final String TEST = "/test";    private WebClient webClient = WebClient.create();    @GetMapping(            value = TEST,            produces = {MediaType.APPLICATION_JSON_VALUE})    public Mono<String> test() {        System.out.println("controller1:"+Thread.currentThread());        Flux<String> call = webClient.get().uri("http://localhost:" + 8080 + ROOT + "/test2").retrieve().bodyToFlux(Result.class).map(Result::getValue);        return call.map(s -> s+"0")            .doOnEach(stringSignal -> System.out.println("controller2:"+stringSignal.getContext().getOrEmpty("blob")))            .parallel()            .doOnEach(stringSignal -> System.out.println("controller3:"+stringSignal.getContext().getOrEmpty("blob")))            .map(s -> s+"0")            .doOnEach(stringSignal -> System.out.println("controller4:"+stringSignal.getContext().getOrEmpty("blob")))            .reduce((s, s2) -> s+s2)            .doOnEach(stringSignal -> System.out.println("controller5:"+stringSignal.getContext().getOrEmpty("blob")))            .map(s -> {                System.out.println("controller6:"+Thread.currentThread());                return s;            });    }