在Spring WebFlux webclient中设置超时

Question

我正在使用Spring Webflux WebClient从我的Spring Boot应用程序进行REST调用。每次都在30秒内暂停。

下面是我在Spring WebFulx的WebClient中尝试设置套接字超时的一些代码。

 - ReactorClientHttpConnector connector = new ReactorClientHttpConnector(options -> options
           .option(ChannelOption.SO_TIMEOUT, 600000).option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 600000));
 - ReactorClientHttpConnector connector = new ReactorClientHttpConnector(
           options -> options.afterChannelInit(chan -> {
                chan.pipeline().addLast(new ReadTimeoutHandler(600000));
            }));
 - ReactorClientHttpConnector connector1 = new ReactorClientHttpConnector(options -> options
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 600000).afterNettyContextInit(ctx -> {
                ctx.addHandlerLast(new ReadTimeoutHandler(600000, TimeUnit.MILLISECONDS));
            }));

webClient.get().uri(builder -> builder.path("/result/{name}/sets")
                    .queryParam("q", "kind:RECORDS")
                    .queryParam("offset", offset)
                    .queryParam("limit", RECORD_COUNT_LIMIT)
                    .build(name))
            .header(HttpHeaders.AUTHORIZATION, accessToken)
            .exchange().timeout(Duration.ofMillis(600000))
            .flatMap(response -> handleResponse(response, name, offset));

我使用的是org.springframework.boot:spring-boot-gradle-plugin:2.0.0.m7，它们之间具有org.springframework:spring-webflux:5.0.2.release的特性。

请在这里提出建议，如果我在这里做错了什么，请让我知道。

Answer 1

我试过复制这个问题，但做不到。使用反应器-netty 0.7.5.释放。

我不确定你说的是哪个超时。

连接超时可以使用channeloption.connect_timeout_millis进行配置。在“Connecting”日志消息和实际错误之间有10秒钟的时间：

WebClient webClient = WebClient.builder()
    .clientConnector(new ReactorClientHttpConnector(options -> options
        .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)))
    .build();

webClient.get().uri("http://10.0.0.1/resource").exchange()
    .doOnSubscribe(subscription -> logger.info("connecting"))
    .then()
    .doOnError(err -> logger.severe(err.getMessage()))
    .block();

ReactorClientHttpConnector connector = new ReactorClientHttpConnector(options ->
        options.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10)
                .onChannelInit(channel -> {
                        channel.pipeline().addLast(new ReadTimeoutHandler(10))
                                .addLast(new WriteTimeoutHandler(10));
                return true;
        }).build());

TcpClient tcpClient = TcpClient.create()
                 .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 1000)
                 .doOnConnected(connection ->
                         connection.addHandlerLast(new ReadTimeoutHandler(10))
                                   .addHandlerLast(new WriteTimeoutHandler(10)));
WebClient webClient = WebClient.builder()
    .clientConnector(new ReactorClientHttpConnector(HttpClient.from(tcpClient)))
    .build();

也许将以下内容添加到应用程序.properties将提供HTTP级别发生的更多信息：

logging.level.reactor.ipc.netty.channel.ContextHandler=debug
logging.level.reactor.ipc.netty.http.client.HttpClient=debug