Java 下拖配置TCP保持活动参数

我使用Undertow作为Java应用程序的服务器，我尝试使用 Undertow.Builder的setSocketOptions（）方法（请参见下面的代码）

为了进行测试，我发送了一条消息，然后保持连接处于活动状态，而不发送任何内容，以便可以观察到TCP KeepAlive。 但不知何故，这些字段并没有被设置，因为我无法在tcpdump捕获中看到任何关于设置参数的保持活动的数据包

底拖是否支持这些参数的设置？ 如果是，这是正确的方式来配置TCP Keep Alive参数，还是我遗漏了什么

@Bean
public ServletWebServerFactory undertowFactory() {
   UndertowServletWebServerFactory undertowFactory = new UndertowServletWebServerFactory();

   // listen to http and enable http2
   undertowFactory.addBuilderCustomizers((Undertow.Builder builder) -> {
        builder.setWorkerThreads(maxWorkerThreads);
        builder.addHttpListener(httpPort, "0.0.0.0");
        builder.setServerOption(UndertowOptions.ENABLE_HTTP2, isHTTP2Enabled);
        builder.setServerOption(UndertowOptions.IDLE_TIMEOUT, 3600000);
        builder.setSocketOption(Options.KEEP_ALIVE, true);
        builder.setSocketOption(Option.simple(StandardSocketOptions.class, "SO_KEEPALIVE", Boolean.class), true);
        builder.setSocketOption(Option.simple(ExtendedSocketOptions.class, "TCP_KEEPINTERVAL", Integer.class), 10);
        builder.setSocketOption(Option.simple(ExtendedSocketOptions.class, "TCP_KEEPIDLE", Integer.class), 10);
        builder.setSocketOption(Option.simple(ExtendedSocketOptions.class, "TCP_KEEPCNT", Integer.class), 10);
   });
   
   logger.info("Undertow Max Worker Threads: " + maxWorkerThreads);
   
   undertowFactory.addDeploymentInfoCustomizers(deploymentInfo -> {
                  deploymentInfo.addInitialHandlerChainWrapper(gracefulShutdown());
   });
   // redirect http to https
   if (redirectHTTP == true) {
          undertowFactory.addDeploymentInfoCustomizers(deploymentInfo -> {
           deploymentInfo.addSecurityConstraint(new SecurityConstraint()
                         .addWebResourceCollection(new WebResourceCollection().addUrlPattern("/*"))
                         .setTransportGuaranteeType(TransportGuaranteeType.CONFIDENTIAL)
                         .setEmptyRoleSemantic(SecurityInfo.EmptyRoleSemantic.PERMIT))
                         .setConfidentialPortManager(exchange -> httpsPort);
          });
   }

   return undertowFactory;
}