如果配置已加载,如何知道

How to get know, if the configuration is loaded

我正在使用 akka http websocket client 并希望让客户端保持活动状态。
在 Automatic keep-alive Ping support 部分说,将配置放入 application.conf 如下:

akka.http.client.websocket.periodic-keep-alive-mode = pong

我做过:

akka.http {
  websocket {
    # periodic keep alive may be implemented using by sending Ping frames
    # upon which the other side is expected to reply with a Pong frame,
    # or by sending a Pong frame, which serves as unidirectional heartbeat.
    # Valid values:
    #   ping - default, for bi-directional ping/pong keep-alive heartbeating
    #   pong - for uni-directional pong keep-alive heartbeating
    #
    # See https://tools.ietf.org/html/rfc6455#section-5.5.2
    # and https://tools.ietf.org/html/rfc6455#section-5.5.3 for more information
    periodic-keep-alive-mode = ping

    # Interval for sending periodic keep-alives
    # The frame sent will be the onne configured in akka.http.server.websocket.periodic-keep-alive-mode
    # `infinite` by default, or a duration that is the max idle interval after which an keep-alive frame should be sent
    periodic-keep-alive-max-idle = infinite
  }
} 

如何判断配置是否被采用?

我不确定我是否真的理解你的问题,但你可以在加载 actor 系统时通过将 akka.log-config-on-start 设置为 on 来显示完整的配置(包括覆盖等)。

Akka Docs on Logging the Configuration

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