java - 如何在游戏框架中的 Action 中获得被叫 Action 的响应

我在不同的控制器ActionA和ActionB中有两个动作
我在ActionA中调用ActionB，我想在ActionA中获得它的（ActionB）响应吗？我怎么能做到这一点，请帮助这是我的代码

class ControllerA extends Controller{

def ActionA = Action { implicit request =>
    var jsonRequest = request.body.asJson.get
    val uuid = (jsonRequest \ "uuid").as[String]
    log.info("in ActionA" + uuid)
    val controllerB= new ControllerB
    val actionB=controllerB.ActionB.apply(request)
    //here i want to get the response of ActionB and return this response as the response of ActionA whether its OK or InternelServerError
    Ok("i want to show the response of ActionB")
    }
}

class ControllerB extends Controller{
def ActionB = Action { implicit request =>
    var jsonRequest = request.body.asJson.get
    val uuid = (jsonRequest \ "uuid").as[String]
    log.info("in ActionB " + uuid)
    try {
      Ok("i am ActionB with id {}"+uuid)
    } catch {
      case e: Exception =>
        log.error("Exception ", e)
        val status = Http.Status.INTERNAL_SERVER_ERROR
        InternalServerError(Json.obj("status" -> status, "msg" -> ServerResponseMessages.INTERNAL_SERVER_ERROR))
    }
  }
}

请帮忙

最佳答案

在播放2.2和2.3中，控制器通常是object而不是class，因此我将您的控制器更改为对象。在较新版本的播放控制器中，是使用Guice框架注入的类。

由于动作的调用是异步的，因此您需要将ActionA更改为Action.async。以下是我所做的更改：

object ControllerA extends Controller{

  def ActionA = Action.async { implicit request =>
    var jsonRequest = request.body.asJson.get
    val uuid = (jsonRequest \ "uuid").as[String]
    log.info("in ActionA" + uuid)
    ControllerB.ActionB(request)
  }
}

object ControllerB extends Controller{
  def ActionB = Action { implicit request =>
    var jsonRequest = request.body.asJson.get
    val uuid = (jsonRequest \ "uuid").as[String]
    log.info("in ActionB " + uuid)
    try {
      Ok("i am ActionB with id {}"+uuid)
    } catch {
      case e: Exception =>
        log.error("Exception ", e)
        val status = Http.Status.INTERNAL_SERVER_ERROR
        InternalServerError(Json.obj("status" -> status, "msg" -> ServerResponseMessages.INTERNAL_SERVER_ERROR))
    }
  }
}

正如前面的答案所暗示的，与直接共享控制器代码相比，在位于控制器下方的服务层中共享控制器代码更为有利。给定您的简单示例，但似乎可以做您正在做的事情。