为什么案例对象可序列化而案例类不是？
我正在使用这个示例http://scala.sygneca.com/code/remoteactors来学习远程演员如何在Scala中工作（2.8.0）。特别是我稍微修改了演员发送的消息如何定义如下：
sealed trait Event extends Serializable
case object Ping extends Event
case object Pong extends Event
case object Quit extends Event
sealed trait Event extends Serializable
case class Ping extends Event
case class Pong extends Event
case class Quit extends Event
scala.actors.remote.DelegateActor@148cc8c: caught java.io.NotSerializableException: scalachat.remote.Ping$
java.io.NotSerializableException: scalachat.remote.Ping$
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at scala.actors.remote.JavaSerializer.serialize(JavaSerializer.scala:46)
at scala.actors.remote.NetKernel.namedSend(NetKernel.scala:38)
at scala.actors.remote.NetKernel.forward(NetKernel.scala:71)
at scala.actors.remote.DelegateActor$$anonfun$act$1$$anonfun$apply$1.apply(Proxy.scala:182)
at scala.actors.remote.DelegateActor$$anonfun$act$1$$anonfun$apply$1.apply(Proxy.scala:123)
at scala.actors.ReactorTask.run(ReactorTask.scala:34)
at scala.actors.ReactorTask.compute(ReactorTask.scala:66)
at scala.concurrent.forkjoin.RecursiveAction.exec(RecursiveAction.java:147)
at scala.concurrent.forkjoin.ForkJoinTask.quietlyExec(ForkJoinTask.java:422)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.mainLoop(ForkJoinWorkerThread.java:340)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:325)
public class scalachat.remote.Ping extends java.lang.Object implements scalachat.remote.Event,java.io.Serializable,scala.ScalaObject,scala.Product
public final class scalachat.remote.Ping$ extends scala.runtime.AbstractFunction0 implements scala.ScalaObject
pong ! Ping()
case class Ping(i: Int) extends Event
pong ! Ping(0)
没有找到相关结果
已邀请:
2 个回复
晤默报
我也很惊讶，默认情况下，case对象是可序列化的。 编辑：正确阅读例外后我怀疑： 您正尝试通过网络发送案例类的生成的伴随对象，而不是案例类的实例。郡豪靠暖
，只是。如果你修好这些东西会有用吗？