晚上好 Stackoverflow,
我被困在一个无法让 Scala 正则表达式匹配的地方,这是我的代码
private def handle_read(packet: TFTPReadRequestPacket, tftp_io: TFTP): Unit = {
val MAC_REGEX = "([0-9A-F]{2}[:-]){5}([0-9A-F]{2})".r
packet.getFilename match {
case MAC_REGEX(a) => println(s"Client is coming from $a")
}
}
当正则表达式是([0-9A-F]{2}[:-])
并且我请求文件70-
时它很好并且吐出客户端“来自 70”,但是当它是完整的正则表达式并且我请求70-CD-60-74-24-9C
它时会抛出这样的异常
[ERROR] [04/28/2015 21:25:27.818] [polydeploy-baremetal-akka.actor.default-dispatcher-4] [akka://polydeploy-baremetal/user/TFTP_Queue] 70-CD-60-74-24-9C (of class java.lang.String)
scala.MatchError: 70-CD-60-74-24-9C (of class java.lang.String)
at com.polydeploy.baremetal.TFTPQueue$.handle_read(TFTPQueue.scala:40)
at com.polydeploy.baremetal.TFTPQueue$.com$polydeploy$baremetal$TFTPQueue$$handle_request(TFTPQueue.scala:33)
at com.polydeploy.baremetal.TFTPQueue$$anonfun$receive$1.applyOrElse(TFTPQueue.scala:14)
at akka.actor.Actor$class.aroundReceive(Actor.scala:467)
at com.polydeploy.baremetal.TFTPQueue$.aroundReceive(TFTPQueue.scala:10)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
at akka.actor.ActorCell.invoke(ActorCell.scala:487)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
at akka.dispatch.Mailbox.run(Mailbox.scala:221)
at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
我想要尝试并完成的是能够让 TFTP 请求进入pxelinux.cfg/01-70-CD-60-74-24-9C
并提取 MAC 地址。
非常感谢任何和所有帮助!
谢谢,利亚姆。