Scala生成ip和Mac

//生成ip和MAC
  def genMacIp(): (String, String) = {
    val ipArr: Array[Int] = new Array[Int](4)
    //生成IP
    for (i <- 0 to ipArr.length - 1) {
      var rdInt: Int = Random.nextInt(256)
      //控制第二个数字是偶数,用于mac
      while (i == 2 && rdInt % 2 == 1) {
        rdInt = Random.nextInt(256)
      }
      if (i == 1 && rdInt == 0) rdInt = 1
      ipArr(i) = rdInt
    }
    val macArr: Array[Int] = new Array[Int](6)
    val macStrArr: Array[String] = new Array[String](6)
    for (i <- 0 to macArr.length - 1) {
      macArr(i) = ipArr(i % 4)
    }
    for (i <- 0 to macArr.length - 1) {
      var hexStr: String = Integer.toHexString(macArr(i)).toUpperCase()
      if (macArr(i) < 16) {
        hexStr = "0" + hexStr
      }
      macStrArr(i) = hexStr
    }
    val mac: String = macStrArr.mkString(":")
    val ip: String = ipArr.mkString(".")
    (mac, ip)
  }
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