[网络协议]【Scala随机生成ip】

Scala随机生成ip代码

//main方法入口
  def main(args: Array[String]): Unit = {
    for (i <- 1 to 100){
      println(resetIp())
    }

  }
//ip计算
  def num2ip(ip:Int): String ={
    val b = new Array[Int](4)
    var x = ""
    b(0) = (ip>>24) & 0xff
    b(1) = (ip>>16) & 0xff
    b(2) = (ip>>8) & 0xff
    b(3) = ip & 0xff
    x = Integer.toString(b(0)) + "." + Integer.toString(b(1)) + "." + Integer.toString(b(2)) + "." + Integer.toString(b(3))
    x
  }
  
//生成ip
  def resetIp(): String ={
    //ip范围
    val range =  Array(Array(607649792, 608174079),//36.56.0.0-36.63.255.255
      Array(1038614528, 1039007743),//61.232.0.0-61.237.255.255
      Array(1783627776, 1784676351),//106.80.0.0-106.95.255.255
      Array(2035023872, 2035154943),//121.76.0.0-121.77.255.255
      Array(2078801920, 2079064063),//123.232.0.0-123.235.255.255
      Array(-1950089216, -1948778497),//139.196.0.0-139.215.255.255
      Array(-1425539072, -1425014785),//171.8.0.0-171.15.255.255
      Array(-1236271104, -1235419137),//182.80.0.0-182.92.255.255
      Array(-770113536, -768606209),//210.25.0.0-210.47.255.255
      Array(-569376768, -564133889) //222.16.0.0-222.95.255.255
    )

    val rdint = new Random()
    var index = rdint.nextInt(10)
    var ip = num2ip(range(index)(0) + rdint.nextInt(range(index)(1) - range(index)(0)))
    ip
  }