一、ip地址转换成数字

def iplog(ip:String):Long ={val s = ip.split("[.]").map(_.toLong)var ipnum = 0Lfor(i <- s){ipnum= i |ipnum << 8}ipnum}

二、二叉树方法

def binarySearch(ipnum: Long, ipRulers: Array[(String, String, String, String, String)]): Int = {//获取规则文件数据的索引var start =0var end = ipRulers.length-1while(start <= end){var middle =(start+end) /2val t = ipRulers(middle)val startIp = t._1.toLongval stopIp = t._2.toLongif(ipnum >= startIp && ipnum <= stopIp ){return  middle}  else  if( ipnum < startIp){end = middle -1}else if( ipnum > startIp){start = middle +1}}-1}

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