<span style="font-size:18px;">public class IpUtil { /** * ip地址转换成16进制long * @param ipString * @return */ public static Long ipToLong(String ipString) { Long[] ip = new Long[4]; int pos1= ipString.indexOf("."); int pos2= ipString.indexOf(".",pos1+1); int pos3= ipString.indexOf(".",pos2+1); ip[0] = Long.parseLong(ipString.substring(0 , pos1)); ip[1] = Long.parseLong(ipString.substring(pos1+1 , pos2)); ip[2] = Long.parseLong(ipString.substring(pos2+1 , pos3)); ip[3] = Long.parseLong(ipString.substring(pos3+1)); return (ip[0]<<24)+(ip[1]<<16)+(ip[2]<<8)+ip[3]; } public static void main(String[] args){ System.out.println(ipToLong("192.168.1.1")); }</span> }
时间: 2024-11-05 17:26:15