ip地址转化

package com.lhy;

public class IpTest {

    public static void main(String[] args) {

        String ip = "49.93.207.191";
        System.out.println(ipToLong(ip));

        long ipLong = 828231615;
        System.out.println(longToIp(ipLong));


    }


    public static long ipToLong(String strIp){
        String[] ipPart = strIp.split("\\.");
        return Long.parseLong(ipPart[0]) << 24 | Long.parseLong(ipPart[1]) << 16 | Long.parseLong(ipPart[2]) << 8 | Long.parseLong(ipPart[3]);
    }

    public static String longToIp(long ipLong){
        StringBuffer sb = new StringBuffer();
        sb.append(ipLong >> 24 & 0xFF).append(".")
                .append(ipLong>>16 & 0xFF).append(".")
                .append(ipLong>>8 & 0xFF).append(".")
                .append(ipLong & 0xFF);
        return sb.toString();

    }




}