Java IP Address to Int ipToInt(String ipAddr)

Description

ip To Int

License

Open Source License

Declaration

public static int ipToInt(String ipAddr) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.net.InetAddress;

public class Main {

    public static int ipToInt(String ipAddr) {
        try {/*from  w  w w  .  j av  a2s.  c  o m*/
            return bytesToInt(ipToBytesByInet(ipAddr));
        } catch (Exception e) {
            throw new IllegalArgumentException(ipAddr + " is invalid IP");
        }
    }

    public static int bytesToInt(byte[] bytes) {
        int addr = bytes[3] & 0xFF;
        addr |= ((bytes[2] << 8) & 0xFF00);
        addr |= ((bytes[1] << 16) & 0xFF0000);
        addr |= ((bytes[0] << 24) & 0xFF000000);
        return addr;
    }

    public static byte[] ipToBytesByInet(String ipAddr) {
        try {
            return InetAddress.getByName(ipAddr).getAddress();
        } catch (Exception e) {
            throw new IllegalArgumentException(ipAddr + " is invalid IP");
        }
    }
}

Related

1. ip2int(String ipAddr)
2. ipToInt(final String addr)
3. ipToInt(String addr)
4. ipToInt(String address)
5. ipToInt(String ip)
6. IpToInt(String strIp)
7. ipToInteger(String ip)
8. IPV4AddressStrToInteger(String ipAddressStr)
9. IPV4AddressToInteger(byte[] addr)