Java IP Address to Long ip2Long(String ip)

Description

ip Long

License

Open Source License

Declaration

public static final long ip2Long(String ip) 

Method Source Code

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

public class Main {
    public static final long ip2Long(String ip) {
        if (ip == null)
            return 0;
        if (ip.startsWith("/"))
            ip = ip.substring(1);//from   w  w w. j a v a2s.  c  om
        int i = ip.indexOf(":");
        if (i > 0)
            ip = ip.substring(0, i);

        String[] strs = ip.split("\\.");
        long longIp = 0;
        if (strs.length == 4) {
            for (i = 3; i >= 0; i--) {
                longIp += (Long.parseLong(strs[3 - i]) << (i * 8));
            }
        } else if (strs.length == 6) {
            for (i = 5; i >= 0; i--) {
                longIp += (Long.parseLong(strs[5 - i]) << (i * 8));
            }
        }
        return longIp;
    }
}

Related

1. convertIpString2Long(String IP)
2. ip2Long(final String ip)
3. ip2long(String ip)
4. ip2long(String ip)
5. ip2long(String ip)
6. ip2long(String ip)
7. ip2long(String ip)
8. ip2long(String ip)
9. ip2Long(String ip)