java 得到本机所有ip

java 得到本机所有ip

 

public   static  String[] getAllLocalHostIP()
     {
        String[] ret = null;
        try
        {
            String hostName = InetAddress.getLocalHost().getHostName();
            if (hostName == null || hostName.length() < 1)
            {
                return ret;
            }
            InetAddress[] inetAddresses = InetAddress.getAllByName(hostName);
            if (inetAddresses == null || inetAddresses.length < 1)
            {
                return ret;
            }
            
            ret = new String[inetAddresses.length];
            for (int i = 0; i < inetAddresses.length; i++)
            {
                ret[i] = inetAddresses[i].getHostAddress();
                
            }
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
        }
        return ret;
    }