获取本机IP地址函数

来源：互联网发布：snmp编程交换机编辑：程序博客网时间：2024/05/29 07:06

private String getLocalIPAddress() throws SocketException   // for Android >= 4.0
{
    for(Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();en.hasMoreElements();)
    {
        NetworkInterface intf = en.nextElement();
        for(Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();)
        {
            InetAddress inetAddress = enumIpAddr.nextElement();
            if(!inetAddress.isLoopbackAddress() && (inetAddress instanceof Inet4Address))
            {
                return inetAddress.getHostAddress().toString();
            }
        }
    }

    return "null";
}

private String getLocalIPAddress() throws SocketException // for Android <= 2.3
{
    for(Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();en.hasMoreElements();)
    {
        NetworkInterface intf = en.nextElement();
        for(Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();)
        {
            InetAddress inetAddress = enumIpAddr.nextElement();
            if(!inetAddress.isLoopbackAddress()))
            {
                return inetAddress.getHostAddress().toString();
            }
        }
    }

    return "null";
}

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