Android获取设备的IP地址的两种方法

最新推荐文章于 2025-07-15 11:57:34 发布

super_zlliu

最新推荐文章于 2025-07-15 11:57:34 发布

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分类专栏： Android 疑难杂症 Android 文章标签： android

本文链接：https://blog.youkuaiyun.com/zhonglinliu/article/details/54645080

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本文介绍了两种在Android系统中获取设备IP地址的方法，包括可能存在的判断瑕疵和相关代码实现。

Android获取IP地址的第一种方法（判断的地方有瑕疵），代码：

final List<String> uris = new ArrayList<>();
InetAddress ip = null;
Enumeration<NetworkInterface> netInterfaces = null;
try {
    netInterfaces = NetworkInterface.getNetworkInterfaces();
} catch (SocketException e) {
    e.printStackTrace();
}
while (netInterfaces.hasMoreElements()) {
    NetworkInterface ni = netInterfaces.nextElement();
    // 遍历所有ip
    Enumeration<InetAddress> ips = ni.getInetAddresses();
    while (ips.hasMoreElements()) {
        //我的需求是匹配10.42.0.1的地址
        ip = ips.nextElement();
        String fip = ip.getHostAddress();
        if (fip.trim().length() >= 7) {
            if (fip.trim().substring(0, 7).equals("10.42.0")) {
                uris.add(fip);
                if (uris.size() > 0) {
                    try {
                        this.setCustomMaterUri(new URI("http://10.42.0.1:11311/"));
                    } catch (URISyntaxException e) {
                        e.printStackTrace();
                    }
                } else {
                    Toast.makeText(this, "IP地址错误", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }
}
上面这种方法没有明确的把Ip地址按类区分开，下面这种方式是优化后的版本，可以封装成一个工具类，详细代码如下：
public class Util {
    public static final String ACRA_REPORT_ADDRESS = "http://developer.miivii.com:5984/acra-bugreport/_design/acra-storage/_update/report";

    public static final String ACRA_REPORT_LOGIN = "bugreport";

    public static final String ACRA_REPORT_PASSWORD = "miiviibugreport";

    // instead by your own machine IP address which you will connect to.
    public static final String ROS_MASTER_URI = "http://192.168.31.213:11311/";

    public static String getLocalIpAddress()
    {
        try
        {
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();)
            {
                NetworkInterface intf = en.nextElement();
                if(!intf.getDisplayName().equals("eth0")) continue;
                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();)
                {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address)
                    {
                        return inetAddress.getHostAddress().toString();
                    }
                }
            }
        }
        catch (SocketException ex)
        {
            Log.e("WifiPreference IpAddress", ex.toString());
        }
        return null;
    }


    public static boolean configDevice(){
        String ip = getLocalIpAddress();
        Log.e("========","======ip==="+ip);
        if(ip == null) return false;
        if(ip.substring(0,8).equals("10.42.0.")) return true;
        return false;
    }

    public static URI getCustomURI() {
        URI customMasterUri = null;
        try {
            customMasterUri = new URI("http://10.42.0.1:11311/");
        } catch (URISyntaxException e) {
            throw new RosRuntimeException(e);
        }
        return customMasterUri;
    }
}

相信会有用。