是否可以使用一些代码获得设备的IP地址?
当前回答
您不需要像目前提供的解决方案那样添加权限。以字符串形式下载此网站:
http://www.ip-api.com/json
or
http://www.telize.com/geoip
下载一个网站作为字符串可以用java代码完成:
http://www.itcuties.com/java/read-url-to-string/
像这样解析JSON对象:
https://stackoverflow.com/a/18998203/1987258
json属性“query”或“ip”包含ip地址。
其他回答
private InetAddress getLocalAddress()throws IOException {
try {
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 inetAddress;
}
}
}
} catch (SocketException ex) {
Log.e("SALMAN", ex.toString());
}
return null;
}
这里是@Nilesh和@anargund的kotlin版本
fun getIpAddress(): String {
var ip = ""
try {
val wm = applicationContext.getSystemService(WIFI_SERVICE) as WifiManager
ip = Formatter.formatIpAddress(wm.connectionInfo.ipAddress)
} catch (e: java.lang.Exception) {
}
if (ip.isEmpty()) {
try {
val en = NetworkInterface.getNetworkInterfaces()
while (en.hasMoreElements()) {
val networkInterface = en.nextElement()
val enumIpAddr = networkInterface.inetAddresses
while (enumIpAddr.hasMoreElements()) {
val inetAddress = enumIpAddr.nextElement()
if (!inetAddress.isLoopbackAddress && inetAddress is Inet4Address) {
val host = inetAddress.getHostAddress()
if (host.isNotEmpty()) {
ip = host
break;
}
}
}
}
} catch (e: java.lang.Exception) {
}
}
if (ip.isEmpty())
ip = "127.0.0.1"
return ip
}
public static String getdeviceIpAddress() {
try {
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();
}
}
}
} catch (SocketException ex) {
ex.printStackTrace();
}
return null;
}
你可以使用LinkProperties。建议用于新的Android版本。
此功能检索WiFi和移动数据的本地IP地址。它需要Manifest.permission。ACCESS_NETWORK_STATE许可。
@Nullable
public static String getDeviceIpAddress(@NonNull ConnectivityManager connectivityManager) {
LinkProperties linkProperties = connectivityManager.getLinkProperties(connectivityManager.getActiveNetwork());
InetAddress inetAddress;
for(LinkAddress linkAddress : linkProperties.getLinkAddresses()) {
inetAddress = linkAddress.getAddress();
if (inetAddress instanceof Inet4Address
&& !inetAddress.isLoopbackAddress()
&& inetAddress.isSiteLocalAddress()) {
return inetAddress.getHostAddress();
}
}
return null;
}
老实说,我对代码安全只是有点熟悉,所以这可能有点像黑客。但对我来说,这是最通用的方法:
package com.my_objects.ip;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class MyIpByHost
{
public static void main(String a[])
{
try
{
InetAddress host = InetAddress.getByName("nameOfDevice or webAddress");
System.out.println(host.getHostAddress());
}
catch (UnknownHostException e)
{
e.printStackTrace();
}
} }
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