有没有可能使用一些代码获取设备的IP地址?
有没有可能使用一些代码获取设备的IP地址?
你可以使用LinkProperties。它适用于新的Android版本。
此功能可同时检索WiFi和移动数据的本地IP地址。它需要Manifest.permission.ACCESS_NETWORK_STATE
权限。
@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;
}
在您的活动中,以下函数getIpAddress(context)
返回手机的IP地址:
public static String getIpAddress(Context context) {
WifiManager wifiManager = (WifiManager) context.getApplicationContext()
.getSystemService(WIFI_SERVICE);
String ipAddress = intToInetAddress(wifiManager.getDhcpInfo().ipAddress).toString();
ipAddress = ipAddress.substring(1);
return ipAddress;
}
public static InetAddress intToInetAddress(int hostAddress) {
byte[] addressBytes = { (byte)(0xff & hostAddress),
(byte)(0xff & (hostAddress >> 8)),
(byte)(0xff & (hostAddress >> 16)),
(byte)(0xff & (hostAddress >> 24)) };
try {
return InetAddress.getByAddress(addressBytes);
} catch (UnknownHostException e) {
throw new AssertionError();
}
}
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
InternetHelper.java:
public class InternetHelper {
/**
* Get IP address from first non-localhost interface
*
* @param useIPv4 true=return ipv4, false=return ipv6
* @return address or empty string
*/
public static String getIPAddress(boolean useIPv4) {
try {
List<NetworkInterface> interfaces =
Collections.list(NetworkInterface.getNetworkInterfaces());
for (NetworkInterface interface_ : interfaces) {
for (InetAddress inetAddress :
Collections.list(interface_.getInetAddresses())) {
/* a loopback address would be something like 127.0.0.1 (the device
itself). we want to return the first non-loopback address. */
if (!inetAddress.isLoopbackAddress()) {
String ipAddr = inetAddress.getHostAddress();
boolean isIPv4 = ipAddr.indexOf(':') < 0;
if (isIPv4 && !useIPv4) {
continue;
}
if (useIPv4 && !isIPv4) {
int delim = ipAddr.indexOf('%'); // drop ip6 zone suffix
ipAddr = delim < 0 ? ipAddr.toUpperCase() :
ipAddr.substring(0, delim).toUpperCase();
}
return ipAddr;
}
}
}
} catch (Exception ignored) { } // if we can't connect, just return empty string
return "";
}
/**
* Get IPv4 address from first non-localhost interface
*
* @return address or empty string
*/
public static String getIPAddress() {
return getIPAddress(true);
}
}
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;
}
WifiManager wm = (WifiManager) getSystemService(WIFI_SERVICE);
String ipAddress = BigInteger.valueOf(wm.getDhcpInfo().netmask).toString();
只需使用Volley从此网站获取IP即可。
RequestQueue queue = Volley.newRequestQueue(this);
String urlip = "http://checkip.amazonaws.com/";
StringRequest stringRequest = new StringRequest(Request.Method.GET, urlip, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
txtIP.setText(response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
txtIP.setText("didnt work");
}
});
queue.add(stringRequest);
最近,即使从网络断开(没有服务指示器),getLocalIpAddress()
仍然返回一个IP地址。这意味着在“设置”>“关于手机”>“状态”中显示的IP地址与应用程序所认为的不同。
我已经通过添加以下代码来实现解决方法:
ConnectivityManager cm = getConnectivityManager();
NetworkInfo net = cm.getActiveNetworkInfo();
if ((null == net) || !net.isConnectedOrConnecting()) {
return null;
}
在 Kotlin 中,可以不使用 Formatter
private fun getIPAddress(useIPv4 : Boolean): String {
try {
var interfaces = Collections.list(NetworkInterface.getNetworkInterfaces())
for (intf in interfaces) {
var addrs = Collections.list(intf.getInetAddresses());
for (addr in addrs) {
if (!addr.isLoopbackAddress()) {
var sAddr = addr.getHostAddress();
var isIPv4: Boolean
isIPv4 = sAddr.indexOf(':')<0
if (useIPv4) {
if (isIPv4)
return sAddr;
} else {
if (!isIPv4) {
var delim = sAddr.indexOf('%') // drop ip6 zone suffix
if (delim < 0) {
return sAddr.toUpperCase()
}
else {
return sAddr.substring(0, delim).toUpperCase()
}
}
}
}
}
}
} catch (e: java.lang.Exception) { }
return ""
}
https://github.com/ipregistry/ipregistry-java
IpregistryClient client = new IpregistryClient("tryout");
RequesterIpInfo requesterIpInfo = client.lookup();
requesterIpInfo.getIp();
"INTERNET"
"ACCESS_NETWORK_STATE"
现在将此函数添加到您的MainActivity.class中。getPublicIP();
private void getPublicIP() {
ArrayList<String> urls=new ArrayList<String>(); //to read each line
new Thread(new Runnable(){
public void run(){
//TextView t; //to show the result, please declare and find it inside onCreate()
try {
// Create a URL for the desired page
URL url = new URL("https://api.ipify.org/"); //My text file location
//First open the connection
HttpURLConnection conn=(HttpURLConnection) url.openConnection();
conn.setConnectTimeout(60000); // timing out in a minute
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
//t=(TextView)findViewById(R.id.TextView1); // ideally do this in onCreate()
String str;
while ((str = in.readLine()) != null) {
urls.add(str);
}
in.close();
} catch (Exception e) {
Log.d("MyTag",e.toString());
}
//since we are in background thread, to post results we have to go back to ui thread. do the following for that
PermissionsActivity.this.runOnUiThread(new Runnable(){
public void run(){
try {
Toast.makeText(PermissionsActivity.this, "Public IP:"+urls.get(0), Toast.LENGTH_SHORT).show();
}
catch (Exception e){
Toast.makeText(PermissionsActivity.this, "TurnOn wiffi to get public ip", Toast.LENGTH_SHORT).show();
}
}
});
}
}).start();
}