Android如何獲取外網和本地的ip
來源：程序員人生 發布時間：2015-06-06 08:08:49 閱讀次數：4059次
/**
* 獲得外網的IP
*/
public static String GetNetIp() {
URL infoUrl = null;
InputStream inStream = null;
String ipLine = "";
HttpURLConnection httpConnection = null;
try {
infoUrl = new URL("http://ip168.com/");
URLConnection connection = infoUrl.openConnection();
httpConnection = (HttpURLConnection) connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
inStream = httpConnection.getInputStream();
BufferedReader reader = new BufferedReader(
new InputStreamReader(inStream, "utf⑻"));
StringBuilder strber = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
strber.append(line + "
");
Pattern pattern = Pattern
.compile("((?:(?:25[0⑸]|2[0⑷]d|((1d{2})|([1⑼]?d))).){3}(?:25[0⑸]|2[0⑷]d|((1d{2})|([1⑼]?d))))");
Matcher matcher = pattern.matcher(strber.toString());
if (matcher.find()) {
ipLine = matcher.group();
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
inStream.close();
httpConnection.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
return ipLine;
}
/**
* 獲得本地IP
*/
public static String getLocalIpAddress() {
try {
Enumeration<NetworkInterface> en = NetworkInterface
.getNetworkInterfaces();
while (en.hasMoreElements()) {
NetworkInterface ni = en.nextElement();
Enumeration<InetAddress> enIp = ni.getInetAddresses();
while (enIp.hasMoreElements()) {
InetAddress inet = enIp.nextElement();
if (!inet.isLoopbackAddress()
&& (inet instanceof Inet4Address)) {
return inet.getHostAddress().toString();
}
}
}
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "0";
}
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