Java获取发布的外部IP地址？

Question

I have been going through so many stackoverflow answers and none answers my question accurately.

My question is, how can I get my real internet external IP Address, not the local one, but my published IP Address which other people see & connect to?

Eg : 84.110.208.20 and not. 198.168.2.101

Currently im pooling the IP Address from whatismyip.com, but that takes a few seconds to get, since i have to buffer read it.

Is there a way to do it without reading the ip from a website?

Answer 1

I do not know a solution to your problem that you are asking for, but I tried out your solution and I'm not getting the same "few seconds" delay as you, so I decided to share my solution:

public static String getIp() throws IOException{
    URL whatismyip = new URL("http://icanhazip.com");
    BufferedReader in = new BufferedReader(new InputStreamReader(whatismyip.openStream()));
    return in.readLine();
}

Maybe whatismyip.com is slower, or has more information to parse?