windows 外部 IP 地址
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External IP Address
提问by Kazuma
Possible Duplicate:
Stable way of retrieving the external IP for a host behind a NAT
可能的重复：
为 NAT 后面的主机检索外部 IP 的稳定方式
Well, hello again. I was wondering how do i get the External IP Address (External since some people haves router) of the computer?
嗯，又见面了。我想知道如何获得计算机的外部 IP 地址（因为有些人有路由器，所以是外部的）？
回答by user534498
Write a program and use HTTP protocol to connect to some external websites such as this one: http://www.whatismyip.com/
编写一个程序，使用HTTP协议连接一些外部网站，例如：http: //www.whatismyip.com/
Then write a parser to parse out: Your IP Address Is: xxx.xxx.xxx.xxx
然后写个解析器解析出来：Your IP Address Is: xxx.xxx.xxx.xxx
Voila.
瞧。
回答by AJG85
Here's one way of using user's suggestion ... of course this only works for your own ip which you could also determine by opening the command prompt and running ipconfig /all
这是使用用户建议的一种方法......当然这仅适用于您自己的IP，您也可以通过打开命令提示符并运行来确定 ipconfig /all
#include <windows.h>
#include <wininet.h>
#include <iostream>
#pragma comment(lib, "wininet")
int main(int argc, char* argv[])
{
HINTERNET hInternet, hFile;
DWORD rSize;
char buffer[32];
hInternet = InternetOpen(NULL, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
hFile = InternetOpenUrl(hInternet, "http://automation.whatismyip.com/n09230945.asp", NULL, 0, INTERNET_FLAG_RELOAD, 0);
InternetReadFile(hFile, &buffer, sizeof(buffer), &rSize);
buffer[rSize] = '##代码##';
InternetCloseHandle(hFile);
InternetCloseHandle(hInternet);
std::cout << "Your IP Address: " << buffer << "\n";
system("pause");
return 0;
}
FYI: The owner's of http://www.whatismyip.com/request that you only hit this automation page once every 5 minutesso I feel compelled to put a caveat not to run this code more often than that as well :P
仅供参考：http: //www.whatismyip.com/的所有者要求您每 5 分钟只点击一次此自动化页面，因此我不得不警告不要更频繁地运行此代码：P
Note: http://automation.whatismyip.com/n09230945.aspis the newest address for the automation file. the 5 minute / 300 second rule is still in place.
注意：http: //automation.whatismyip.com/n09230945.asp是自动化文件的最新地址。5 分钟/300 秒规则仍然存在。
