内网IP
try {
InetAddress[] ia = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());
for(int i=0;i
System.out.print(ia[i].getHostAddress().toString());
}
} catch (UnknownHostException ex) {
// TODO 自动生成 catch 块
ex.printStackTrace();
}
公网IP
try {
URL url = new URL("http://www.ip138.com/ip2city.asp");
URLConnection conn = url.openConnection();
conn.setRequestProperty(
"User-Agent",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15");
conn.setRequestProperty("Content-Type", "text/html");
conn.setRequestProperty("Accept",
"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
InputStream is = conn.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is,
"GB2312"));
String line = null;
while ((line = br.readLine()) != null) {
if (line.contains("您的IP地址是")) {
// System.out.println(line);
int start = line.indexOf('[') + 1;
int end = line.indexOf(']');
System.out.println(line.substring(start, end));
}
}
br.close();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}