获取网站服务器的ip地址（跨过路由器ip）

package test;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;

public class CommandTest {

public static void main(String[] args) {
try {
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec("ipconfig");
InputStream inputStream = proc.getInputStream();
ByteArrayOutputStream outStream = new ByteArrayOutputStream();

byte[] data = new byte[1024];
int count = -1;
while ((count = inputStream.read(data, 0, 1024)) != -1)
outStream.write(data, 0, count);
data = null;
System.out.println(new String(outStream.toByteArray(), "UTF-8"));
} catch (Exception e) {
e.printStackTrace();
}
}
}