类似nslookup
摘自：http://www.javadb.com/perform-nslookup-with-the-inetaddress-class
import java.net.InetAddress;
import java.net.UnknownHostException;
/*
* Main.java
*
* @author www.javadb.com
*/
public class Main {
/*
* This method performs a NS Lookup
*/
public void performNSLookup() {
try {
InetAddress inetHost = InetAddress.getByName("cnn.com");
String hostName = inetHost.getHostName();
System.out.println("The host name was: " + hostName);
System.out.println("The hosts IP address is: " + inetHost.getHostAddress());
} catch(UnknownHostException ex) {
System.out.println("Unrecognized host");
}
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
new Main().performNSLookup();
}
}