import java.net.InetAddress;
import java.net.UnknownHostException;

public class Test {
	public static void main(String[] args) throws UnknownHostException {
		//獲取本機IP地址
		System.out.println(InetAddress.getLocalHost().getHostAddress());
		//獲取www.baidu.com的地址
		System.out.println(InetAddress.getByName("www.baidu.com"));
		//獲取www.baidu.com的真實IP地址
		System.out.println(InetAddress.getByName("www.baidu.com").getHostAddress());
		//獲取配置在HOST中的域名IP地址
		System.out.println(InetAddress.getByName("TEST").getHostAddress());
	}
}
 

    169.254.*.*(*為編輯時為隱私而隱藏)
	www.baidu.com/119.75.218.70
	119.75.218.70
        192.111.111.111