Java实例获取指定主机（网址）的IP地址：

package xuexi.Java.Two;
//以下实例演示了如何使用 InetAddress 类的 InetAddress.getByName() 方法来获取指定主机（网址）的IP地址：
import java.net.InetAddress;
import java.net.UnknownHostException;

public class GetIP {
    public static void main(String[] args) {
        InetAddress address = null;
        try {
            address = InetAddress.getByName("www.baidu.com");
        }
        catch (UnknownHostException e){
            System.exit(2);
        }
     System.out.println(address.getHostName()+"="+address.getHostAddress());
        System.exit(0);
    }
}