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:
/*
 author by itshubao.com
 GetIP.java
 */
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.itshubao.com");
      }
	  catch (UnknownHostException e) {
         System.exit(2);
      }
      System.out.println(address.getHostName() + "="
      + address.getHostAddress());
      System.exit(0);
   }
}
 以上代码运行输出结果为:
www.itshubao.com=120.25.193.95