java实现根据域名获得ip地址代码详解编程语言

mport java.net.InetAddress; 
import java.net.UnknownHostException; 
 
public class GetIPAddressFromHostname { 
 
    public static void main(String[] args) { 
 
        try { 
 
            InetAddress inetAddr = InetAddress.getByName("open-open.com"); 
 
            byte[] addr = inetAddr.getAddress(); 
 
            // Convert to dot representation 
            String ipAddr = ""; 
            for (int i = 0; i < addr.length; i++) { 
                if (i > 0) { 
                    ipAddr += "."; 
                } 
                ipAddr += addr[i] & 0xFF; 
            } 
 
            System.out.println("IP Address: " + ipAddr); 
 
        } 
        catch (UnknownHostException e) { 
            System.out.println("Host not found: " + e.getMessage()); 
        } 
 
    } 
 
}