java 网络编程（一）InetAddress

package cn.sasa.net;

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

public class InetAddressDemo {
    public static void main(String[] args) {
        try {
            InetAddress address = InetAddress.getLocalHost();//主机名+IP
            String hostName =    address.getHostName();//主机名
            String hostAddress = address.getHostAddress();//IP

            InetAddress addr = InetAddress.getByName("www.163.com");
            InetAddress addr1 = InetAddress.getByName("192.168.0.211");
            System.out.println(address);
        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}