InetAddress获取主机信息_inetaddress.getbyname(dhcpv6gateway).gethostaddres-优快云博客

本文详细介绍了Java中InetAddress类的使用方法，包括获取本地主机地址、主机名称、字节形式的IP等操作，并展示了如何通过主机名、IP地址或IP字节数组获取InetAddress实例。

package love.jimo;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;

public class InetAdressTest {

	public static void main(String[] args) throws UnknownHostException {
		//返回主机的InetAdress实例
		InetAddress ina = InetAddress.getLocalHost();//要抛异常
		System.out.println("主机地址："+ina.getHostAddress());
		System.out.println("主机名称："+ina.getHostName());
		
		//获取字节型数组的地址
		byte [] bd = ina.getAddress();
		System.out.println("字节形式的IP："+Arrays.toString(bd));
		
		//直接输出InetAddress对象
		System.out.println("直接输出InetAddress对象："+ina);
		
		//根据机器名获取本机实例
		InetAddress ina2 = InetAddress.getByName("UR4CXB9B5PV6116");
		System.out.println("主机地址："+ina2.getHostAddress());
		System.out.println("主机名称："+ina2.getHostName());
		
		//根据IP地址来获取实例
		InetAddress ina3 = InetAddress.getByName("192.168.31.190");
		System.out.println("主机地址："+ina3.getHostAddress());
		System.out.println("主机名称："+ina3.getHostName());
		
		//根据IP地址字节数组来获取实例
		InetAddress ina4 = InetAddress.getByAddress(bd);
		System.out.println("主机地址："+ina4.getHostAddress());
		System.out.println("主机名称："+ina4.getHostName());
	}

}

运行结果：