网络编程—IP
作者:互联网
网络编程—IP
IP地址: InetAddress
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唯一定位的网络上的计算机
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127.0.0.1 ;本机Locathost
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ip地址分类
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ipv4/ipv6
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IPV4 127.0.0.1 , 0~255, 42亿
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IPV6 128位 8个无符号整数
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公网(互联网)—私网(局域网)
ABCD类地址
192.168.XX.XX 专门给组织内部使用
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域名:记忆问题
- IP
package com.deng.lesson01;
import java.net.InetAddress;
import java.net.UnknownHostException;
//测试IP
public class TestInetAddress {
public static void main(String[] args) {
try {
//查询本机地址
InetAddress inetAddress1 = InetAddress.getByName("127.0.0.1");
System.out.println(inetAddress1);
InetAddress inetAddress3 = InetAddress.getByName("localhost");
System.out.println(inetAddress3);
InetAddress inetAddress4= InetAddress.getLocalHost();
System.out.println(inetAddress4);
//查询网站IP地址
InetAddress inetAddress2 = InetAddress.getByName("www.baidu.com");
System.out.println(inetAddress2);
//常用方法
//System.out.println(inetAddress1.getAddress());
System.out.println(inetAddress2.getCanonicalHostName());//规范的名字
System.out.println(inetAddress3.getHostAddress());//IP
System.out.println(inetAddress4.getHostName());//域名 或者本机的名字
}catch (UnknownHostException e){
e.printStackTrace();
}
}
}
标签:inetAddress1,IP,编程,System,网络,println,InetAddress,out 来源: https://www.cnblogs.com/SXDMG/p/16306600.html