知识大全 Java获取网络主机信息

Posted 2022-07-19 地址

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　　 InetAddress类表示互联网协议（IP）地址

　　有两个子类 Inet Address Inet Address

　　通过 InetAddress可以方便获取一个域名下的IP 也可以获取一个IP的主机名

　　下面是例子通过程序查看 cto主机的IP信息 cto是不让ping的

　　代码

　　 import java io IOException; import InetAddress; public class TestInetAddress public static void main(String[] args) throws IOException test(); public static void test() throws IOException //获取本机的IP地址 InetAddress address = InetAddress getLocalHost(); System out println(address getHostAddress()); System out println(address toString()); System out println( ); //获取 cot的IP地址 InetAddress address = InetAddress getByName( ); System out println( getHostAddress:\\t + address getHostAddress()); System out println( getHostName:\\t + address getHostName()); System out println( ); //获取我博客的IP地址 InetAddress address = InetAddress getByName( lav ); System out println( getHostAddress:\\t + address getHostAddress()); System out println( getHostName:\\t + address getHostName()); //直接用ip地址构建 System out println(InetAddress getByName( )); System out println( ); //获取域名下所有的IP地址 // InetAddress[] address = InetAddress getAllByName( ); InetAddress[] address = InetAddress getAllByName( ); for (InetAddress address : address ) // System out println(address getHostAddress()); System out println(address); InetAddress address = InetAddress getByName( ); System out println(address isReachable( ));

　　运行输出结果

　　 lavasoft/ getHostAddress: getHostName: getHostAddress: getHostName: lav/ / / / false

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