Java获取网络主机信息

InetAddress类表示互联网协议 （IP） 地址

有两个子类InetAddress InetAddress

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 javaioIOException;

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 = InetAddressgetLocalHost();

Systemoutprintln(addressgetHostAddress());

Systemoutprintln(addresstoString());

Systemoutprintln();

//获取cot的IP地址

InetAddress address = InetAddressgetByName();

Systemoutprintln(getHostAddress:\t + addressgetHostAddress());

Systemoutprintln(getHostName:\t + addressgetHostName());

Systemoutprintln();

//获取我博客的IP地址

InetAddress address = InetAddressgetByName(lav);

Systemoutprintln(getHostAddress:\t + addressgetHostAddress());

Systemoutprintln(getHostName:\t + addressgetHostName());

//直接用ip地址构建

Systemoutprintln(InetAddressgetByName());

Systemoutprintln();

//获取域名下所有的IP地址

//InetAddress[] address = InetAddressgetAllByName();

InetAddress[] address = InetAddressgetAllByName();

for (InetAddress address : address) {

//Systemoutprintln(addressgetHostAddress());

Systemoutprintln(address);

}

InetAddress address = InetAddressgetByName();

Systemoutprintln(addressisReachable());

}

}

运行输出结果

lavasoft/

getHostAddress:

getHostName:

getHostAddress:

getHostName: lav

/

/

/

/

false

Process finished with exit code