在Java编程中,如何从IP地址查询出主机名?
以下示例显示了如何通过net.InetAddress
类的InetAddress.getByName()
方法将指定的IP地址查到主机名称。
package com.yiibai;
import java.net.InetAddress;
public class HostSpecificByIP {
public static void main(String[] argv) throws Exception {
InetAddress addr = InetAddress.getByName("www.yiibai.com");
System.out.println("Host name is: "+addr.getHostName());
System.out.println("Ip address is: "+ addr.getHostAddress());
}
}
Java
上述代码示例将产生以下结果 -
Host name is: www.yiibai.com
Ip address is: 112.124.103.85
Shell
示例-2
从IP地址查找主机名的另一个示例:
package com.yiibai;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class HostSpecificByIP2 {
public static void main(String[] args) {
InetAddress ip;
String hostname;
try {
ip = InetAddress.getLocalHost();
hostname = ip.getHostName();
System.out.println("Your current IP address : " + ip);
System.out.println("Your current Hostname : " + hostname);
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
}
Java
上述代码示例将产生以下结果(输出页面源代码) -
Your current IP address : YB-PC/192.168.1.50
Your current Hostname : YB-PC
原文地址:https://www.cnblogs.com/borter/p/9617174.html
时间: 2024-10-07 06:25:14