Java中主机名的IP地址？ [英] IP Address to Hostname in Java?

问题描述

我的主机文件（C：\ WINDOWS \ system32 \ drivers \ etcc \ hosts）有一堆主机名映射的IP地址：

My hosts file (C:\WINDOWS\system32\drivers\etc\hosts) has a bunch of IP Address to host name mappings:

# Switches
192.168.200.254       sw-con-ctrl
192.168.201.253    sw-con-ctrl-2
192.168.201.254       sw-con-ctrl-1
# 192.168.188.1       sw-con-ctrl-blk-1
# 192.168.189.1       sw-con-ctrl-red
192.168.190.62        access-console

# Routers
192.168.21.1          rtr1
192.168.22.1          rtr2

I我试图找到一种通过Java API以编程方式从IPAddress转换为HostName的方法。

I am trying to find a way to convert from an IPAddress to the HostName programmatically through Java APIs.

Pseudocode：

Pseudocode:

IPAddress ip = new IPAddress("192.168.190.62");
String host = ip.getHost();
System.out.println(host);  //prints "access-console"

推荐答案

我试过了来自此处的代码可以使用。即：

I tried the code from here and it works. Namely:

  InetAddress addr = InetAddress.getByName("192.168.190.62");
  String host = addr.getHostName();
  System.out.println(host);

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