JAVA中的DNS查询 [英] DNS query in JAVA

问题描述

我正在用Java中的DNS服务搞乱 - 我专门试图查找所有的google.com地址并将其显示在一个数组中，类似于使用nslookup运行查找：

  nslookup -q = TXT _netblocks.google.com 8.8.8.8 
  

我正在使用 InetAddress ，但继续收到异常错误。由于错误是指未知主机，我不认为 InetAddress 可以读取TXT记录（如果我使用google.com它的工作，但这并没有显示完整的IP范围）。以下是我的代码：

  InetAddress dnsresult [] = InetAddress.getAllByName（_ netblocks.google.com）; （int i = 0; i< dnsresult.length; i ++）
 System.out.println（dnsresult [i]）; 
 
  

如果有人可以指出我正确的方向，不妨感谢。

-JK

解决方案

InetAddress 不这样做，但您可以通过 JNDI DNS提供商。

I am messing around with DNS services in Java - I am specifically trying to lookup all google.com addresses and display them in an array, similar to running a lookup using nslookup:

nslookup -q=TXT _netblocks.google.com 8.8.8.8

I am using InetAddress for this but keep on getting exception errors. Since the errors refer to 'Unknown Host' I don't think InetAddress can read TXT records (if I use google.com it works, but that does't show the full IP Range). Below is my code:

InetAddress dnsresult[] = InetAddress.getAllByName("_netblocks.google.com");
            for (int i=0; i<dnsresult.length; i++)
            System.out.println (dnsresult[i]);

Would appreciate it if someone can point me in the right direction.

-JK

解决方案

InetAddress doesn't do this, but you can accomplish DNS TXT record lookups in Java via the JNDI DNS provider.

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