验证InetSocketAddresses的正则表达式(ipv4/v6 +端口地址) [英] Regular expression to validate InetSocketAddresses (ipv4/v6 + port addresses)

问题描述

我正在为ipv4和ipv6寻找经过测试的正则表达式

I am looking for tested regular expressions for both ipv4 and ipv6 InetSocketAddress (i.e., ip address + port number). I am not interested in validating hostnames.

它可以是两个正则表达式(一个用于ipv4，一个用于ipv6)或一个组合的正则表达式.

It can be two regex (one for ipv4, one for ipv6) or one combined regex.

有人可以分享吗?

编辑

有关ip4格式的信息，请参见此处，有关ipv6格式的信息，请参见此处.然后，在端口号上添加:".

For ip4 format information see here, for ipv6 format information see here. Then, port number is added with ':'.

编辑2 要创建字符串表示形式，我将像这样进行操作:

EDIT 2 To create a string representation, I will proceed like this:

byte[] tmp = { 10, 1, 0, 0 };
InetSocketAddress isa = new InetSocketAddress(
        InetAddress.getByAddress(tmp), 443);

返回:

/10.1.0.0:443

推荐答案

尝试在InetSocketAddress的.toString()上使用正则表达式来执行此操作可能不是一个好主意. (请参阅上述问题的评论)

Trying to use a regex on the .toString() of InetSocketAddress to do this might not be such a good idea. (see comments on question above)

一种可能的替代方法是使用 URL 或 URI 来打印地址字符串格式，它是更加标准化的.

One possible alternative is to use a URL or URI to print the address in string format, which is much more standardized.

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另一方面，如果您想用正则表达式折磨自己...;-)

On the other hand, if you want to torture yourself with regular expressions... ;-)

IPv4:

      Pattern: .*/([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+):([0-9]+)
Java constant: ".*/([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+):([0-9]+)"

仅处理点分四进制格式的地址.无法检测到无效地址.

Handles only dotted-quad format addresses. Does not detect invalid addresses.

IPv6:

      Pattern: .*/([0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+(%[a-zA-Z0-9]+)?):([0-9]+)
Java constant: ".*/([0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+(%[a-zA-Z0-9]+)?):([0-9]+)"

处理所有8个16位段的IPv6地址. (再次注意，这样做的唯一原因是因为Java中的Inet6Address实现似乎以非标准的方式打印地址-可能因此可以附加端口号并且没有歧义)不检测无效的IPv6地址.仅处理小写的十六进制字符.使用大写或小写字母和/或数字处​​理区域/范围ID(如果有).

Handles IPv6-addresses with all 8 16-bit sections. (note again that the only reason this works is because the Inet6Address implementation in Java seems to print the addresses in a non-standard way - probably so it can append the port number and there is no ambiguity) Does not detect invalid IPv6 addresses. Handles only lowercase hex characters. Handles zone/scope IDs (if present) with uppercase or lowercase letters and/or digits.

我使用方便的小程序对它们进行了测试.

记录下来，我仍然认为这是一个坏主意. ;-)我不确定是否所有的Java平台都会以这种方式打印地址.

And for the record, I still think it's a bad idea. ;-) I can't be sure if all Java platforms will print the addresses this way.

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