ColdFusion IPv6到128位无符号整数 [英] ColdFusion IPv6 to 128-bit unsigned int

问题描述

我需要创建一个可以将IPv6地址转换为其数字表示形式的函数。

I needed to create a function that could convert an IPv6 address to its numeric representation.

使用IPv4非常简单，因为它使用的是32位无符号int为其数字表示形式。 IPv6由128位无符号整数表示。数字的大小太大，无法使用内置ColdFusion位逻辑函数。

Working with IPv4 is pretty straight forward as it uses an 32-bit unsigned int for its numerical representation. IPv6 is represented by an 128-bit unsigned int. That size of a number is too large for the builtin ColdFusion bit logic functions to use.

此函数必须利用底层Java系统进行转换。

This function must make use of the underlying Java system to make the conversion.

需要执行相反操作的函数：将ColdFusion 128位无符号整数转换为IPv6

Need a function to do the reverse: ColdFusion 128-bit unsigned int to IPv6

推荐答案

这是我编写的用于转换将IPv6地址转换为128位无符号整数。

This is the function that I wrote to transform an IPv6 address to a 128-bit unsigned int.

<cffunction name="IPv6ToUInt128" returntype="numeric" output="no" access="public" hint="returns uint128 number for IPv6 address">
    <cfargument name="vcIPv6" type="string" required="yes" hint="IPv6 address">

    <cfif arguments.vcIPv6 EQ "">
        <cfreturn 0>
    </cfif>

    <cfset local['javaMathBigInteger'] = CreateObject("java", "java.math.BigInteger")>
    <cfset local['javaNetInetAddress'] = CreateObject("java", "java.net.InetAddress")>
    <cftry>
        <cfset local['uint128'] = local.javaMathBigInteger.init(1, local.javaNetInetAddress.getByName(arguments.vcIPv6).getAddress()).toString()>
        <cfreturn local.uint128>
        <cfcatch type="any">
            <cfreturn 0>
        </cfcatch>
    </cftry>
</cffunction>

如果您有任何改进此代码的建议，请发表评论。

If you have any suggestions to improve this code, please leave comments.

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