9
A
回答
1
10
這是good example。基本上你設置指向的java UUID類的擴展，然後引用它在XSL：
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:uuid="java:java.util.UUID">
<xsl:template match="/">
<xsl:variable name="uid" select="uuid:randomUUID()"/>
<xsl:value-of select="$uid"/>
</xsl:template>
4
看看另一個問題Generate GUID in XSLT。
可能this文章將幫助你 - 有定義的XSLT函數生成GUID
2
對於XSLT生成隨機數，見Casting the Dice with FXSL: Random Number Generation Functions in XSLT。它使用的唯一擴展函數是node-set（），這在XSLT 2.0中不再需要。
此外，如果要求只是ID是唯一的（不一定是隨機的），請看how to generate unique string。例如，如果要爲輸入XML文檔的每個元素生成一個UUID，則可以使用輸入文檔的URL和每個元素的唯一字符串的組合來生成輸入文檔的URL。
4
您可以使用XSLT片段爲這個（來源：http://code.google.com/p/public-contracts-ontology/source/browse/transformers/GB-notices/uuid.xslt?r=66e1d39a1c140079a86d219df5b3e031007cc957）：
<xsl:stylesheet xmlns:uuid="http://www.uuid.org" xmlns:math="http://exslt.org/math" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:template match="/">
<xsl:value-of select="
concat('First random ID:', uuid:get-id()),
concat('Base timestamp: ', uuid:generate-timestamp()),
concat('Clock id: ' ,uuid:generate-clock-id()),
concat('Network node: ' ,uuid:get-network-node()),
concat('UUID Version: ' ,uuid:get-uuid-version()),
concat('Generated UUID: ' ,uuid:get-uuid()),
concat('Generated UUID: ' ,uuid:get-uuid()),
concat('Generated UUID: ' ,uuid:get-uuid()),
concat('Generated UUID: ' ,uuid:get-uuid())
" separator=" "/>
</xsl:template>
<!--
Functions in the uuid: namespace are used to calculate a UUID
The method used is a derived timestamp method, which is explained
here: http://www.famkruithof.net/guid-uuid-timebased.html
and here: http://www.ietf.org/rfc/rfc4122.txt
-->
<!--
Returns the UUID
-->
<xsl:function name="uuid:get-uuid" as="xs:string*">
<xsl:variable name="ts" select="uuid:ts-to-hex(uuid:generate-timestamp())"/>
<xsl:value-of separator="-" select="
substring($ts, 8, 8),
substring($ts, 4, 4),
string-join((uuid:get-uuid-version(), substring($ts, 1, 3)), ''),
uuid:generate-clock-id(),
uuid:get-network-node()"/>
</xsl:function>
<!--
internal aux. fu
with saxon, this creates a more-unique result with
generate-id then when just using a variable containing a node
-->
<xsl:function name="uuid:_get-node">
<xsl:comment/>
</xsl:function>
<!-- generates some kind of unique id -->
<xsl:function name="uuid:get-id" as="xs:string">
<xsl:sequence select="generate-id(uuid:_get-node())"/>
</xsl:function>
<!--
should return the next nr in sequence, but this can't be done
in xslt. Instead, it returns a guaranteed unique number
-->
<xsl:function name="uuid:next-nr" as="xs:integer">
<xsl:variable name="node">
<xsl:comment/>
</xsl:variable>
<xsl:sequence select="
xs:integer(replace(
generate-id($node), '\D', ''))"/>
</xsl:function>
<!-- internal fu for returning hex digits only -->
<xsl:function name="uuid:_hex-only" as="xs:string">
<xsl:param name="string"/>
<xsl:param name="count"/>
<xsl:sequence select="
substring(replace(
$string, '[^0-9a-fA-F]', '')
, 1, $count)"/>
</xsl:function>
<!-- may as well be defined as returning the same seq each time -->
<xsl:variable name="_clock" select="uuid:get-id()"/>
<xsl:function name="uuid:generate-clock-id" as="xs:string">
<xsl:sequence select="uuid:_hex-only($_clock, 4)"/>
</xsl:function>
<!--
returns the network node, this one is 'random', but must
be the same within calls. The least-significant bit must be '1'
when it is not a real MAC address (in this case it is set to '1')
-->
<xsl:function name="uuid:get-network-node" as="xs:string">
<xsl:sequence select="uuid:_hex-only('09-17-3F-13-E4-C5', 12)"/>
</xsl:function>
<!-- returns version, for timestamp uuids, this is "1" -->
<xsl:function name="uuid:get-uuid-version" as="xs:string">
<xsl:sequence select="'1'"/>
</xsl:function>
<!--
Generates a timestamp of the amount of 100 nanosecond
intervals from 15 October 1582, in UTC time.
-->
<xsl:function name="uuid:generate-timestamp">
<!--
date calculation automatically goes
correct when you add the timezone information, in this
case that is UTC.
-->
<xsl:variable name="duration-from-1582" as="xs:dayTimeDuration">
<xsl:sequence select="
current-dateTime() -
xs:dateTime('1582-10-15T00:00:00.000Z')"/>
</xsl:variable>
<xsl:variable name="random-offset" as="xs:integer">
<xsl:sequence select="uuid:next-nr() mod 10000"/>
</xsl:variable>
<!-- do the math to get the 100 nano second intervals -->
<xsl:sequence select="
(days-from-duration($duration-from-1582) * 24 * 60 * 60 +
hours-from-duration($duration-from-1582) * 60 * 60 +
minutes-from-duration($duration-from-1582) * 60 +
seconds-from-duration($duration-from-1582)) * 1000
* 10000 + $random-offset"/>
</xsl:function>
<!-- simple non-generalized function to convert from timestamp to hex -->
<xsl:function name="uuid:ts-to-hex">
<xsl:param name="dec-val"/>
<xsl:value-of separator="" select="
for $i in 1 to 15
return (0 to 9, tokenize('A B C D E F', ' '))
[
$dec-val idiv
xs:integer(math:power(16, 15 - $i))
mod 16 + 1
]"/>
</xsl:function>
<xsl:function name="math:power">
<xsl:param name="base"/>
<xsl:param name="power"/>
<xsl:choose>
<xsl:when test="$power < 0 or contains(string($power), '.')">
<xsl:message terminate="yes">
The XSLT template math:power doesn't support negative or
fractional arguments.
</xsl:message>
<xsl:text>NaN</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="math:_power">
<xsl:with-param name="base" select="$base"/>
<xsl:with-param name="power" select="$power"/>
<xsl:with-param name="result" select="1"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:function>
<xsl:template name="math:_power">
<xsl:param name="base"/>
<xsl:param name="power"/>
<xsl:param name="result"/>
<xsl:choose>
<xsl:when test="$power = 0">
<xsl:value-of select="$result"/>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="math:_power">
<xsl:with-param name="base" select="$base"/>
<xsl:with-param name="power" select="$power - 1"/>
<xsl:with-param name="result" select="$result * $base"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>:choose>
</xsl:template>
</xsl:stylesheet>
+0
upvoted ... thank你:) – Ayyoudy
+0
感謝分享。源代碼（public-contracts-ontology）是一個無效的鏈接:( –
+0
）這個代碼可以得到4個不同的UUID「
0
如果使用.Net的XslCompiledTransform改變你的XSL，可以將EnableScripts屬性設置爲true，然後使用如下代碼如下：
<msxsl:script language="C#" implements-prefix="csharp">
<![CDATA[
public static string NewGuid()
{
return Guid.NewGuid().ToString();
}
]]>
</msxsl:script>
注意：我在上面給出了這個自定義功能的名稱/前綴csharp;但你可以隨心所欲地調用它。請參閱https://stackoverflow.com/a/1873265/361842。下面
完全XSLT文件提供一些額外的背景：
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:csharp="urn:JohnLBevan/NewGuid"
exclude-result-prefixes="xsl msxsl csharp"
>
<xsl:template match="@* | node()">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="//*/text()">
<!-- replaces all text nodes from input document with GUIDs -->
<xsl:value-of select="csharp:NewGuid()"/>
</xsl:template>
<msxsl:script language="C#" implements-prefix="csharp">
<![CDATA[
public static string NewGuid()
{
return Guid.NewGuid().ToString();
}
]]>
</msxsl:script>
</xsl:stylesheet>
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可能重複[生成XSLT GUID（http://stackoverflow.com/questions/5494175/generate-guid-in-xslt） –