我目前正在SAP PI(接收方确定对象)中构建一个XPath条件,它应该将消息路由到接收方1或接收方2.
业务发送的给定documentID值如下。
接收方1接收以下documentID范围内的消息 范围:“F00”到“F99”
接收方2接收以下documentID范围内的消息 范围:“FA0”到“FZ9”
我能想到的示例条件,但不确定这是否有效或逻辑是否正确。跟进问题,是否大于/小于符号接受非数字字符?
Receiver 1的条件(/ p1:Upload / ContainerEvent [WorkAssignmentID> = F00] EX AND / p1:Upload / ContainerEvent [WorkAssignmentID< = F99] EX)
接收者2的条件 (/ p1:Upload / ContainerEvent [WorkAssignmentID> = FA0] EX AND / p1:Upload / ContainerEvent [WorkAssignmentID< = FZ9] EX)
*我也在考虑是否可以在XPath中使用substring。随意提供您的意见。感谢
此致 查尔斯谭
答案 0 :(得分:2)
Pure XPath 1.0解决方案:
Receiver 1接收以下documentID范围内的消息范围:F00 到F99
/*/Upload/ContainerEvent
[WorkAssignmentId
[string-length() = 3]
[starts-with(., 'F')][substring(.,2,2) >= 0][99 >= substring(.,2,2)]
]/EX
Receiver 2接收以下documentID范围内的消息范围:FA0 到FZ9
/*/Upload/ContainerEvent
[WorkAssignmentId
[string-length() = 3]
[starts-with(., 'F')]
[26 > string-length(
translate('ABCDEFGHIJKLMNOPQRSTUVWXYZ',substring(.,2,1), ''))]
[substring(.,3,1) >= 0][9 >= substring(.,3,1)]
]/EX
以下是基于XSLT的验证:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="/">
<xsl:copy-of select=
"/*/Upload/ContainerEvent
[WorkAssignmentId
[string-length() = 3]
[starts-with(., 'F')][substring(.,2,2) >= 0][99 >= substring(.,2,2)]
]/EX"/>
==============================
<xsl:copy-of select=
"/*/Upload/ContainerEvent
[WorkAssignmentId
[string-length() = 3]
[starts-with(., 'F')]
[26 > string-length(
translate('ABCDEFGHIJKLMNOPQRSTUVWXYZ',substring(.,2,1), ''))]
[substring(.,3,1) >= 0][9 >= substring(.,3,1)]
]/EX"/>
</xsl:template>
</xsl:stylesheet>
对以下XML源文档应用此转换时(未提供):
<p1>
<Upload>
<ContainerEvent>
<WorkAssignmentId>F13</WorkAssignmentId>
<EX>F13</EX>
</ContainerEvent>
<ContainerEvent>
<WorkAssignmentId>F99</WorkAssignmentId>
<EX>F99</EX>
</ContainerEvent>
<ContainerEvent>
<WorkAssignmentId>E15</WorkAssignmentId>
<EX>E15</EX>
</ContainerEvent>
<ContainerEvent>
<WorkAssignmentId>FA7</WorkAssignmentId>
<EX>FA7</EX>
</ContainerEvent>
<ContainerEvent>
<WorkAssignmentId>FZ9</WorkAssignmentId>
<EX>FZ9</EX>
</ContainerEvent>
<ContainerEvent>
<WorkAssignmentId>FAB</WorkAssignmentId>
<EX>FAB</EX>
</ContainerEvent>
</Upload>
</p1>
生成了想要的结果:
<EX>F13</EX>
<EX>F99</EX>
==============================
<EX>FA7</EX>
<EX>FZ9</EX>
答案 1 :(得分:0)
回答你的后续问题(“大于/小于标志是否接受非数字字符?”):在XPath 1.0中,不,大于/小于仅在数字上运行。这在XPath 2.0中发生了变化。