Question

我有这种xml

<?xml version="1.0" encoding="UTF-8"?>
<setting>
<Key name="com.ahsay.afc.cpf.UserGroup" content="" allowMultiple="Y">
  <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="1328200856753" />
  <Value name="rsv-group-name" inheritParentAttribute="Y" type="string" data="group 1" />
  <Value name="rsv-user-type" inheritParentAttribute="Y" type="string" data="backup-user" />
  <Value name="rsv-owner" inheritParentAttribute="Y" type="string" data="" />
 <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
    <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
    <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name1" />
 </Key>
 <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
    <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
    <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name2" />
 </Key>
</Key>
<Key name="com.ahsay.afc.cpf.UserGroup" content="" allowMultiple="Y">
  <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="1328200856753" />
  <Value name="rsv-group-name" inheritParentAttribute="Y" type="string" data="group 2" />
  <Value name="rsv-user-type" inheritParentAttribute="Y" type="string" data="backup-user" />
  <Value name="rsv-owner" inheritParentAttribute="Y" type="string" data="" />
<Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
    <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
    <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name3" />
</Key>
<Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
    <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
    <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name4" />
  </Key>
 </Key>
</setting>

我想从rsv-login-name data =“value”获取rsv-group-name data =“value”

即我给解析器name3，我希望它返回组2

最好我到现在为止是这样的：

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:key name="umm" match="Value" use="@data"/>
<xsl:key name="amm" match="Value" use="@name"/>
<xsl:template match="/">
<xsl:for-each select="key('umm','name3')">
 <p>    
<xsl:value-of select="../../@name" />
 </p> 
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

Witch给我“com.ahsay.afc.cpf.UserGroup”并不是最好的结果：）

Answer 1

试试这个：

<xsl:value-of select="../../Value[@name = 'rsv-group-name']/@data"/>

Answer 2

使用密钥提高效率的解决方案：

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
 <xsl:strip-space elements="*"/>

 <xsl:key name="kValueByData" match="Value" use="@data"/>

 <xsl:key name="kValueByKeyAndName" match="Value"
  use="concat(generate-id(..), '+', @name)"/>

 <xsl:template match="/">
     <xsl:value-of select=
     "key('kValueByKeyAndName',
          concat(generate-id(key('kValueByData', 'name3')/../..),
                       '+',
                       'rsv-group-name'
                 )
          )
           /@data
    "/>
 </xsl:template>
</xsl:stylesheet>

将此转换应用于提供的XML文档：

<setting>
    <Key name="com.ahsay.afc.cpf.UserGroup" content="" allowMultiple="Y">
        <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="1328200856753" />
        <Value name="rsv-group-name" inheritParentAttribute="Y" type="string" data="group 1" />
        <Value name="rsv-user-type" inheritParentAttribute="Y" type="string" data="backup-user" />
        <Value name="rsv-owner" inheritParentAttribute="Y" type="string" data="" />
        <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
            <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
            <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name1" />
        </Key>
        <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
            <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
            <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name2" />
        </Key>
    </Key>
    <Key name="com.ahsay.afc.cpf.UserGroup" content="" allowMultiple="Y">
        <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="1328200856753" />
        <Value name="rsv-group-name" inheritParentAttribute="Y" type="string" data="group 2" />
        <Value name="rsv-user-type" inheritParentAttribute="Y" type="string" data="backup-user" />
        <Value name="rsv-owner" inheritParentAttribute="Y" type="string" data="" />
        <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
            <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
            <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name3" />
        </Key>
        <Key name="com.ahsay.afc.cpf.User" content="" allowMultiple="Y">
            <Value name="rsv-id" inheritParentAttribute="Y" type="string" data="13279083887401" />
            <Value name="rsv-login-name" inheritParentAttribute="Y" type="string" data="name4" />
        </Key>
    </Key>
</setting>

产生了想要的正确结果：

group 2

从xml获取父项子值

2 个答案: