XSLT查询 - 根据来自上一节点的属性查找值

我必须查询属性值，然后根据该值我必须从另一个节点查找另一个属性值。XSLT查询 - 根据来自上一节点的属性查找值

这里是我的XML看起来像：

<?xml version="1.0" encoding="UTF-8"?> 
    <order main="0" state="ntype" otdType="SeeBeyond/eGate/OTDLead/UD1_0" identifier="Test/_453220556"> 
    <enum id="2" name="order" size="3"> 
     <item name="seq" value="0"/> 
     <item name="any" value="1"/> 
     <item name="mix" value="2"/> 
    </enum> 
    <enum id="3" name="align" size="8"> 
     <item name="blind" value="0"/> 
     <item name="begin" value="1"/> 
     <item name="exact" value="2"/> 
     <item name="final" value="3"/> 
     <item name="inter" value="4"/> 
     <item name="oneof" value="5"/> 
     <item name="regex" value="6"/> 
     <item name="super" value="7"/> 
    </enum> 
    <enum id="4" name="delimTerm" size="4"> 
     <item name="never" value="0"/> 
     <item name="allow" value="1"/> 
     <item name="cheer" value="2"/> 
     <item name="force" value="3"/> 
    </enum> 
    <enum id="5" name="delimKind" size="3"> 
     <item name="escape" value="0"/> 
     <item name="normal" value="1"/> 
     <item name="repeat" value="2"/> 
    </enum> 
    <enum id="6" name="nodeType" size="6"> 
     <item name="alter" value="0"/> 
     <item name="array" value="1"/> 
     <item name="delim" value="2"/> 
     <item name="fixed" value="3"/> 
     <item name="group" value="4"/> 
     <item name="trans" value="5"/> 
    </enum> 
    <overlay type="structure"> 
     <class id="34" name="com.stc.otd.runtime.OtdOutputStream" java="com.stc.otd.runtime.OtdOutputStream" type="baseclass"/> 
     <class id="4" name="java.lang.String" java="java.lang.String" type="baseclass"/> 
     <class id="39" name="com.stc.otd.runtime.OtdInputStream" java="com.stc.otd.runtime.OtdInputStream" type="baseclass"/> 
     <class id="43" name="byte" java="byte" type="primitive"/> 
     <class id="44" name="array of byte" java="byte[]" type="arraytype" base="43"/> 
     <class id="25" java="ud1.Test_453220556.Env1.Test" type="nodeclass"/> 
     <class id="27" java="ud1.Test_453220556.Test" type="nodeclass"> 
     <method id="55" name="unmarshalFromString" java="unmarshalFromString" result="31"> 
     <param id="56" name="in" java="in" type="28"/> 
     <throw id="57" name="java.io.IOException" java="java.io.IOException"/> 
     <throw id="58" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
     </method> 
     <method id="32" name="reset" java="reset" result="31"/> 
     <method id="59" name="setDecoding" java="setDecoding" result="31"> 
     <param id="60" name="code" java="code" type="28"/> 
     </method> 
     <method id="45" name="marshalToBytes" java="marshalToBytes" result="44"> 
     <throw id="46" name="java.io.IOException" java="java.io.IOException"/> 
     <throw id="47" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
     </method> 
     <method id="30" name="check" java="check" result="29"/> 
     <method id="65" name="setPostCoding" java="setPostCoding" result="31"> 
     <param id="66" name="code" java="code" type="28"/> 
     </method> 
     <method id="38" name="unmarshal" java="unmarshal" result="31"> 
     <param id="40" name="in" java="in" type="39"/> 
     <throw id="42" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
     <throw id="41" name="java.io.IOException" java="java.io.IOException"/> 
     </method> 
     <method id="63" name="setAnteCoding" java="setAnteCoding" result="31"> 
     <param id="64" name="code" java="code" type="28"/> 
     </method> 
     <method id="61" name="setEncoding" java="setEncoding" result="31"> 
     <param id="62" name="code" java="code" type="28"/> 
     </method> 
     <method id="48" name="unmarshalFromBytes" java="unmarshalFromBytes" result="31"> 
     <param id="49" name="in" java="in" type="44"/> 
     <throw id="51" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
     <throw id="50" name="java.io.IOException" java="java.io.IOException"/> 
     </method> 
     <method id="33" name="marshal" java="marshal" result="31"> 
     <param id="35" name="out" java="out" type="34"/> 
     <throw id="37" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
     <throw id="36" name="java.io.IOException" java="java.io.IOException"/> 
     </method> 
     <method id="52" name="marshalToString" java="marshalToString" result="28"> 
     <throw id="53" name="java.io.IOException" java="java.io.IOException"/> 
     <throw id="54" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
     </method> 
     </class> 
     <class id="26" java="ud1.Test_453220556.Env1.Element" type="nodeclass"/> 
     <class id="29" name="array of java.lang.String" java="java.lang.String[]" type="arraytype" base="28"/> 
     <class id="28" name="string" java="java.lang.String" type="baseclass"/> 
     <class id="31" name="void" java="void" type="primitive"/> 
     <node id="0" type="choice"> 
     <ref node="1" name="Test" javaName="Test" access="modify"/> 
     </node> 
     <node id="1" type="group" javaType="25" rootType="27"> 
     <prop name="public" type="boolean" value="false"/> 
     <prop name="top" type="boolean" value="true"/> 
     <ref node="2" name="Element" javaName="Element" access="modify"/> 
     </node> 
     <node id="2" type="group" javaType="26"> 
     <ref node="3" name="X" javaName="X" access="modify"/> 
     </node> 
     <node id="3" type="simple" javaType="4"/> 
    </overlay> 
    <overlay type="document"/> 
    <overlay type="origin"> 
     <node id="0"> 
     <prop name="mainPackage" value="ud1.Test_453220556."/> 
     <prop name="classNameBase" value="Test"/> 
     </node> 
     <node id="1"> 
     <prop name="rootClassName" value="ud1.Test_453220556.TestMainImpl.Root1"/> 
     <prop name="order" type="2" value="seq"/> 
     <prop name="nodeType" type="enum:array,delim,fixed,group,trans" value="group"/> 
     </node> 
     <node id="2"> 
     <prop name="order" type="2" value="seq"/> 
     <prop name="length" type="integer" value="10"/> 
     <prop name="nodeType" type="enum:array,delim,fixed,group,trans" value="fixed"/> 
     </node> 
     <node id="3"> 
     <prop name="align" type="3" value="blind"/> 
     <prop name="length" type="integer" value="10"/> 
     <prop name="nodeType" type="enum:array,delim,fixed,trans" value="fixed"/> 
     </node> 
    </overlay> 
    </order>

例子：我需要查询的属性值是在101行我不得不采取这是“3”所引用节点的节点ID在这个例子中：

<node id="2" type="group" javaType="26"> 
    <ref node="3" name="X" javaName="X" access="modify"/> 
    </node>

然后，我需要在XML进一步搜索，它应该找到ID =“3”节点，然后查找名为“长度”的属性，并将其返回值是“10 “在这个例子中：

<node id="3"> 
    <prop name="align" type="3" value="blind"/> 
    <prop name="length" type="integer" value="10"/> 
    <prop name="nodeType" type="enum:array,delim,fixed,trans" value="fixed"/> 
    </node>

我写了下面的XSLT代码，但需要添加一些更多的代码来获得正确的长度部分：

<?xml version="1.0" encoding="ISO-8859-1"?> 
<xsl:stylesheet version="1.0" 
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <xsl:template match="/"> 
     <html> 
     <body> 
     <h2>My OTD type</h2> 
     <table border="1"> 
      <tr bgcolor="#9acd32"> 
      <th>Name</th> 
      <th>Column Length</th> 
      </tr> 
      <xsl:for-each select="/order/overlay/node/ref"> 
      <tr> 
      <td><xsl:value-of select="@name" /></td> 

    <xsl:for-each select="/order/overlay[3]/node"> 
      <td><xsl:value-of select="props/@value" /></td> 
    </xsl:for-each> 

      </tr> 
      </xsl:for-each> 
     </table> 
     </body> 
     </html> 
    </xsl:template> 
    </xsl:stylesheet>

请建议如何得到期望的结果。

来源

2012-10-30 Raj

这种变换使用密钥的最大效率，并显示如何获得所需的值：

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
<xsl:output method="text"/> 

<xsl:key name="kNodeByTypeAndId" match="overlay/node" 
    use="concat(../@type,'+',@id)"/> 

<xsl:template match="/"> 
    <xsl:value-of select= 
     "key('kNodeByTypeAndId', 
      concat('origin+',key('kNodeByTypeAndId', 'structure+2')/ref/@node) 
      ) 
      /prop[@name='length']/@value 
    "/> 
</xsl:template> 
</xsl:stylesheet>

当这个变换所提供的XML文档应用：

<order main="0" state="ntype" otdType="SeeBeyond/eGate/OTDLead/UD1_0" 
identifier="Test/_453220556"> 
    <enum id="2" name="order" size="3"> 
     <item name="seq" value="0"/> 
     <item name="any" value="1"/> 
     <item name="mix" value="2"/> 
    </enum> 
    <enum id="3" name="align" size="8"> 
     <item name="blind" value="0"/> 
     <item name="begin" value="1"/> 
     <item name="exact" value="2"/> 
     <item name="final" value="3"/> 
     <item name="inter" value="4"/> 
     <item name="oneof" value="5"/> 
     <item name="regex" value="6"/> 
     <item name="super" value="7"/> 
    </enum> 
    <enum id="4" name="delimTerm" size="4"> 
     <item name="never" value="0"/> 
     <item name="allow" value="1"/> 
     <item name="cheer" value="2"/> 
     <item name="force" value="3"/> 
    </enum> 
    <enum id="5" name="delimKind" size="3"> 
     <item name="escape" value="0"/> 
     <item name="normal" value="1"/> 
     <item name="repeat" value="2"/> 
    </enum> 
    <enum id="6" name="nodeType" size="6"> 
     <item name="alter" value="0"/> 
     <item name="array" value="1"/> 
     <item name="delim" value="2"/> 
     <item name="fixed" value="3"/> 
     <item name="group" value="4"/> 
     <item name="trans" value="5"/> 
    </enum> 
    <overlay type="structure"> 
     <class id="34" name="com.stc.otd.runtime.OtdOutputStream" java="com.stc.otd.runtime.OtdOutputStream" type="baseclass"/> 
     <class id="4" name="java.lang.String" java="java.lang.String" type="baseclass"/> 
     <class id="39" name="com.stc.otd.runtime.OtdInputStream" java="com.stc.otd.runtime.OtdInputStream" type="baseclass"/> 
     <class id="43" name="byte" java="byte" type="primitive"/> 
     <class id="44" name="array of byte" java="byte[]" type="arraytype" base="43"/> 
     <class id="25" java="ud1.Test_453220556.Env1.Test" type="nodeclass"/> 
     <class id="27" java="ud1.Test_453220556.Test" type="nodeclass"> 
      <method id="55" name="unmarshalFromString" java="unmarshalFromString" result="31"> 
       <param id="56" name="in" java="in" type="28"/> 
       <throw id="57" name="java.io.IOException" java="java.io.IOException"/> 
       <throw id="58" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
      </method> 
      <method id="32" name="reset" java="reset" result="31"/> 
      <method id="59" name="setDecoding" java="setDecoding" result="31"> 
       <param id="60" name="code" java="code" type="28"/> 
      </method> 
      <method id="45" name="marshalToBytes" java="marshalToBytes" result="44"> 
       <throw id="46" name="java.io.IOException" java="java.io.IOException"/> 
       <throw id="47" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
      </method> 
      <method id="30" name="check" java="check" result="29"/> 
      <method id="65" name="setPostCoding" java="setPostCoding" result="31"> 
       <param id="66" name="code" java="code" type="28"/> 
      </method> 
      <method id="38" name="unmarshal" java="unmarshal" result="31"> 
       <param id="40" name="in" java="in" type="39"/> 
       <throw id="42" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
       <throw id="41" name="java.io.IOException" java="java.io.IOException"/> 
      </method> 
      <method id="63" name="setAnteCoding" java="setAnteCoding" result="31"> 
       <param id="64" name="code" java="code" type="28"/> 
      </method> 
      <method id="61" name="setEncoding" java="setEncoding" result="31"> 
       <param id="62" name="code" java="code" type="28"/> 
      </method> 
      <method id="48" name="unmarshalFromBytes" java="unmarshalFromBytes" result="31"> 
       <param id="49" name="in" java="in" type="44"/> 
       <throw id="51" name="com.stc.otd.runtime.UnmarshalException" java="com.stc.otd.runtime.UnmarshalException"/> 
       <throw id="50" name="java.io.IOException" java="java.io.IOException"/> 
      </method> 
      <method id="33" name="marshal" java="marshal" result="31"> 
       <param id="35" name="out" java="out" type="34"/> 
       <throw id="37" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
       <throw id="36" name="java.io.IOException" java="java.io.IOException"/> 
      </method> 
      <method id="52" name="marshalToString" java="marshalToString" result="28"> 
       <throw id="53" name="java.io.IOException" java="java.io.IOException"/> 
       <throw id="54" name="com.stc.otd.runtime.MarshalException" java="com.stc.otd.runtime.MarshalException"/> 
      </method> 
     </class> 
     <class id="26" java="ud1.Test_453220556.Env1.Element" type="nodeclass"/> 
     <class id="29" name="array of java.lang.String" java="java.lang.String[]" type="arraytype" base="28"/> 
     <class id="28" name="string" java="java.lang.String" type="baseclass"/> 
     <class id="31" name="void" java="void" type="primitive"/> 
     <node id="0" type="choice"> 
      <ref node="1" name="Test" javaName="Test" access="modify"/> 
     </node> 
     <node id="1" type="group" javaType="25" rootType="27"> 
      <prop name="public" type="boolean" value="false"/> 
      <prop name="top" type="boolean" value="true"/> 
      <ref node="2" name="Element" javaName="Element" access="modify"/> 
     </node> 
     <node id="2" type="group" javaType="26"> 
      <ref node="3" name="X" javaName="X" access="modify"/> 
     </node> 
     <node id="3" type="simple" javaType="4"/> 
    </overlay> 
    <overlay type="document"/> 
    <overlay type="origin"> 
     <node id="0"> 
      <prop name="mainPackage" value="ud1.Test_453220556."/> 
      <prop name="classNameBase" value="Test"/> 
     </node> 
     <node id="1"> 
      <prop name="rootClassName" value="ud1.Test_453220556.TestMainImpl.Root1"/> 
      <prop name="order" type="2" value="seq"/> 
      <prop name="nodeType" type="enum:array,delim,fixed,group,trans" value="group"/> 
     </node> 
     <node id="2"> 
      <prop name="order" type="2" value="seq"/> 
      <prop name="length" type="integer" value="10"/> 
      <prop name="nodeType" type="enum:array,delim,fixed,group,trans" value="fixed"/> 
     </node> 
     <node id="3"> 
      <prop name="align" type="3" value="blind"/> 
      <prop name="length" type="integer" value="10"/> 
      <prop name="nodeType" type="enum:array,delim,fixed,trans" value="fixed"/> 
     </node> 
    </overlay> 
</order>

想要的，正确的结果是：

来源

2012-10-30 21:02:59

此XPath应该工作：丙/ [@类型= “3”] /以下同胞

来源

2012-10-30 20:48:50 sino

XSLT查询 - 根据来自上一节点的属性查找值

回答

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