xsl to convert xml to json

问题:

Input XML

<Root>
    <Result>
        <System>
            <Name>ABC</Name>
            <ID pname="PAD">
                <value>4567</value>
            </ID>
            <lastTime>2013-11-06T17:36:46.000-05:00</lastTime>
        </System>
        <line>Metals</line>
    </Result>
    <Result>
        <System>
            <Name>CAYS</Name>
            <ID pname="PAD">
                <value>MCIERT</value>
            </ID>
            <ID pname="ATPAD">
                <value>56412</value>
            </ID>
            <lastTime>2013-12-06T16:43:36.000-05:00</lastTime>
        </System>
        <System>
            <Name>CAYS</Name>
            <ID pname="CAD">
                <value>DGSG</value>
            </ID>
            <ID pname="ARCAD">
                <value>2847114</value>
            </ID>
            <lastTime>2013-12-07T20:02:38.000-05:00</lastTime>
        </System>
        <line>Minerals</line>
    </Result>
</Root>

Output Json

{
"Root": {
"Result": [
  {
    "System": {
      "Name": "ABC",
      "ID": {
        "pname": "PAD",
        "value": "4567"
      },
      "lastTime": "2013-11-06T17:36:46.000-05:00"
    },
    "line": "Metals"
  },
  {
    "System": [
      {
        "Name": "CAYS",
        "ID": [
          {
            "pname": "PAD",
            "value": "MCIERT"
          },
          {
            "pname": "ATPAD",
            "value": "56412"
          }
        ],
        "lastTime": "2013-12-06T16:43:36.000-05:00"
      },
      {
        "Name": "CAYS",
        "ID": [
          {
            "pname": "CAD",
            "value": "DGSG"
          },
          {
            "pname": "ARCAD",
            "value": "2847114"
          }
        ],
        "lastTime": "2013-12-07T20:02:38.000-05:00"
      }
    ],
    "line": "Minerals"
  }
]
}
}

How to write the generic xslt stylesheet which will convert input xml to json

Input might have so many Results under root, Systems and Names under results and also ID name and the values under systems.

回答1:

The below XSLT which I copied and pasted from here should help you to convert XML to JSON. Thanks :)

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

<xsl:template match="/">{
    <xsl:apply-templates select="*"/>}
</xsl:template>

<!-- Object or Element Property-->
<xsl:template match="*">
    "<xsl:value-of select="name()"/>" :<xsl:call-template name="Properties">
        <xsl:with-param name="parent" select="'Yes'"> </xsl:with-param>
    </xsl:call-template>
</xsl:template>

<!-- Array Element -->
<xsl:template match="*" mode="ArrayElement">
    <xsl:call-template name="Properties"/>
</xsl:template>

<!-- Object Properties -->
<xsl:template name="Properties">
    <xsl:param name="parent"></xsl:param>
    <xsl:variable name="childName" select="name(*[1])"/>
    <xsl:choose>            
        <xsl:when test="not(*|@*)"><xsl:choose><xsl:when test="$parent='Yes'"> <xsl:text>&quot;</xsl:text><xsl:value-of select="."/><xsl:text>&quot;</xsl:text></xsl:when>
                <xsl:otherwise>"<xsl:value-of select="name()"/>":"<xsl:value-of  select="."/>"</xsl:otherwise>
            </xsl:choose>           
        </xsl:when>                
        <xsl:when test="count(*[name()=$childName]) > 1">{ "<xsl:value-of  select="$childName"/>" :[<xsl:apply-templates select="*" mode="ArrayElement"/>] }</xsl:when>
        <xsl:otherwise>{
            <xsl:apply-templates select="@*"/>
            <xsl:apply-templates select="*"/>
            }</xsl:otherwise>
    </xsl:choose>
    <xsl:if test="following-sibling::*">,</xsl:if>
</xsl:template>

<!-- Attribute Property -->
<xsl:template match="@*">"<xsl:value-of select="name()"/>" : "<xsl:value-of select="."/>",
</xsl:template>
</xsl:stylesheet>