XSLT输出不显示

Question

I am a novice to XSLT. I am trying to generate a text file from an XSLT. When I run XSLT against the input XML using XALAN parser, the text file generates without an output.

This is the XSLT

<xsl:stylesheet version="2.0"
            xmlns:xs="http://www.w3.org/2001/XMLSchema"
            xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
<xsl:output method="text" />

<xsl:template match="/">
    <xsl:variable name="cities" as="xs:string*">
         <xsl:sequence select="addressbook/address/city" />
         <xsl:sequence select="'Virginia'" />
    </xsl:variable>
    <xsl:text>These are some of the cities:&#xA;&#xA;</xsl:text>
    <xsl:value-of select="$cities" separator="&#xA;" />
</xsl:template>

This is the XML

<?xml version="1.0" ?>
<addressbook>
 <address>
    <name>Peter Thompson</name>
    <stree>3456 South Blvd.</stree>
    <city>Chicago</city>
    <state>IL</state>
    <zip-code>34678</zip-code>
 </address>

 <address>
    <name>Jason Thompson</name>
    <stree>3456 Fort Main</stree>
    <city>South Carolina</city>
    <state>NC</state>
    <zip-code>67878</zip-code>
 </address>

I try to compile it in this way:

java -classpath ~/Downloads/xalan/xalan.jar org.apache.xalan.xslt.Process -in cities.xml -xsl cities.xsl -out citiesop.txt

The cities.txt file is generated with just the output:

These are some of the cities.

Please assist me to understand what is wrong here.

Answer 1

Xalan only supports XSLT 1.0. Due to version="2.0" it uses relaxed rules for syntax checking and simply ignores the <xsl:sequence> elements. Therefore your variable cities is empty.

For this stylesheet you need to use a XSLT 2.0 engine, like Saxon.

Answer 2

Just rewrite it in XSLT 1.0:

<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
<xsl:output method="text" />

<xsl:template match="/">
    <xsl:text>These are some of the cities:&#xA;&#xA;</xsl:text>
    <xsl:for-each select="addressbook/address/city" >
        <xsl:value-of select="."/>
        <xsl:text>&#xA;</xsl:text>
    </xsl:for-each>
    <xsl:text>Virginia</xsl:text>
</xsl:template>

</xsl:stylesheet>

---

PS South Carolina and Virginia are states , not cities .