Spring Integration xslt-transformer doesn't work with namespace - spring

Question

I use Spring Integration:
<int-xml:xslt-transformer input-channel="partnerTransformation"
output-channel="serviceChannel"
xsl-resource="classpath:/META-INF/vendorTransformerXml.xsl"/>
The input XML message:
<ns1:persons xmlns:ns1="http://com.test.xslt/test" xmlns:ns3="http://universal.consumerrequest.schema.model.tci.ca">
<ns3:person>
<ns3:name>John</ns3:name>
<ns3:family>Smith</ns3:family>
</ns3:person>
<ns3:person>
<ns3:name>Raza</ns3:name>
<ns3:family>Abbas</ns3:family>
</ns3:person>
and the XSLT:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:ns1="http://com.test.xslt/test" xmlns:ns3="http://universal.consumerrequest.schema.model.tci.ca">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:for-each select="ns1:persons/ns3:person">
<xsl:value-of select="ns3:family"/>
<xsl:value-of select="ns3:name"/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
it doesn't work, but it works well without namesapce, appreciate if you can help.

Answer 1

The problem is the way Java XML parsers handle namespaces by default. There's a few things you can do:
Convert the input XML to a String before feeding it to the XSLT transformer. This works fine in my testing
If you are building the document yourself, e.g.
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
Document doc = dbf.newDocumentBuilder().parse(...);
If you don't have to worry about namespaces, probably the easiest thing is to change your XSLT:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ns1="http://com.test.xslt/test"
xmlns:ns3="http://universal.consumerrequest.schema.model.tci.ca">
<xsl:output method="text" />
<xsl:template match="/">
<xsl:for-each select="//*[local-name()='person']">
<xsl:value-of select="*[local-name()='family']" />
<xsl:value-of select="*[local-name()='name']" />
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>