使用Java删除xml中除replaceall以外的所有命名空间

Question

I want to remove all the namespaces in xml document using java, is there a efficient way to do it other than replace all method?

Thanks in advance. Sushma.

Answer 1

Removing the namespace declarations using regex processing is probably feasible provided you don't care about the small probability of matching something that isn't actually a namespace declaration (eg inside a comment or CDATA section). Removng the prefixes from element and attribute names is more tricky. Why not do it the easy way, using XSLT? It just needs a simple 2-rule stylesheet:

<xsl:template match="*">
  <xsl:element name="{local-name()}">
    <xsl:apply-templates select="*|@*"/>
  </xsl:element>
</xsl:template>

<xsl:template match="@*">
  <xsl:attribute name="{local-name()}">
    <xsl:value-of select=."/>
  </xsl:attribute>
</xsl:template>

You can add further rules if you find you need to do more than this, eg keeping the namespaces on xml:base or xsi:schemaLocation attributes.