XMLStreamReaderToXMLStreamWriter.java 文件源码

/**
 * Writes out the {@code i}-th attribute of the current element.
 *
 * <p>
 * Used from {@link #handleStartElement()}.
 */
protected void handleAttribute(int i) throws XMLStreamException {
    String nsUri = in.getAttributeNamespace(i);
    String prefix = in.getAttributePrefix(i);
     if (fixNull(nsUri).equals(XMLConstants.XMLNS_ATTRIBUTE_NS_URI)) {
         //Its a namespace decl, ignore as it is already written.
         return;
     }

    if(nsUri==null || prefix == null || prefix.equals("")) {
        out.writeAttribute(
            in.getAttributeLocalName(i),
            in.getAttributeValue(i)
        );
    } else {
        out.writeAttribute(
            prefix,
            nsUri,
            in.getAttributeLocalName(i),
            in.getAttributeValue(i)
        );
    }
}