Node node = new Node(); node.appendChild( att_id );
先确认你的错误不在这三种情况之中 1.DOMException - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to append is one of this node's ancestors or this node itself. 2.WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node. 3.NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly or if the previous parent of the node being inserted is readonly.
node.appendChild( att_id );
1.DOMException - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to append is one of this node's ancestors or this node itself.
2.WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
3.NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly or if the previous parent of the node being inserted is readonly.
setAttributeNode 方法是哪个类的
这句话前面的Node 为说明用
*
* @param node
* @param nAttID
* @param xmlFile
*/
protected static void addAttribute( String strXmlFile,String strNode, int nAttID )
{
Document doc = WriteXml.getDocument( strXmlFile ); //get node in which new columns are inserted into
Element node = (Element)WriteXml.getChildNode( doc,strNode ); Attr att_id = doc.createAttribute( ATT_ID + nAttID );
Attr att_len = doc.createAttribute( ATT_LEN + nAttID );
Attr att_dt = doc.createAttribute( ATT_DT + nAttID );
Attr att_header = doc.createAttribute( ATT_HEADER + nAttID ); att_id.setNodeValue( "value_instr_" + nAttID );
att_len.setNodeValue( "8" );
att_dt.setNodeValue( "Char" );
att_header.setNodeValue( "" ); node.setAttributeNode( att_id ) ;
node.setAttributeNode( att_len );
node.setAttributeNode( att_dt );
node.setAttributeNode( att_header ); try
{
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer(); /* method one*/
//java.util.Properties prop = transformer.getOutputProperties();
//prop.setProperty( OutputKeys.ENCODING, "GB2312" );
//prop.setProperty( OutputKeys.METHOD, "xml" );
//prop.setProperty( OutputKeys.INDENT, "yes" );
//transformer.setOutputProperties( prop ); /*method 2*/
//OutputFormat formater = new OutputFormat( doc,"GB2312",true );
DOMSource source = new DOMSource( doc );
File xmlFile = new File( strXmlFile );
StreamResult result = new StreamResult( xmlFile ); transformer.transform( source, result );
}
catch( Exception ex )
{
ex.printStackTrace();
}
}