Qt 中sax方式 解析 xml文件

1 bool CSFCfgFileBase::LoadConfigFile( const QString &strCfgFile )

 {

	if( strCfgFile != "" )

	{

		m_strConfigFileName	= strCfgFile;

	}

	QFile file(m_strConfigFileName);

	if (!file.open(QFile::ReadOnly | QFile::Text))

	{

		return false;

	}

	file.seek( 0 );

	QXmlInputSource	xmlInputSource(&file);

	QXmlSimpleReader reader;

	reader.setContentHandler(this);

	reader.setErrorHandler(this);

	bool bResult = reader.parse( xmlInputSource );

	file.close();

	if( bResult )

	{

		InitAllFeatures();

		m_bCfgLoaded = true;

	}

	return m_bCfgLoaded;

 }

2.
bool CSFCfgFileValueExchange::startElement(const QString& namespaceURI, const QString& localName, const QString& qName, const QXmlAttributes& atts)
{
	if( m_eCurrentRoute == XRT_FEATURE && m_slParseRoute.size() == XRL_FEATURE )
	{
		if( qName == "ValueExchange" )
		{
			m_eCurrentRoute = XRT_FEATURE_VALUEEXCHANGE;
		}
		else
		{
			return CSFCfgFileClass::startElement( namespaceURI, localName, qName, atts );
		}
	}
	else if( m_eCurrentRoute == XRT_FEATURE_VALUEEXCHANGE && m_slParseRoute.size() == XRL_FEATURE_VALUEEXCHANGE )
	{
		if( qName == "ITEM" )
		{
			CSFCfgParserValueExchange::DS_ValueExchangeItem	dsItem;
			CSFCfgParserValueExchange::LoadValueExchangeItem( atts, &dsItem );
			GetCfgValueExchangesPtr()->push_back( dsItem );
		}
		else
		{
		}
	}
	else
	{
		return CSFCfgFileClass::startElement( namespaceURI, atts );
	}
	m_slParseRoute.append( qName );
	return true;
}


3.bool CSFCfgFileValueExchange::endElement(const QString& namespaceURI, const QString& qName)
 {
	if( m_slParseRoute.size() == XRL_FEATURE_VALUEEXCHANGE && m_eCurrentRoute == XRT_FEATURE_VALUEEXCHANGE && qName == "ValueExchange" )
	{
		m_eCurrentRoute = XRT_FEATURE;
	}
	else
	{
		return CSFCfgFileClass::endElement( namespaceURI, qName );
	}
	m_slParseRoute.removeLast();
	return true;
 }

（编辑：李大同）

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