C++ IXMLDOMNode::get_nodeTypeString方法代码示例

void XmlParser::Parse(NodeCallback callback, void *data)
{
	MSXML2::IXMLDOMNodeListPtr NodeListPtr;
	BSTR strFindText  = L" ";
	MSXML2::IXMLDOMNode *pIDOMNode = NULL;
	BSTR bstrNodeType;

	assert(m_domDocument != NULL);

	NodeListPtr = m_domDocument->getElementsByTagName(strFindText);	

	for(int i = 0; i < NodeListPtr->length; i++)
	{
		if (pIDOMNode)
			pIDOMNode->Release();

		NodeListPtr->get_item(i, &pIDOMNode);
		pIDOMNode->get_nodeTypeString(&bstrNodeType);

		if (lstrcmp((LPCTSTR)bstrNodeType, (LPCTSTR)L"element") != 0)
			continue;
		
		XmlNode node;
		_parseNode(pIDOMNode, node);
		
		if (callback(node, data) == false)
			break;
	}

	if (pIDOMNode)
			pIDOMNode->Release();	
}

void XmlParser::_parseNodeGetText(MSXML2::IXMLDOMNode *pIDOMNode, XmlNode& node)
{	
	MSXML2::IXMLDOMNode* ppFirstChild;
	BSTR bstrNodeType;

	pIDOMNode->get_firstChild(&ppFirstChild);
	
	if (ppFirstChild == NULL)
		return;
	
	ppFirstChild->get_nodeTypeString(&bstrNodeType);

	if (lstrcmp((LPCTSTR)bstrNodeType, (LPCTSTR)L"text") == 0 ||
		(lstrcmp((LPCTSTR)bstrNodeType, (LPCTSTR)L"cdatasection") == 0))
	{
		BSTR bstrItemText;

		ppFirstChild->get_text(&bstrItemText);
		node.SetText(wstring(bstrItemText));
	}
}

void XMLDOMParsingNodes(char *szFileName)
{

   try 
   {
	   //Qualify namespase explicitly to avoid Compiler Error C2872 "ambiguous symbol" during linking.
	   //Now Msxml2.dll use the "MSXML2" namespace
	   //(see http://support.microsoft.com/default.aspx?scid=kb;en-us;316317):
	   MSXML2::IXMLDOMDocumentPtr docPtr;//pointer to DOMDocument object
	   MSXML2::IXMLDOMNodeListPtr NodeListPtr;//indexed access. and iteration through the collection of nodes
	   MSXML2::IXMLDOMNodePtr DOMNodePtr;//pointer to the node

	   MSXML2::IXMLDOMNode *pIDOMNode = NULL;//pointer to element's node
	   MSXML2::IXMLDOMNode *pIParentNode = NULL;//pointer to parent node
	   MSXML2::IXMLDOMNode *pIAttrNode = NULL;//pointer to attribute node
	   MSXML2::IXMLDOMNamedNodeMapPtr DOMNamedNodeMapPtr;//iteration through the collection of attribute nodes
	   MSXML2::IXMLDOMNodeList *childList=NULL;//node list containing the child nodes
	  
	 
	  //Variable with the name of node to find: 
	  BSTR strFindText  = L" ";//" " means to output every node

	  //Variables to store item's name, parent, text and node type:
	  BSTR bstrItemText,bstrItemNode, bstrItemParent,bstrNodeType;

	 //Variables to store attribute's name,type and text:	 
	  BSTR bstrAttrName, bstrAttrType, bstrAttrText;

	  HRESULT hResult;
	  
	  int i = 0;//loop-index variable
	  int n = 0;//lines counter
      

	  //Initialize COM Library:
      CoInitialize(NULL);

	 //Create an instance of the DOMDocument object:
      docPtr.CreateInstance(__uuidof(DOMDocument30));
		
      // Load a document:
	  _variant_t varXml(szFileName);//XML file to load
      _variant_t varResult((bool)TRUE);//result 
      
	  varResult = docPtr->load(varXml);

      if ((bool)varResult == FALSE)
	  {
		 //printf("*** Error:failed to load XML file. ***\n");
		 MessageBox(0,"Error: failed to load XML file. Check the file name.", \
			 "Load XML file",MB_OK |MB_ICONWARNING);
         return;
	  }

	  //Collect all or selected nodes by tag name:
	  NodeListPtr = docPtr->getElementsByTagName(strFindText);
  
	  //Output the number of nodes:
	  //printf("Number of nodes: %d\n", (NodeListPtr->length));

	  //Output root node:
	  docPtr->documentElement->get_nodeName(&bstrItemText);
	  //%ls formatting is for wchar_t* parameter's type (%s for char* type):
	  printf("\nRoot: %ls\n", bstrItemText);	
	  

	  for(i = 0; i < (NodeListPtr->length); i++)
	  {
		
			if (pIDOMNode) pIDOMNode->Release();			
			NodeListPtr->get_item(i, &pIDOMNode);
			
			
			if(pIDOMNode )
			{				
					
				pIDOMNode->get_nodeTypeString(&bstrNodeType);
				
				//We process only elements (nodes of "element" type): 
				BSTR temp = L"element";
			
				if (lstrcmp((LPCTSTR)bstrNodeType, (LPCTSTR)temp)==0) 
				{
					n++;//element node's number
					printf("\n\n%d\n", n);//element node's number
					printf("Type: %ls\n", bstrNodeType);

					pIDOMNode->get_nodeName(&bstrItemNode);
					printf("Node: %ls\n", bstrItemNode);				
								 
					pIDOMNode->get_text(&bstrItemText);
					printf("Text: %ls\n", bstrItemText);
					
					pIDOMNode->get_parentNode(&pIParentNode);
					pIParentNode->get_nodeName(&bstrItemParent);
					printf("Parent: %ls\n",bstrItemParent);
					
			
					pIDOMNode->get_childNodes(&childList);
					printf("Child nodes: %d\n", (childList->length));
//.........这里部分代码省略.........