我用下面的代碼來解析C++中的XML文件。 http://www.codeproject.com/Articles/176236/Parsing-an-XML-file-in-a-C-C-program。無法從C++中的XML解析類獲取字符串?
現在我想填寫hashmap中的數據。但無法做到這一點。錯誤說轉換不可能從BSTR的std :: string。
下面是部分代碼...
MSXML2::IXMLDOMNode *pIParentNode = NULL;
//Variables to store attribute's name,type and text:
BSTR bstrAttrName, bstrAttrType, bstrAttrText;
typedef std::tr1::unordered_map< std::string, std::string > hashmap;
hashmap numbers;
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";
pIDOMNode->get_nodeTypeString(&bstrNodeType);
//We process only elements (nodes of "element" type):
BSTR temp = L"element";
if (lstrcmp((LPCTSTR)bstrNodeType, (LPCTSTR)temp)==0)
{
pIDOMNode->get_nodeName(&bstrItemNode);
printf("Node: %ls\n", bstrItemNode);
pIDOMNode->get_text(&bstrItemText);
printf("Text: %ls\n", bstrItemText);
numbers[(std::string)bstrItemNode] = (std::string)bstrItemText; // Here error.. need string..
我嘗試以下,但只返回一個字符。
numbers[(char*)bstrItemNode] = (char*)bstrItemText; // return only 1 character..need whole string..
任何人都可以告訴我,我怎樣才能從這個類訪問字符串來填充hashmap?
錯誤是:
error C2440: 'type cast' : cannot convert from 'BSTR' to 'std::string'
1> No constructor could take the source type, or constructor overload resolution was ambiguous
1> : error C2440: 'type cast' : cannot convert from 'BSTR' to 'std::string'
1> No constructor could take the source type, or constructor overload resolution was ambiguous
請幫助我,我卡住了。任何替代方式也很感激。謝謝...
謝謝,它的作品完美。 – 2012-04-10 05:48:15