Written in C ++ using the DOM XML documents

#import <msxml4.dll>

void Exit()
{
CoUninitialize();
}

main int (int argc, char * the argv [])
{
the CoInitialize (NULL); // initialize the COM environment
atexit (Exit);

MSXML2::IXMLDOMDocumentPtr pDOMDoc;

pDOMDoc.CreateInstance (__ uuidof (MSXML2 :: DOMDocument40)); // create an object XMLDOMDocument

MSXML2::IXMLDOMProcessingInstructionPtr pDOMPI=pDOMDoc->createProcessingInstruction("xml", "version=\"1.0\""); // 创建XML声明

pDOMDoc-> appendChild (pDOMPI); // add an XML declaration

MSXML2::IXMLDOMElementPtr pDOMRoot;

       pDOMDoc-> raw_createElement ((_ bstr_t) "China", & pDOMRoot); // Create [root] node
       pDOMRoot-> setAttribute ( "Area", "3600000"); // Set [root] node attribute
       pDOMDoc-> appendChild (pDOMRoot ); // add a root node to the Document

MSXML2::IXMLDOMElementPtr pDOMNode;

       pDOMDoc-> raw_createElement ((_ bstr_t) "City", & pDOMNode);
       pDOMNode-> Puttext ( "Chongqing"); // node assignment
       pDOMRoot-> appendChild (pDOMNode); // add a child node to [root] node

       pDOMDoc->raw_createElement((_bstr_t)"City", &pDOMNode);
       pDOMNode->Puttext("Beijing");
       pDOMRoot->appendChild(pDOMNode);

pDOMDoc-> save ( "Test.xml"); // store XML Document

return 0;
}

-------------------------------------------------- --------------------------- present xml based on the read xml

CoInitialize(NULL);
    CComPtr<IXMLDOMDocument> spXmldoc;
    HRESULT hr = spXmldoc.CoCreateInstance(L"MSXML2.DOMDocument.6.0");

    if(SUCCEEDED(hr))
    {
        VARIANT_BOOL isSuccessFul;
        CComVariant varXmlFile(L"tlacd.xml");

        //spXmldoc->put_async(VARIANT_FALSE);
        HRESULT hr= spXmldoc->load(varXmlFile, &isSuccessFul);

        if(isSuccessFul==VARIANT_TRUE)
        {
            CComBSTR bstrXml;
            CComPtr<IXMLDOMElement> spRoot=NULL;
            CComPtr<IXMLDOMElement> spTheBook=NULL;
            CComPtr<IXMLDOMElement> spTheElem=NULL;
            CComPtr<IXMLDOMNode> spNewNode=NULL;

            hr = spXmldoc->get_documentElement(&spRoot);
            spRoot->get_xml(&bstrXml);
            AfxMessageBox(L"1, 原始的XML");
            AfxMessageBox(bstrXml);

            spXmldoc->createElement(L"book", &spTheBook);
            spXmldoc->createElement(L"name", &spTheElem);
            spXmldoc->put_text(L"新书");
spTheBook->appendChild(spTheElem, &spNewNode);
            spTheElem.Release();
            spNewNode.Release();

            spXmldoc->createElement(L"price", &spTheElem);
            spTheElem->put_text(L"20");
            spTheBook->appendChild(spTheElem, &spNewNode);

The CComPtr <the IXMLDOMNode> spTheNode = NULL;
            spRoot-> the selectSingleNode (L "/ Books / Book [name = 'Harry Potter']", & spTheNode);
            HR = spTheNode.QueryInterface (& spTheBook);
            spTheNode.Release ();

            spTheBook- > get_xml (& bstrXml);
            AfxMessageBox (L "3," Harry Potter "in XML");
            AfxMessageBox (bstrXml);

            //// --- this time to modify the price of the book -----
CComPtr <IXMLDOMNodeList > spNodeList = NULL;
            the CComPtr <the IXMLDOMNode> SPListItem = NULL;
            spTheBook-> get_childNodes (& spNodeList);
            spNodeList-> get_Item (. 1, & SPListItem);
            spNodeList.Release ();
            spListItem->put_text(L"15");

            //// want to add an additional attribute --- id, value ---- B01
the CComVariant varId (L "B01");
            spTheBook-> the setAttribute (L "ID", varId);
            varId.Clear ();

            spTheBook-> get_xml (& bstrXml);
            spTheBook.Release ();
            AfxMessageBox (L ". 4, to" Harry Potter "modifications are complete.");
AfxMessageBox (bstrXml);
            //// --- to "Harry Potter" modifications are complete. ----

//// --- use the id attribute to delete "Three Kingdoms" this book ----
spRoot-> the selectSingleNode (L "/ Books / Book [@ id = 'B02']", & spTheNode) ;
            HR = spTheNode.QueryInterface (& spTheBook);
            spTheNode.Release ();

            spTheBook-> get_xml (& bstrXml);

            AfxMessageBox (bstrXml);

            the CComPtr <the IXMLDOMNode> spParentNode = NULL;
            spTheBook-> get_parentNode (& spParentNode);
            spParentNode-> the removeChild (spTheBook, & spTheNode);
            spTheNode.Release ();
            spParentNode.Release ();
            spTheBook.Release ();

            spRoot -> get_xml (& bstrXml);
            AfxMessageBox (L "6, delete" "XML after the" Three Kingdoms);
            AfxMessageBox (bstrXml);

            //// --- then all book prices below 10 deleted ----
spRoot-> the selectNodes (L "/ Books / Book [. price <10]", & spNodeList);
            CComQIPtr <IXMLDOMSelection> spSomeBooks = spNodeList;
            spNodeList.Release();

            spSomeBooks-> removeAll ();
            spSomeBooks.Release ();

            spXmldoc-> get_xml (& bstrXml);
            AfxMessageBox (L ". 7, the book 10 has been removed is less than the price");
AfxMessageBox (bstrXml);

            spRoot.Release ();
            bstrXml .Empty ();

            // spXmldoc-> the save (varXmlFile); // save xml.
}
VarXmlFile.ClearToZero ();
    }

    spXmldoc.Release ();

    the CoUninitialize ();

ON. Posted 2011-11-23 17:10 the On at The Way reading ( ... ) Comments ( ... ) edit collections

Reproduced in: https: //www.cnblogs.com/areliang/archive/2011/11/23/2260566.html

Written in C ++ using the DOM XML documents

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