MFC下XML遍历同名节点（Node）

主要还是弄清Nodelist和Node的关系。

 1 #include <iostream>
 2 #include <tchar.h>
 3 
 4 #import <msxml3.dll>
 5 
 6 int _tmain(int argc, _TCHAR* argv[])
 7 {
 8 CoInitialize(NULL);
 9 //读取XML
10 MSXML2::IXMLDOMDocumentPtr spXMLDoc;
11 spXMLDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30));
12 spXMLDoc->load(L"config.xml");
13 MSXML2::IXMLDOMElementPtr spRoot = spXMLDoc->documentElement; //根节点
14 
15 //写入XML
16 MSXML2::IXMLDOMNodePtr spNewNode = spRoot->selectSingleNode(L"/Win-DMS/SharedFolders")->appendChild(
17 spXMLDoc->createNode(_variant_t(NODE_ELEMENT), L"Folder", L"")
18 ); 
19 spNewNode->text = L"D:\\123456\\";
20 spXMLDoc->save(_variant_t(L"config.xml"));
21 
22 MSXML2::IXMLDOMNodeListPtr nolistptr = NULL;
23 spNewNode->get_childNodes(&nolistptr);
24 
25 for (int i =0; i <nolistptr->Getlength(); i++)
26 {
27     MSXML2::IXMLDOMNodePtr nodeptr = NULL;
28     nodeptr = nolistptr->Getitem(i);
29     std::cout << "\tnodeValue: " << _bstr_t(nodeptr->nodeValue);
30     std::cout << std::endl;
31 }
32 
33 spNewNode.Release();
34 //spNodeList.Release();
35 spRoot.Release();
36 spXMLDoc.Release();
37 CoUninitialize();
38 
39 system("pause");
40 return 0;
41 }

判断是否有相同的元素，如果没有就加入到配置文件中去：

 1 　　　　 MSXML2::IXMLDOMDocumentPtr spXMLDoc;
 2         spXMLDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30));
 3         spXMLDoc->load(L"config.xml");
 4         MSXML2::IXMLDOMElementPtr spRoot = spXMLDoc->documentElement; 
 5         MSXML2::IXMLDOMNodePtr spShareNode = spRoot->selectSingleNode(L"/Win-DMS/SharedFolders");
 6         MSXML2::IXMLDOMNodeListPtr FolderListPtr = NULL;
 7         spShareNode->get_childNodes(&FolderListPtr);
 8         MSXML2::IXMLDOMNodePtr FolderNodePtr = NULL;
 9         long len = FolderListPtr->Getlength();
10         for (int i =0; i <len; i++)
11         {
12             FolderNodePtr = FolderListPtr->Getitem(i);
13             BSTR text = FolderNodePtr->Gettext();
14             if(!lstrcmp((LPCWSTR)text ,szPath))
15             {
16                 isSaved = TRUE;
17                 break;
18                 //AfxMessageBox(L"该目录已经在列表中……");    
19             }
20         }
21         if(isSaved == FALSE)
22         {
23             m_OwnerListBox->Add(szPath,  AfxGetApp()->LoadIcon(IDI_FOLDER));
24             //读取XML
25             MSXML2::IXMLDOMNodePtr spNewNode = spRoot->selectSingleNode(L"/Win-DMS/SharedFolders")->appendChild(
26                 spXMLDoc->createNode(_variant_t(NODE_ELEMENT), L"Folder", L"")
27                 ); 
28             spNewNode->text = szPath;
29             spXMLDoc->save(_variant_t(L"config.xml"));
30 　　　　　}