1、安裝MSXML 4.0 SP2。在VC6中建立一個基於Dialog的工程。如圖:
在界面上放置3個編輯框、1個按鈕控件。其中屬性設置如下。
編輯框:
ID | Category | Variable Type | Variable Name |
IDC_ID | Value | CString | m_strId |
IDC_AUTHOR | Value | CString | m_strAuthor |
IDC_TITLE | Value | CString | m_strTitle |
ID | Caption |
IDC_GENERATE | Generate |
IDC_LOAD | Load |
2、在StdAfx.h中引入動態鏈接庫 MSXML.DLL(C:/windows/system32/msxml4.dll)
3.在我們要操作XML的cpp文件開始部分加入:
using namespace MSXML2;
4、雙擊Generate按鈕,在消息處理函數中添加如下代碼:
::CoInitialize(NULL); //初始化COM
MSXML2::IXMLDOMDocumentPtr pDoc;
MSXML2::IXMLDOMElementPtr xmlRoot ;
//創建DOMDocument對象
HRESULT hr = pDoc.CreateInstance(__uuidof(MSXML2::DOMDocument40));
if(!SUCCEEDED(hr))
{
MessageBox("無法創建DOMDocument對象,請檢查是否安裝了MS XML Parser 運行庫!");
return ;
}
//根節點的名稱爲Book
//創建元素並添加到文檔中
xmlRoot=pDoc->createElement((_bstr_t)"Book ");
//設置屬性
xmlRoot->setAttribute("id",( const char * )m_strId);
pDoc->appendChild(xmlRoot);
MSXML2::IXMLDOMElementPtr pNode;
//添加“author”元素
pNode=pDoc->createElement((_bstr_t)"Author ");
pNode->Puttext((_bstr_t)(const char *)m_strAuthor);
xmlRoot->appendChild(pNode);
//添加“Title”元素
pNode=pDoc->createElement("Title ");
pNode->Puttext((const char *)m_strTitle);
xmlRoot->appendChild(pNode);
//保存到文件
//如果不存在就建立,存在就覆蓋
pDoc->save("d://he.xml");
雙擊Load按鈕,在消息處理函數中添加如下代碼:
HRESULT hr;
hr=pDoc.CreateInstance(__uuidof(MSXML2::DOMDocument40));
if(FAILED(hr))
{
MessageBox("無法創建DOMDocument對象,請檢查是否安裝了MS XML Parser 運行庫!");
return ;
}
//加載文件
pDoc->load("d://he.xml");
MSXML2::IXMLDOMNodePtr pNode;
//在樹中查找名爲Book的節點,"//"表示在任意一層查找
pNode=pDoc->selectSingleNode("//Book ");
MSXML2::DOMNodeType nodeType;
//得到節點類型
pNode->get_nodeType(&nodeType);
//節點名稱
CString strName;
strName=(char *)pNode->GetnodeName();
//節點屬性,放在鏈表中
MSXML2::IXMLDOMNamedNodeMapPtr pAttrMap=NULL;
MSXML2::IXMLDOMNodePtr pAttrItem;
_variant_t variantvalue;
pNode->get_attributes(&pAttrMap);
long count;
count=pAttrMap->get_length(&count);
pAttrMap->get_item(0,& pAttrItem);
//取得節點的值
pAttrItem->get_nodeTypedValue(&variantvalue);
m_strId=(char *)(_bstr_t)variantvalue;
UpdateData(FALSE);
瀏覽XML
::CoInitialize(NULL); //初始化COM
MSXML2::IXMLDOMDocumentPtr pDoc;
HRESULT hr = pDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30));
if(!SUCCEEDED(hr))
{
MessageBox("Error!");
return;
}
pDoc->load("E:\\test.xml");
MSXML2::IXMLDOMElementPtr childNode;
MSXML2::IXMLDOMElementPtr childNode1;
MSXML2::IXMLDOMNodeListPtr nodeList;
MSXML2::IXMLDOMNodeListPtr nodeList1;
childNode1 = (MSXML2::IXMLDOMElementPtr)(pDoc->selectSingleNode("//video"));//選中節點
nodeList = childNode1->GetchildNodes();//子節點列表
// MSXML2::DOMNodeType nodeType;
// nodeList=pDoc->getElementsByTagName_r("avi");//獲取所有名爲avi的節點,可以在bitmap節中介入avi節實驗
MSXML2::IXMLDOMNamedNodeMapPtr pAttrs = NULL;
MSXML2::IXMLDOMNodePtr pAttrItem;
MSXML2::IXMLDOMNodePtr pAttrItem1;
long nCount, iCount;
nodeList->get_length(&iCount); //獲取節點個數
BOOL bDel = FALSE;
for(int i=0 ;i<iCount; i++) //根據需要可以添加數據到ListControl中
{
childNode = nodeList->Getitem(i).Detach();//得到一個節點
childNode->get_attributes(&pAttrs);
pAttrs->get_length(&nCount); //獲取節點屬性個數
nodeList->get_item(i, &pAttrItem1);
for(int j = 0; j < nCount; j++)
{
pAttrs->get_item(j, &pAttrItem);
CString strAttrName = (char*)(_bstr_t)pAttrItem->nodeName;
CString strAttrValue = (char*)(_bstr_t)pAttrItem1->nodeTypedValue;
}
}