VC操作XML文件

九零-鑫鑫

这几天，用VC写一个东西，要用到XML，可是网上XML的东西非常少，还大部分是JavaScript方面的。没办法，只能一点点查，一点点试，终有所获。XP+VC6:

[C++] 纯文本查看 复制代码

首先在系统中加入：

#import "msxml4.dll"
using namespace MSXML2;
然后就可以操作XML文件了。

1、创建xml文件

 ::CoInitialize(NULL); //初始化COM
 MSXML2::IXMLDOMDocumentPtr pDoc;
 MSXML2::IXMLDOMElementPtr xmlRoot;
 HRESULT hr = pDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30));
 if(!SUCCEEDED(hr))
 {
 MessageBox("Error");
 return;
 }
 pDoc->raw_createElement_x((_bstr_t)(char*)"capture", &xmlRoot);
 pDoc->raw_a(xmlRoot, NULL);
 MSXML2::IXMLDOMElementPtr childNode;
 pDoc->raw_createElement_x((_bstr_t)(char*)"bitmap", &childNode);
 xmlRoot->a(childNode);
 MSXML2::IXMLDOMElementPtr childNode2;
 pDoc->raw_createElement_x((_bstr_t)(char*)"bmp", &childNode2);
 childNode2->Puttext("01");
 childNode2->setAttribute("population", "7000");
 childNode2->setAttribute("area", "2000");
 childNode->a(childNode2);
 //pDoc->raw_createElement_x((_bstr_t)(char*)"video", &xmlRoot);
 pDoc->raw_createElement_x((_bstr_t)(char*)"video", &childNode);
 xmlRoot->a(childNode);
 pDoc->raw_createElement_x((_bstr_t)(char*)"avi", &childNode2);
 childNode2->Puttext("01");
 childNode2->setAttribute("population", "39999");
 childNode2->setAttribute("area", "3322");
 childNode->a(childNode2);
 pDoc->save("E:\\test.xml");
生成的XML文件内容如下：

<capture>
 <bitmap>
 <bmp population="7000" area="2000">01</bmp>
 </bitmap>
 <video>
 <avi population="39999" area="3322">01</avi>
 </video>
</capture>
2、浏览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"));//选中节点
 nodeList = childNode1->GetchildNodes();//子节点列表
// MSXML2::DOMNodeType nodeType;
// nodeList=pDoc->getElementsByTagName_r("avi");//获取所有名为avi的节点，可以在bitmap节中介入avi节实验

 MSXML2::IXMLDOMNamedNodeMapPtr pAttrs = NULL;
 MSXML2::IXMLDOMNodePtr pAttrItem;
 MSXML2::IXMLDOMNodePtr pAttrItem1;
 
long nCount, iCount;
 nodeList->get_length(&iCount); //获取节点个数
 BOOL bDel = FALSE;
 for(int i=0 ;i<iCount; i++) //根据需要可以添加数据到ListControl中
 {
childNode = nodeList->Getitem(i).Detach();//得到一个节点

childNode->get_attributes(&pAttrs);
 pAttrs->get_length(&nCount); //获取节点属性个数
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;
 }
 }

      希望大家多多支持 _(:з」∠)_

flowerqina

支持一下！

Carlton

支持下大牛 保存下来了

fjk1719

学习了 谢谢

chao181

楼主找到帮助文档了么？