能够解析XML的程序.rar_XML 解析_xml_解析xml

#include "stdafx.h" #include<atlbase.h> #include <iostream.h> void readxml(CComBSTR bstrSS); void main() { int n=0; for(;;) { cout<<"------1.view name 2.view sex 3.view age 4.view class 5.exit-----"<<endl; cin>>n; if(n==1){ CComBSTR bstrSS = L"xmldata/xmlname"; readxml(bstrSS); } else if(n==2){ CComBSTR bstrSS = L"xmldata/xmlsex"; readxml(bstrSS); } else if(n==3){ CComBSTR bstrSS = L"xmldata/xmlage"; readxml(bstrSS); } else if(n==4){ CComBSTR bstrSS = L"xmldata/xmlclass"; readxml(bstrSS); } else if(n==5) exit(1); } } void readxml(CComBSTR bstrSS) { // 初始化COM接口 CoInitialize(NULL); try { // 通过智能指针创建一个解析器的实例 CComPtr <IXMLDOMDocument> spXMLDOM; HRESULT hr = spXMLDOM.CoCreateInstance(__uuidof(DOMDocument)); if(FAILED(hr)) throw "不能创建XML Parser对象"; if(spXMLDOM.p==NULL) throw "不能创建XML Parser对象"; //创建成功，开始装载XML文档 VARIANT_BOOL bSuccess = false; hr=spXMLDOM->load(CComVariant(L"xmldata.xml"),&bSuccess); if(FAILED(hr)) throw "不能够"; if(!bSuccess) throw "XML"; CComPtr <IXMLDOMNode> spXMLNode; hr =spXMLDOM->selectSingleNode(bstrSS,&spXMLNode); if (FAILED(hr)) throw "xmldata"; if (spXMLNode.p == NULL) throw "xmldata"; CComVariant varValue(VT_EMPTY); hr =spXMLNode->get_nodeTypedValue(&varValue); if(FAILED(hr)) throw "xmldata"; if(varValue.vt == VT_BSTR) { USES_CONVERSION; LPTSTR lpstrMsg = W2T(varValue.bstrVal); cout<< lpstrMsg <<endl; } else { throw "xmldata"; } } catch(...){cout << "xml" <<endl <<endl; } CoUninitialize(); }