XML实例入门2

工具：notepad++、VS2008(MSXML6.0)

来自msdn的例子（经过修改，因为升级到MSXML6.0，有些关键字不太一样了），

需要文件books.xml，books.vsd（博客只支持xml文件，vsd修改后缀就可以）

 #include <stdio.h>
 #import <msxml6.dll>
 using namespace MSXML2;

 int main(int argc, char* argv[])
 {
     HRESULT hr;

     CoInitialize(NULL);

     IXMLDOMDocument3Ptr pXMLDoc;
     hr = pXMLDoc.CreateInstance(__uuidof(DOMDocument60));
     if (FAILED(hr)) {
         printf("Failed to CreateInstance on an XML DOM");
         return -;
     }
     pXMLDoc->async = VARIANT_FALSE;
     pXMLDoc->validateOnParse = VARIANT_FALSE;
     hr = pXMLDoc->setProperty("MultipleErrorMessages", VARIANT_TRUE);
     if (FAILED(hr)){
         printf("Failed to enable mulitple validation errors\n");
         return -;
     }
     if(pXMLDoc->load("..\\books.xml")!=VARIANT_TRUE){
         printf("Failed to load DOM from books.xml. %s\n",
             (LPCSTR)pXMLDoc->parseError->reason);
         return -;
     }

     IXMLDOMDocument3Ptr pXSDDoc;
     hr = pXSDDoc.CreateInstance(__uuidof(DOMDocument60));
     if (FAILED(hr)) {
         printf("Failed to CreateInstance on an XSD Doc");
         return -;
     }
     pXSDDoc->async = VARIANT_FALSE;
     pXSDDoc->validateOnParse = VARIANT_FALSE;
     if(pXSDDoc->load("..\\books.xsd")!=VARIANT_TRUE){
         printf("Failed to load XSD from books.xsd. %s\n",
             (LPCSTR)pXSDDoc->parseError->reason);
         return -;
     }

     IXMLDOMSchemaCollectionPtr pSCache;
     hr = pSCache.CreateInstance(__uuidof(XMLSchemaCache60));
     if (FAILED(hr)) {
         printf("Cannot instantiate XMLSchemaCache50\n");
         return -;
     }
     pXMLDoc->schemas = pSCache.GetInterfacePtr();

     hr = pSCache->add("urn:books", pXSDDoc.GetInterfacePtr());
     if (FAILED(hr)) {
         printf("Cannot add 'urn:books' to schema cache.\n");
         return -;
     }

     printf("Validating DOM...\n");
     // Validate the entire DOM object.
     IXMLDOMParseError2Ptr pError =pXMLDoc->validate();
     if (pError->errorCode != ) {
         printf("invalid dom:\n\treason:\n%s",
             (LPCSTR)pError->reason);
         printf("\terrorXPath:\n%s",
             (LPCSTR)pError->errorXPath);
         printf("\nParameters Count: %d\n",
             pError->errorParametersCount);

         for (int i=; i<pError->errorParametersCount; i++){
             printf("\terrorParameters(%d): %s\n",
                 i, (LPCSTR)pError->errorParameters(i));
         }
      }else{
         printf("\tDOM is valid:\n%s\n",
             (LPCSTR)pXMLDoc->xml);
     }

     printf("\n\nValidating nodes...\n");
     MSXML2::IXMLDOMNodeListPtr pNodeList;
     pNodeList = pXMLDoc->selectNodes("//book");
     for (int i=; i<pNodeList->length; i++){
         pError = pXMLDoc->validateNode(pNodeList->item[i]);
         if (pError->errorCode != ) {
             printf("\nNode %d is invalid:\n\treason: %s", i,
                 (LPCSTR)pError->reason);
             printf("\terrorXPath:\n%s",
                 (LPCSTR)pError->errorXPath);
             printf("\nParameters Count: %d\n",
                 pError->errorParametersCount);
             for (int j=; j<pError->errorParametersCount; j++){
                 printf("\terrorParameters(%d): %s\n",
                     j, (LPCSTR)pError->errorParameters(j));
             }
         }else{
             MSXML2::IXMLDOMNodePtr pNode=pNodeList->item[i];
             printf("\nNode %d is valid:\n%s\n", i,
                 (LPCSTR)pNode->xml);
         }
     }

     pError.Release();
     pXMLDoc.Release();
     pNodeList.Release();
     pSCache.Release();
     pXSDDoc.Release();

     CoUninitialize();
     return ;
 }

注：MSXML2::IXMLDOMNodeListPtr与MSXML2::IXMLDOMNodePtr，命名空间重复，显示指明命名空间即可

其他参考：XML实例入门1