-- 作者：wFirebird
-- 发布时间：2/8/2006 12:30:00 PM
-- 在VC下编程自动加载Schema文件来解析XML的例子[原创]
这个困惑我两个星期的问题终于让一个网上朋友帮我解决了~
下面是原代码，希望在这里有困惑的人都能走出坑去 ：）
如果有人还想交流一下的话，我很喜欢 ：）
我的QQ：88342036
MSN：firebird_668899@hotmail.com
原代码：（注：请修改load下面的路径以及
pSchemaCache->add("http://www.tuha.net", pXSDDoc.GetInterfacePtr())中的http://www.tuha.net"为targetNamespace的地址 我以前就失败在这里，要特别小心） // AddXMLSchema.cpp : Defines the entry point for the console application.
// #include "stdafx.h"
#import <msxml4.dll>
using namespace MSXML2; int checkParseError(IXMLDOMParseErrorPtr pError);
void dump_com_error(_com_error &e);
int main(int argc, char* argv[])
{ CoInitialize(NULL);
try{ IXMLDOMParseErrorPtr pError; // load the XML file
// ****** you need to use IXMLDOMDocument2 interface *********
IXMLDOMDocument2Ptr pXMLDoc;
HRESULT hr = pXMLDoc.CreateInstance(__uuidof(DOMDocument40));
pXMLDoc->async = VARIANT_FALSE; hr = pXMLDoc->load("e:\\books.xml"); //check on the parser error
if(hr!=VARIANT_TRUE)
{
return checkParseError(pXMLDoc->parseError);
} //load the XSD file
IXMLDOMDocumentPtr pXSDDoc;
hr = pXSDDoc.CreateInstance(__uuidof(DOMDocument40));
pXSDDoc->async = VARIANT_FALSE; hr = pXSDDoc->load("e:\\books.xsd"); //check on the parser error
if(hr!=VARIANT_TRUE)
{
return checkParseError(pXSDDoc->parseError);
} //create schemacache
IXMLDOMSchemaCollectionPtr pSchemaCache;
hr = pSchemaCache.CreateInstance(__uuidof(XMLSchemaCache40));
pXMLDoc->schemas = pSchemaCache.GetInterfacePtr(); //hook it up with XML Document
hr = pSchemaCache->add("http://www.tuha.net", pXSDDoc.GetInterfacePtr()); //call validate
pError = pXMLDoc->validate(); if(pError->errorCode != S_OK)
{
_bstr_t parseError = _bstr_t("Error code: ")+ _bstr_t(pError->errorCode) +_bstr_t("\n") + _bstr_t("Reason: ")+ pError->Getreason();
MessageBox(NULL, (char*)parseError, "Parse Error",MB_OK);
return -1;
}
else
MessageBox(NULL,"Valiation succeeded", "Results",MB_OK); }
catch(_com_error &e)
{
dump_com_error(e);
}
return 0;
}
int checkParseError(IXMLDOMParseErrorPtr pError)
{
_bstr_t parseError =_bstr_t("At line ")+ _bstr_t(pError->Getline()) + _bstr_t("\n")+ _bstr_t(pError->Getreason());
MessageBox(NULL,parseError, "Parse Error",MB_OK);
return -1; } void dump_com_error(_com_error &e)
{
printf("Error\n");
printf("\a\tCode = %08lx\n", e.Error());
printf("\a\tCode meaning = %s", e.ErrorMessage());
_bstr_t bstrSource(e.Source());
_bstr_t bstrDescription(e.Description());
printf("\a\tSource = %s\n", (LPCSTR) bstrSource);
printf("\a\tDescription = %s\n", (LPCSTR) bstrDescription);
} XML文件我也给出来吧全点的会让大家清楚些。
books.xml文件 <?xml version="1.0" encoding="UTF-8"?>
<n:Collection xmlns:n="http://www.tuha.net" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.tuha.net
E:\books.xsd">
<Book>
<Title>String</Title>
<Author>String</Author>
<Publisher>String</Publisher>
</Book>
</n:Collection> books.xsd文件 <?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.tuha.net">
<xs:element name="Collection">
<xs:complexType>
<xs:sequence>
<xs:element name="Book">
<xs:complexType>
<xs:sequence>
<xs:element name="Title" type="xs:string" maxOccurs="1"/>
<xs:element name="Author" type="xs:string" minOccurs="1"/>
<xs:element name="Publisher" type="xs:string" maxOccurs="1"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema> 我测试无数次都有效，如果不想更改设置就直接把上面的文件放E盘
希望对大家有用！
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