C++ 验证不使用';不要使用Xerces定义模式
我正在使用Xerces-C++(版本2.6.1)SAX2解析器来验证XML,如下面的文档。(这是MSML—中定义的媒体服务器标记语言。)C++ 验证不使用';不要使用Xerces定义模式,c++,xml,xsd,xerces,C++,Xml,Xsd,Xerces,我正在使用Xerces-C++(版本2.6.1)SAX2解析器来验证XML,如下面的文档。(这是MSML—中定义的媒体服务器标记语言。) 经过反复尝试,我终于发现了问题所在。验证错误报告给传递给解析器的ErrorHandler上的error回调。schemaLocation属性没有问题 解决了这个问题,并添加了XML语法缓存以提高性能,代码如下所示 SAX2XMLReader* parser = XMLReaderFactory::createXMLReader(); // Enable th
经过反复尝试,我终于发现了问题所在。验证错误报告给传递给解析器的
ErrorHandler
上的error
回调。schemaLocation
属性没有问题
解决了这个问题,并添加了XML语法缓存以提高性能,代码如下所示
SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
// Enable the parser's schema support
parser->setFeature(XMLUni::fgXercesSchema, true);
// Schema validation requires namespace processing to be turned on.
parser->setFeature(XMLUni::fgSAX2CoreValidation, true);
parser->setFeature(XMLUni::fgSAX2CoreNameSpaces, true);
// Cache the XML grammar and use it for subsequent parses.
mParser->setFeature(XMLUni::fgXercesCacheGrammarFromParse, true);
mParser->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);
// Define the location of the MSML schema.
XMLCh* schemaLocation = XMLString::transcode("/directory/path/msml-core.xsd");
parser->setProperty(XMLUni::fgXercesSchemaExternalNoNameSpaceSchemaLocation,
schemaLocation);
// MSMLHandler is defined elsewhere and inherits from xercesc/sax2/DefaultHandler
// It overrides startElement, fatalError *and error*.
MxMSMLHandler* msmlHandler = new MSMLHandler(xiSessionID, xoMSMLResponse);
parser->setContentHandler((ContentHandler*) msmlHandler);
parser->setErrorHandler((ErrorHandler*) msmlHandler);
// Do the parse
parser->parse(*xmlInputSource);
SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
// Enable the parser's schema support
parser->setFeature(XMLUni::fgXercesSchema, true);
// Schema validation requires namespace processing to be turned on.
parser->setFeature(XMLUni::fgSAX2CoreValidation, true);
parser->setFeature(XMLUni::fgSAX2CoreNameSpaces, true);
// Define the location of the MSML schema.
XMLCh* schemaLocation = XMLString::transcode("/directory/path/msml-core.xsd");
parser->setProperty(XMLUni::fgXercesSchemaExternalNoNameSpaceSchemaLocation,
schemaLocation);
// MSMLHandler is defined elsewhere and inherits from xercesc/sax2/DefaultHandler
// It overrides startElement and fatalError.
MxMSMLHandler* msmlHandler = new MSMLHandler(xiSessionID, xoMSMLResponse);
parser->setContentHandler((ContentHandler*) msmlHandler);
parser->setErrorHandler((ErrorHandler*) msmlHandler);
// Do the parse
parser->parse(*xmlInputSource);
SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
// Enable the parser's schema support
parser->setFeature(XMLUni::fgXercesSchema, true);
// Schema validation requires namespace processing to be turned on.
parser->setFeature(XMLUni::fgSAX2CoreValidation, true);
parser->setFeature(XMLUni::fgSAX2CoreNameSpaces, true);
// Cache the XML grammar and use it for subsequent parses.
mParser->setFeature(XMLUni::fgXercesCacheGrammarFromParse, true);
mParser->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);
// Define the location of the MSML schema.
XMLCh* schemaLocation = XMLString::transcode("/directory/path/msml-core.xsd");
parser->setProperty(XMLUni::fgXercesSchemaExternalNoNameSpaceSchemaLocation,
schemaLocation);
// MSMLHandler is defined elsewhere and inherits from xercesc/sax2/DefaultHandler
// It overrides startElement, fatalError *and error*.
MxMSMLHandler* msmlHandler = new MSMLHandler(xiSessionID, xoMSMLResponse);
parser->setContentHandler((ContentHandler*) msmlHandler);
parser->setErrorHandler((ErrorHandler*) msmlHandler);
// Do the parse
parser->parse(*xmlInputSource);