序列化 XML 数据

// DOMImplementationLS contains factory methods for creating objects
// that implement the DOMBuilder and the DOMWriter interfaces
static const XMLCh gLS[] = { chLatin_L, chLatin_S, chNull };
DOMImplementation *impl =
DOMImplementationRegistry::getDOMImplementation(gLS);
// construct the DOMBuilder
DOMBuilder* myParser = ((DOMImplementationLS*)impl)->
createDOMBuilder(DOMImplementationLS::MODE_SYNCHRONOUS, 0);
// parse the XML data, assume it is saved in a local file
// called "theXMLFile.xml"
// the DOMBuilder will parse the data and return it as a DOM tree
DOMNode* aDOMNode = myParser->parseURI("theXMLFile.xml");
// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// optionally, set some DOMWriter features
// set the format-pretty-print feature
if (myWriter->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true))
myWriter->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true);
// set the byte-order-mark feature
if (myWriter->canSetFeature(XMLUni::fgDOMWRTBOM, true))
myWriter->setFeature(XMLUni::fgDOMWRTBOM, true);
// serialize the DOMNode to a UTF-16 string
XMLCh* theXMLString_Unicode = myWriter->writeToString(*aDOMNode);
// release the memory
XMLString::release(&theXMLString_Unicode);
myWriter->release();
myParser->release();

// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// serialize a DOMNode to a UTF-16 string
XMLCh* theXMLString_Unicode = myWriter->writeToString(*aDOMNode);
// release the memory
XMLString::release(&theXMLString_Unicode);
myWriter->release();

// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// serialize a DOMNode to a UTF-16 string
XMLCh* theXMLString_Unicode = myWriter->writeToString(*aDOMNode);
// construct a transcoder in Big5
XMLTransService::Codes resCode;
XMLTranscoder* aBig5Transcoder =  XMLPlatformUtils::fgTransService->
makeNewTranscoderFor("Big5", resCode, 16*1024,
XMLPlatformUtils::fgMemoryManager);
// transcode the string into Big5
unsigned int charsEaten;
char resultXMLString_Encoded[16*1024+4];
aBig5Transcoder->transcodeTo(theXMLString_Unicode,
XMLString::stringLen(theXMLString_Unicode),
(XMLByte*) resultXMLString_Encoded,
16*1024,
charsEaten,
XMLTranscoder::UnRep_Throw );
// release the memory
XMLString::release(&theXMLString_Unicode);
delete aBig5Transcoder;
myWriter->release();

// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// construct the MemBufFormatTarget
XMLFormatTarget *myFormatTarget = new MemBufFormatTarget();
// set the encoding to be Big5
XMLCh tempStr[100];
XMLString::transcode("Big5", tempStr, 99);
myWriter->setEncoding(tempStr);
// serialize a DOMNode to an internal memory buffer
myWriter->writeNode(myFormatTarget, *aDOMNode);
// get the string which is encoded in Big 5 from the MemBufFormatTarget
char* theXMLString_Encoded = (char*)
((MemBufFormatTarget*)myFormatTarget)->getRawBuffer();
// release the memory
myWriter->release();
delete myFormatTarget;

// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// construct the StdOutFormatTarget
XMLFormatTarget *myFormatTarget = new StdOutFormatTarget();
// serialize a DOMNode to the standard output
myWriter->writeNode(myFormatTarget, *aDOMNode);
// release the memory
myWriter->release();
delete myFormatTarget;

// construct the DOMWriter
DOMWriter* myWriter = ((DOMImplementationLS*)impl)->createDOMWriter();
// construct the LocalFileFormatTarget
XMLFormatTarget *myFormatTarget = new LocalFileFormatTarget("myXMLFile.xml");
// serialize a DOMNode to the local file "myXMLFile.xml"
myWriter->writeNode(myFormatTarget, *aDOMNode);
// optionally, you can flush the buffer to ensure all contents are written
myFormatTarget->flush();
// release the memory
myWriter->release();
delete myFormatTarget;