请教一个关于 C++ Poco XML SAX 解析 相关的问题

#include "HTTPRequestHome.h" #include "Poco/Net/HTTPServerResponse.h" #include "Poco/Net/HTTPServerRequest.h" #include "Poco/Net/HTMLForm.h" #include "Poco/StreamCopier.h" #include "Poco/SAX/SAXParser.h" #include "XMLHandler.h" using namespace Poco; using namespace std; using namespace Poco::XML; void HTTPRequestHome::handleRequest(HTTPServerRequest &request, HTTPServerResponse &response) { response.setStatus(HTTPResponse::HTTP_OK); ostream &stream = response.send(); if (request.getMethod() == HTTPServerRequest::HTTP_GET) { HTMLForm form(request); stream << form.get("echostr"); return; } string data; StreamCopier::copyToString(request.stream(), data); XMLHandler handler; SAXParser parser; parser.setContentHandler(&handler); parser.parseString(data); // 已经解析完了 可是要怎么拿到这里来用呢? stream << "success"; } 

XMLHandler.h

#ifndef QUNAR_XMLHANDLER_H #define QUNAR_XMLHANDLER_H #include "Poco/SAX/ContentHandler.h" using namespace Poco::XML; using namespace std; class XMLHandler : public ContentHandler { public: void setDocumentLocator(const Locator *loc) override {}; void startDocument() override {}; void endDocument() override {} void startElement(const XMLString &uri, const XMLString &localName, const XMLString &qname, const Attributes &attrList) override; void endElement(const XMLString &uri, const XMLString &localName, const XMLString &qname) override {}; void characters(const XMLChar ch[], int start, int length) override; void ignorableWhitespace(const XMLChar ch[], int start, int length) override {}; void processingInstruction(const XMLString &target, const XMLString &data) override {}; void startPrefixMapping(const XMLString &prefix, const XMLString &uri) override {}; void endPrefixMapping(const XMLString &prefix) override {}; void skippedEntity(const XMLString &name) override {}; }; #endif //QUNAR_XMLHANDLER_H 

XMLHandler.cpp

#include <iostream> #include "XMLHandler.h" void XMLHandler::startElement(const XMLString &uri, const XMLString &localName, const XMLString &qname, const Attributes &attrList) { cout << localName << endl; } void XMLHandler::characters(const XMLChar *ch, int start, int length) { cout << static_cast<string>(ch).substr(static_cast<unsigned long>(start), static_cast<unsigned long>(length)); } 

解析好了 可以控制台输出 但是不知道 怎么拿出来用