How to parse XML file using CParser class
Reviewer Approved
The following example shows how to parse XML file using Symbian OS C++ class, CParser. CParser is basically a SAX (Simple API for XML)-based XML parser.
It uses an active object to read the XML file chunk by chunk (see CXmlHandler::StartParsingWithAoL() method). On each chunk, it passes the buffer to the XML parser. When the XML parser finds an element, it calls the respective callback functions, for example CXmlHandler::OnStartElementL() or CXmlHandler::OnEndElementL().
To use CParser class, the XmlFramework.lib has to be included in the .mmp file. For more information about CParser, please visit some links at the end of this page.
Contents
[hide]
1 XmlHandler.h
2 XmlHandler.cpp
3 download example
4 See Also
[edit] XmlHandler.h
#ifndef __XMLHANDLER_H__
#define __XMLHANDLER_H__
// INCLUDE FILES
#include <e32base.h>
#include <f32file.h> //Link against efsrv.lib
#include <xml\contenthandler.h> // for MContentHandler
#include <xml\parser.h> // for CParser
// CLASS DECLARATION
using namespace Xml;
class CXmlHandler: public CActive, MContentHandler
{
public: // Constructors and destructor
static CXmlHandler* NewL();
static CXmlHandler* NewLC();
virtual ~CXmlHandler();
public: // Public methods
void StartParsingWithAoL( const TDesC& aFileName );
private: // Constructors
CXmlHandler();
void ConstructL();
private: // from CActive
void DoCancel();
void RunL();
private: // from MContentHandler
void OnStartDocumentL( const RDocumentParameters &aDocParam,
&n
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private void WriteXML()
{
StringBuilder sb = new StringBuilder();
sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?> ");
sb.Append(" <!-- ");
sb.Append("<content>");
sb.Append(& ......
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CMarkup xml;
CString strChanText, strChanType;
xml.Load("MyXml.xml");
xml.ResetMainPos();
if (!Chan.FindElem("TreeOrg"))
{
return;
}
if (xml.IntoElem())
{
xml.FindEle ......
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//xmlÎĵµÄÚÈÝ
<?xml version = "1.0" encoding="gb2312" standalone="yes"?>
<VFPData>
<company>
<companyno>100</companyno>
<companyname>ÉϺ£</companyname>
<ceoname>³ÂËÄ</ceoname>
<ceoma ......