VC Read XML Simple example

VC Read XML Simple Example

XML has recently been blown marvellous, a lot of data exchange, including a lot of middleware systems, WebService, software configuration files, are in the XML technology, is really a good thing, I preface, wrote a read the XML snippet, with some of MSXML's interface.

I read the configuration file for the BT software, and the XML content is as follows:

<?xml version= "1.0"?>

<bitcomet author= "Rnysmile" version= "0.1" >

<Settings>

<lastsavelocation>e:/ebook </LastSaveLocation>

<ListenPort>8497</ListenPort>

<GlobalMaxUploadRate>3072</GlobalMaxUploadRate>

<LastAdCacheClearDate>13104</LastAdCacheClearDate>

<LastTrackerKey>16547</LastTrackerKey>

<TotalUpload>303008</TotalUpload>

<TotalDownload>1180107</TotalDownload>

<LastExitTime>1132203124</LastExitTime>

</Settings>

</BitComet>

The code is as follows:

#include "stdafx.h"

#include <iostream>

using namespace Std;

#include <msxml.h>

#include <atlstr.h>

#import "Msxml.dll" raw_interfaces_only

int _tmain (int argc, _tchar* argv[])

{

:: CoInitialize (NULL);

Ccomptr<msxml::ixmldomdocument> Spdoc;

HRESULT hr = spdoc.cocreateinstance (__uuidof (MSXML::D omdocument)); Create a Document Object

Variant_bool Bflag;

hr = Spdoc->load (CComVariant (L "Bitcomet.xml"), &bflag); Load XML file

Ccomptr<msxml::ixmldomelement> spelement;

hr = Spdoc->get_documentelement (&spelement); Get root node

CComBSTR Strtagname;

hr = Spelement->get_tagname (&strtagname);

cout << "------TagName------" << Endl;

cout << CString (strtagname) << Endl;

Ccomptr<msxml::ixmldomnodelist> spnodelist;

hr = Spelement->get_childnodes (&spnodelist); Get a list of child nodes

Long Lcount;

hr = Spnodelist->get_length (&lcount);

for (long i=0; i<lcount; ++i)

{

CComVariant Varnodevalue;

Ccomptr<msxml::ixmldomnode> Spnode;

MSXML::D omnodetype NodeType;

Ccomptr<msxml::ixmldomnodelist> spchildnodelist;

hr = Spnodelist->get_item (i, &spnode); Get the node.

hr = Spnode->get_nodetype (&nodetype); Gets the type of node information

if (node_element = = NodeType)

{

hr = Spnode->get_childnodes (&spchildnodelist);

Long Childlen;

hr = Spchildnodelist->get_length (&childlen);

cout << "------nodelist------" << Endl;

for (int j=0; j<childlen; ++j)

{

Ccomptr<msxml::ixmldomnode> Spchildnode;

CComBSTR value;

hr = Spchildnodelist->get_item (j, &spchildnode);

hr = Spchildnode->get_nodename (&value); Get the name of the knot.

cout << CString (value) << Endl;

hr = Spchildnode->get_text (&value); Get the value of a node