利用VC++实现对XML结点的更新和追加

实现功能：根据配置文件（XXXX.ini）中的内容对XML中节点进行操作，如果XML中存在与配置文件中相同的节点，则根据配置文件将XML文件中相应节点的值进行更新；如果XML文件中不存在配置文件中出现的节点，则在XML中将新节点及值进行插入操作。

◆XML文档结构如下

//--------------------------------------------------------------------------------------------

- <printer driver-name="OKI C710(PS)">

<color-profile path="ColorProfiles/OkiC710CMY.icc" />

</printer>

- <printer driver-name="OKI C710(PCL)">

<color-profile path="ColorProfiles/OkiC710CMY.icc" />

</printer>

- <printer driver-name="OKI C830(PS)">

<color-profile path="ColorProfiles/OkiC830CMY_new.icc
" />

</printer>

- <printer driver-name="OKI C830(PCL)">

<color-profile path="ColorProfiles/OkiC830CMY.icc" />

</printer>

//--------------------------------------------------------------------------------------------

◆配置文件结构如下

//----------------------------------------------------------------------------------------------

[Driver]

D1=OKI C830(PCL);OkiC830CMY_new;ColorProfiles/OkiC830CMY_new.icc

D2=OKI C810(PCL);OkiC810CMY_new;ColorProfiles/OkiC810CMY_new.icc

//-----------------------------------------------------------------------------------------------

实现步骤：

1, 读取配置文件，并将其中的信息内容用类对像进行保存

2, 对XML档进行更新.

因为整个过程并不复杂，现将代码附上。

类定义

//CCustomMediaInfoクラスの定義

//機能：GridLayouter機種設定ツールのGLPDFInfo.datファイル情報を初期化処理

//期日：2009.10.29

//作成：

//その他：The CustomMedia.ini file is located at ../CustomMedia/CustomMediaInfo.ini

#define MAX_UPDATE_PRN 256 //The must number of printers to be updated.

//To save the value of every item of a line in GLPDFInfo.dat or okPrnInfo.dat.

struct CM_PRN_INFO

{

TCHAR szPrnName[MAX_PATH]; //プリンタ名を格納,例：C8800

TCHAR szPCLName[MAX_PATH];//DriverName,PCL

TCHAR szPSName[MAX_PATH];//DriverName ,PS

TCHAR szHDDPath[MAX_PATH];//HDDを実装すれば、PJLPathの格納；例：C8800.pjl

TCHAR szNOHDDPath[MAX_PATH];//HDDを実装しなければ、PJLPathの格納

};

class CCustomMediaInfo

{

public:

CCustomMediaInfo(TCHAR* pCMInfoFileName);

public:

~CCustomMediaInfo(void);

int GetCMFileInfo();//CustomMediaInfo.iniファイルを初期化読む

int GetCMPrinterCount();//Get the Count of printers in customMediaInfo.ini file.

void GetCMPrinterName(int nIndex, TCHAR* pCMPrinterName);//CustomMediaInfo.iniファイル中、プリンタ索引はｎIndex時、プリンタ名を戻る。

void GetCMPSName(int nIndex, TCHAR* pCMPSName);//CustomMediaInfo.iniファイル中、プリンタ索引はｎIndex時、プリンタPS名を戻る。

void GetCMPCLName(int nIndex, TCHAR* pCMPCLName);//CustomMediaInfo.iniファイル中、プリンタ索引はｎIndex時、プリンタPCL名を戻る。

void GetCMHDDPJLPath(TCHAR* pPrnName, TCHAR* pCMHDDPJLPath);//CustomMediaInfo.iniファイル中、HDD実装すれば、プリンタ名はｐPrnName時、PJLファイルのFULLPathを戻る。

void GetCMNOHDDPJLPath(TCHAR* pPrnName, TCHAR* pCMNOHDDPJLPath);//CustomMediaInfo.iniファイル中、HDD実装しなければ、プリンタ名はｐPrnName時、PJLファイルのFULLPathを戻る。

DWORD GetCMHDDPJLSize(TCHAR* pPrnName);//Get the HDD_PJL file's size.

DWORD GetCMNOHDDPJLSize(TCHAR* pPrnName);//Get the NO_HDD PJL file's size

private:

TCHAR* m_pCMInfoFileName;//初期化時、CustomMediaInfo.Iniファイル名を格納、パスを含まれない。

int m_iCMPrnCount;//Iniファイル中、プリンタ数量を格納

CM_PRN_INFO* m_pCMPrnInfo;//Iniファイルで読んだプリンタとPJLファイル名を格納

TCHAR* m_pCMFolderPath;//The path of customMediaInfo.ini file's folder.

};

//****************************************************************************//

//機能：XMLファイルに更新と追加操作を実行する。

//戻る：0 成功

// 1　GridLayouter存在しない

//　　　2　XMLファイル操作失敗　

//入力：なし

//出力：なし

//****************************************************************************//

#import <msxml2.dll>//导入XML库

int CGLUpdateInfo::UpdateXMLFile()

{

//変数定義

//For XML Path

HKEY hkLocal; //handel to register

LONG lResult;

TCHAR RegRoot[MAX_PATH];//save the register table path of GridLayouter

DWORD dwType, dwSize;

TCHAR szAppPath[MAX_PATH];//save the return value of GridLayouter's Path

//For XML file

MSXML2::IXMLDOMDocumentPtr pXMLDoC; //pointer to the XML document

MSXML2::IXMLDOMNodeListPtr pPrinterList, pColorProfileList;//Pointer to printerList and colorProfile list

at XML file.

MSXML2::IXMLDOMNamedNodeMapPtr pNodesAttrs, pSubNodesAttrs;//Colection for Nodes,typically used for attributes.

MSXML2::IXMLDOMNodePtr pSelectPrinterNode, pSelectColorProfileNode;//pointer to current select node.

MSXML2::IXMLDOMNodePtr pAttrDriverNameNode;// attribute dirver-name

MSXML2::IXMLDOMNodePtr pAttrColorProfilePathNode;// path of color-profile

MSXML2::IXMLDOMNodePtr pRootNode, pSecondRootNode; //used for adding item

MSXML2::IXMLDOMElementPtr pElementChild, pElementChild2;//used for adding item.

CComBSTR driverNameText; //text of driver-name

CComBSTR colorProfilePathText;// text of color-profile

//First: Search the Register to confirm GridLayouter is installed or not

ZeroMemory(RegRoot,MAX_PATH);

_stprintf_s(RegRoot,_countof(RegRoot),_T("%s"),_T("SOFTWARE//Classes//GridLayouter.Document//shell//open//command"));

if(lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE,RegRoot,0, KEY_READ,&hkLocal) !=ERROR_SUCCESS)

{

return 1;

}

dwSize = sizeof(szAppPath);

dwType = REG_SZ; //String end with zero.

if(RegQueryValueEx(hkLocal,(LPCTSTR)_T(""), NULL,&dwType,(LPBYTE)szAppPath,&dwSize)!=ERROR_SUCCESS) //Get the default value

{

return 1;

}

//Second Get the path of GOSettings.xml →m_pDestXMLPath

TCHAR szXMLName[MAX_PATH];

ZeroMemory(szXMLName, MAX_PATH);

*(_tcsrchr(szAppPath,_T('//'))) = NULL;

CString strAppPath(szAppPath);

int i_sPath = strAppPath.Find(_T('"'));//delete the first character,because it is a quato(")

strAppPath = strAppPath.Right(strAppPath.GetLength() - i_sPath -1);

lstrcpy(szXMLName, strAppPath.GetBuffer());

_stprintf_s(m_pDestICCFolder,MAX_PATH,_T("%s//ColorProfiles"),szXMLName); //Save the path of ColorProfiles Folder.

lstrcat(szXMLName,_T("//GOSettings.xml"));//

//m_pDestXMLPath = szXMLName; //Save the XML Path

lstrcpy(m_pDestXMLPath, szXMLName);

//Third Open the XML file and update it

long nListPrinterNodeLen;//length of printer node list.

HRESULT hr;

variant_t vResult;//save return value;

hr = CoInitialize(NULL);//Initializes the COM library

if(S_OK != hr)

{

return 2;

}

hr = pXMLDoC.CreateInstance(__uuidof(MSXML2::DOMDocument26));

if(S_OK != hr)

{

return 2;

}

vResult = pXMLDoC->load(m_pDestXMLPath);//Load XML File

if (!(bool)vResult)

{

return 2;//load xml failed.

}

//Get the node list

pPrinterList = pXMLDoC->getElementsByTagName(_T("printer"));//get the tag of <printer></printer>

if (!pPrinterList)

{

return 2;

}

hr = pPrinterList->get_length(&nListPrinterNodeLen);//get the length of nodelist

if(S_OK != hr)

{

return 2;

}

//travers the sturcuter GL_PRN_INFO,according to the printer name to update XML file

for (int iCount = 1; iCount<= m_iGLUPPrnCount; iCount++)

{

//Traverse the printer nodelist

for (int iNode = 0; iNode < nListPrinterNodeLen; iNode++)

{

//get current node

hr = pPrinterList->get_item(iNode, &pSelectPrinterNode);

if (S_OK != hr)

{

return 2;

}

//Get the attribute of node

pSelectPrinterNode->get_attributes(&pNodesAttrs);

pAttrDriverNameNode = pNodesAttrs->getNamedItem(_T("driver-name"));

hr = pAttrDriverNameNode ->get_text(&driverNameText);

if (S_OK != hr)

{

return 2;

}

//プリンタ名はXMLに存在の場合は、更新実行する。

//プリンタ名はXMLファイルに存在しないの場合は、追加する。

if (lstrcmp(_com_util::ConvertBSTRToString(driverNameText.m_str),m_pGLUPPrnInfo[iCount].sPrinterName) == 0)

{

//Next,Traverse the subNodelist(<color-profile path=....>)

//Get the path of icc file

hr = pSelectPrinterNode->get_childNodes(&pColorProfileList);

if (S_OK != hr)

{

return 2;

}

//get the length of subNodelist

long nSubListLen;

hr = pColorProfileList->get_length(&nSubListLen);

if(nSubListLen == 1)

{

//get current node item

hr = pColorProfileList->get_item(0, &pSelectColorProfileNode);

if (S_OK!= hr)

{

return 2;

}

//get its attributes

pSelectColorProfileNode->get_attributes(&pSubNodesAttrs);

pAttrColorProfilePathNode = pSubNodesAttrs->getNamedItem(_T("path"));

//EXECUTE:update the path of XML file

hr = pAttrColorProfilePathNode->put_text(_com_util::ConvertStringToBSTR(m_pGLUPPrnInfo[iCount].sICCPath));

if (S_OK != hr)

{

return 2;

}

//保存

hr = pXMLDoC->save(m_pDestXMLPath);//save the XML

if (S_OK != hr)

{

return 2;

}

break;

}//if(nSubListLen == 1)

}//if (driverNameText == m_pGLUPPrnInfo[iCount].sPrinterName)

else //driverNameText != m_pGLUPPrnInfo[iCount].sPrinterName)

{

//XMLファイルにNodeを追加

if(iNode == nListPrinterNodeLen -1)

{

pRootNode = pXMLDoC->selectSingleNode(_T("gridonput-config"));

if (!pRootNode)

{

return 2;

}

pSecondRootNode = pRootNode->selectSingleNode(_T("directprint-settings"));

if (!pSecondRootNode)

{

return 2;

}

pElementChild = pXMLDoC->createElement((_bstr_t)(char*)(_T("printer")));

pElementChild->setAttribute((_bstr_t)(char*)_T("driver-name"), m_pGLUPPrnInfo[iCount].sPrinterName);

pSecondRootNode->appendChild(pElementChild);//append the <printer driver-name >

//create the node color-profile path

pElementChild2 = pXMLDoC->createElement((_bstr_t)(char*)_T("color-profile"));

pElementChild2->setAttribute((_bstr_t)(char*)_T("path"), m_pGLUPPrnInfo[iCount].sICCPath);

pElementChild->appendChild(pElementChild2);//append the <color-profile path>

pXMLDoC->save(m_pDestXMLPath);//save the results.

break;

}

}//end if

}//for(int iNode;.........)

}//for(int iCount........)

//CoUninitialize();

return 0;

}