Qt平台下,修改xml文件。

#include<QtGui>

#include<QtXml>

#include<iostream>

#include"xmlstream.h"

#include"cscenario.h"

boolXmlStream::modiXml(constQString&fileName)

{

QFilefile(fileName);

if(!file.open(QFile::ReadOnly|QFile::Text))

{

std::cerr<<"Error:Cannotreadfile"<<qPrintable(fileName)

<<":"<<qPrintable(file.errorString())

<<std::endl;

returnfalse;

}

QStringerrorStr;

interrorLine;

interrorColumn;

QDomDocumentdoc;

if(!doc.setContent(&file,false,&errorStr,&errorLine,

&errorColumn))

{

std::cerr<<"Error:Parseerroratline"<<errorLine<<","

<<"column"<<errorColumn<<":"

<<qPrintable(errorStr)<<std::endl;

returnfalse;

}

file.close();

QDomElementroot=doc.documentElement();

QDomNodechild=root.firstChild();

while(!child.isNull())

{

if(child.toElement().tagName()=="name")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("chenXX");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="station")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("only one");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="qqqqqqqqqqqqqq")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("super man");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="a suiper man")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue(

xmlScenario->getState("XXXXXXXX"));

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="rnc_level")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue(

xmlScenario->getState("perserres"));

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="sssssss")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("sssssssssssssssssssssss");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="sssssssss")

{

QDomElementel=child.toElement();

QDomNodeoldnode=el.firstChild();

QStringmml="thisisceshideremove_mmlwenjian;";

//el.firstChild().setNodeValue(xmlScenario->getRncRemove());

el.firstChild().setNodeValue(mml);

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

child=child.nextSibling();

}

elseif(child.toElement().tagName()=="aaaaaaaaaaaaaaaa")

{

QDomElementel=child.toElement();

QDomNodenodebChild=el.firstChild();

QVector<CFG_ENTITY>::iteratorite;

QVector<CFG_ENTITY>m_cfgEntity;

m_cfgEntity=xmlScenario->getCfgEntity();

while(!nodebChild.isNull())

{

if(nodebChild.toElement().tagName()=="aaaaaaaaaaaaa")

{

for(ite=m_cfgEntity.begin();ite!=m_cfgEntity.end();++ite)

{

if(ite->entityName==nodebChild.toElement().text())

{

break;

}

}

std::cerr<<qPrintable(nodebChild.toElement().text())<<std::endl;

if(ite==m_cfgEntity.end())

{

}

nodebChild=nodebChild.nextSibling();

}

elseif(nodebChild.toElement().tagName()=="ccccccccccccc")

{

QDomElementel=nodebChild.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("ddddddddddd");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

nodebChild=nodebChild.nextSibling();

}

elseif(nodebChild.toElement().tagName()=="ffffffffffffff")

{

QDomElementel=nodebChild.toElement();

QDomNodeoldnode=el.firstChild();

el.firstChild().setNodeValue("ggggggggggggggggg");

QDomNodenewnode=el.firstChild();

el.replaceChild(newnode,oldnode);

std::cerr<<qPrintable(el.tagName())<<std::endl;

std::cerr<<qPrintable(el.text())<<std::endl;

nodebChild=nodebChild.nextSibling();

}

else

{

nodebChild=nodebChild.nextSibling();

}

}

child=child.nextSibling();

}

else

{

child=child.nextSibling();

}

}

QFilef(fileName);

if(!f.open(QFile::WriteOnly|QFile::Text))

{

std::cerr<<"Error:Cannotreadfile"

<<qPrintable(fileName)

<<":"<<qPrintable(f.errorString())

<<std::endl;

returnfalse;

}

QTextStreamout(&f);

root.save(out,4);

returntrue;

}