简单来说,读一个xml文件,然后对某些节点进行修改(本例子没有修改,增加修改也很简单),然后写入目标xml文件的例子。
QFile srcFile(srcFileName);
if (!srcFile.open(QFile::ReadOnly | QFile::Text)) {
QMessageBox::warning(this, tr("Warning/ Convert"),
tr("Cannot open soruce file %1:\n%2.")
.arg(srcFileName)
.arg(srcFile.errorString()));
return;
}
QFile tarFile(tarFileName);
if (!tarFile.open(QFile::WriteOnly | QFile::Text | QIODevice::Truncate)) {
QMessageBox::warning(this, tr("Warning/ Convert"),
tr("Cannot open target file %1:\n%2.")
.arg(tarFileName)
.arg(tarFile.errorString()));
srcFile.close();
return;
}
QXmlStreamReader reader(&srcFile);
QXmlStreamWriter writer(&tarFile);
writer.setAutoFormatting(true);
writer.writeStartDocument();
while (!reader.atEnd())
{
reader.readNext();
if(reader.isStartElement())
{
QXmlStreamAttributes attr = reader.attributes();
writer.writeStartElement(reader.name().toString());
if(attr.size()>0)
{
writer.writeAttributes(attr);
}
}
if(reader.isCharacters())
{
writer.writeCharacters(reader.text().toString());
}
if(reader.isEndElement())
{
writer.writeEndElement();
}
}
writer.writeEndDocument();
srcFile.close();
tarFile.Close();