问题
I have a QList list. I want to insert it on the database. I didn't find any serializer method after some googling. If there any method / idea to serialize the list data for database?
回答1:
How about using QStringList
instead of QList<QString>
-
QStringList numberList_; // instead of QList<QString>, use this
QString myString1 = "Hello";
QString myString2 = "World";
numberList_ << myString1;
numberList_ << myString2;
QByteArray byteArray;
QBuffer buffer(&byteArray);
QDataStream out(&buffer);
out << numberList_;
Probably QList<QString>
should also work in place of QStringList
. If it doesn't, well, you can convert it pretty easily to QStringList
.
QDataStream, QBuffer, QByteArray and QStringList reference.
回答2:
Here is another option that is a bit more succinct:
QString serialize(QStringList stringList)
{
QByteArray byteArray;
QDataStream out(&byteArray, QIODevice::WriteOnly);
out << stringList;
return QString(byteArray.toBase64());
}
QStringList deserialize(QString serializedStringList)
{
QStringList result;
QByteArray byteArray = QByteArray::fromBase64(serializedStringList.toUtf8());
QDataStream in(&byteArray, QIODevice::ReadOnly);
in >> result;
return result;
}
来源:https://stackoverflow.com/questions/9817918/qt-qlistqstring-serialization-for-database