How to serialize to JSON in Qt

Question

How can I JSON serialize a QVariant (or other type of data) in Qt. I don\'t want to use an external third party library like QJson

Answer 1

See this JSON Save Game example on serialization of an object to a JSON document.

Answer 2

There are no internal tools in Qt to do it. You will have to use a lib. Or roll your own implementation

Answer 3

Parsing JSON with QT using standard QT library.

BTW: why don't you want to use QJson? It nicely encapsulates all the QScriptValueIterator stuff, making your code easier to read.

Answer 4

Just to mention, as of Qt5, JSON is officially supported:

JSON Support in Qt

QVariant id(1), name("John Doe");
QJsonObject json;

json["Name"] = name.toString();
json.insert("id", id.toInt());