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

Related → http://stackoverflow.com/questions/15893040/how-to-create-read-write-json-files-in-qt5 — Honest Abe, Aug 23 '15 at 03:25

dtech · Answer 1 · 2013-04-23T16:35:58.927

22

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

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

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

edited Apr 23 '13 at 16:35

answered Apr 23 '13 at 16:19

dtech

But, how to stract a JSON string from it? – Daniel Santos Jan 18 '16 at 11:10
https://stackoverflow.com/questions/28181627/how-to-convert-a-qjsonobject-to-qstring – Ashif Aug 30 '20 at 05:36

score 5 · Answer 2 · edited Aug 23 '15 at 03:46

5

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

edited Aug 23 '15 at 03:46

Honest Abe

answered Feb 14 '11 at 08:50

chalup

1

@BojanKogoj It still exists here: https://web.archive.org/web/20130111091817/http://qtwiki.remdex.info/Parsing_JSON_with_QT_using_standard_QT_library – kol May 22 '15 at 14:58

score -6 · Answer 3 · answered Feb 14 '11 at 00:23

-6

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

answered Feb 14 '11 at 00:23

ak.

2

nowadays is this answer no longer valid, there is a QJsonObject class – ΦXocę 웃 Пepeúpa ツ Oct 05 '18 at 08:13

3 Answers3