@CupofCoffee said in how can i modify the value of the Qjason array?: TradingAreaInfoArr = rootObj["TradingAreaInfo"].toArray(); My understanding is that this returns a copy of the QJsonArray. You can modify that copy (update values, append new ones), but that does not alter the array in the QJsonDocument. The same with the QJsonObject InfoObj = rootObj["info"].toObject(); The objects/arrays in these are read-only. You have to copy them out as above, alter them, and then replace the current objects/arrays in the document, or create a new one, in order to produce a new document with the updates which can be saved.

I did resolve it using rapidjson instead of QJsonObject Thank you all

@jsulm said in How to exploit a json file in QT ?: @feedain You already have this code snippet here, did you notice it? obj["State"] = int(state); yes thanks

@JonB I produced my Json. It make sense i will edit my json and write without " "

@JKSH Oh wow, you're completely right. I didn't know qDebug() behaved like this, I assumed noquote() was the default. Thanks for the help, I don't know how long it would have taken me to find out.

@J-Hilk thank you

@jsulm thank you. I did it with your solution. It works fine.

@suslucoder The "Plan" array is a little unusual because the objects it contains are not all of the same structure. Usually, arrays should contain a sequence of elements of the same type. However, it is legal JSON. If you are certain that the first element of the "Plan" array will have the structure as in your example above, you can perhaps rely on the others to all have the 2nd type structure. Otherwise, you might need to check for the existence of certain keys -- for example, by using the function QJsonObject::contains() to determine which kind of object it is.

@KroMignon thank you

@suslucoder said in no member named 'write' in 'QString': Im on ubuntu :) Oh, OK, then it doesn't actually matter as there is no "text vs binary" mode/format under Linux! Nonetheless I think it's good practice to put QIODevice::Text in, just in case you ever port to Windows...

@suslucoder This is contrary to 'real-time'.

@KroMignon thank you

@Christian-Ehrlicher I did use it. It looks in a code tag in my screen.

@jsulm Ok. Thank you for your answers.

@Mixlu What do you mean by "Unicode escaped format"? Normal characters won't be escaped, even a character like é also doesn't need to be escaped. If you use some special characters like \0, then it will be escaped to\u0000

Maybe @Moia want a method to get that QVariant without a QJsonValue? By looking into the source code of QJsonValue, you can see that value comes from QVariant::fromValue(nullptr)

Hi, From the looks of it, you are looking for the XMLHttpRequest example.

well this is how i have done it. Not sure if this is even the right way ( looks like a mess to me) QJsonDocument doc = QJsonDocument::fromJson(result.toUtf8()); qDebug() << "doc :" << doc; QJsonObject doc_obj = doc.object(); qDebug() << "doc_obj :" << doc_obj; QJsonArray doc_array = doc_obj.value("results").toArray(); doc_obj = doc_array[0].toObject(); doc_array = doc_obj.value("series").toArray(); doc_obj = doc_array[0].toObject(); doc_array = doc_obj.value("values").toArray(); for(int i = 0; i < doc_array.size(); i++) { QJsonArray arr = doc_array[i].toArray(); qDebug() << "doc value : " << arr[1].toString(); } i am getting resuls though

@mrjj said in How I can create Json Format in Qt ?: someObj Thanks, it helps a lot.

@jsulm we make an installation file for our combined system, including multiple programs sharing some but not other resources. we use an nsi script to manage this. usually works fine. I just missed updating some of the .dll files.

@Christian-Ehrlicher ahh, you are right. Good catch. http://doc.qt.io/qt-5/qjsonvalue.html#toDouble converts the QJsonValue to double if its that type(). in this case it will return defaultValue (0) so its something like QJsonValue bid1 = jsonObj.value("bid_1"); QString asStr=bid1.toString(); double n = asStr.toDouble(); qDebug() << n;

@Lodhi-bhkr Sorry, but this is not a question. What did you try? What problems do you have? Please ask more specific questions. Looks like you asked here already: https://forum.qt.io/topic/120439/qt-code-to-send-data-on-postman-http-post-request

@Paul-Colby Thanks i myself did something like this :) QVariantMap json_map; const QJsonDocument doc = QJsonDocument::fromJson(output); qDebug().noquote() << doc; qDebug().noquote() << doc.array(); foreach (auto value, doc.array()) { qDebug().noquote() << value; qDebug().noquote() << value.toObject(); qDebug().noquote() << value.toObject().value("name"); json_map["name"] = value.toObject().value("name").toString(); json_map["installed"] = value.toObject().value("installed").toBool(); json_map["id"] = value.toObject().value("id").toString(); json_map["filename"] = value.toObject().value("filename").toString(); }

@Saman19 You may want to check out Cutelyst if you want to support the HTTP protocol. If you do not need to rely on HTTP, but just want to receive JSON (or any custom protocol), take a look at QTcpServer examples.

Thank you guys. What a wonderful quick responses.

Hi @Geeva, @Geeva said in JSON with multi tasking: @JKSH Thanks for solving basic confusion. I have one more doubt also. Here, I have attached program for verification. I hope you can provide a proper solution You're welcome. I'm happy to teach you basics. However, verifying your program is too difficult to do on a forum. You need to do 2 things: Take C++ lessons Practice writing and debugging simple programs for your hardware

Hi @SGaist , no sorry. This was my first try to solve this. It dosn't work because of: @JNBarchan said: Once JSON has taken it as a double, it's too late. With a small test program I testes Qt-JSON: https://github.com/qt-json/qt-json #include <QCoreApplication> #include <QDebug> #include "json.h" int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); QString json = "{\"success\":true,\"message\":\"some-message\",\"number1\":1.234,\"number2\":\"5.678\"}"; bool ok; QtJson::JsonObject result = QtJson::parse(json, ok).toMap(); qDebug() << "number1: " << result["number1"].toString(); qDebug() << "number2: " << result["number2"].toString(); return a.exec(); } Which gives me the following output: number1: "1.234" number2: "5.678" So I think I can work with this library, but a bit sad about the truth, that such a case can't be handled without external libraries.

@Wieland: Thanks!

Thanks again for the explanation. I wish I had more time to learn programming correctly...

Hi, I am using the one dridk mentioned. The parsing works fine and I use listModel.append({jsonObject}); to fill my ListView. Everything is in the ListModel besides z. If I do: for(var i in jsonObject){ eventModel.append(jsonObject[i]) eventModel.set(i, {"zn":jsonObject[i]["z"][0]}) } z is added as an array. Just like in the JSON object just without the []-brackets.

Try to triangulate faces of your mesh (select your shape, switch to Edit Mode and press Ctrl+T ).

resolved !! i've chenged m_pNetworkAccessManager->get(request); by request.setRawHeader("Content-Type", "application/x-www-form-urlencoded"); QByteArray par=""; m_pNetworkAccessManager->post(request,par);

In answer to my original question i did something like this onUrlChanged: { console.log(searchwebview.url); test_json(); } and i made this function to parse the returned JSON ( this function is not perfect yet ) function test_json() { var p_url = searchwebview.url var http = new XMLHttpRequest(); var json , parse , text , rev_id; http.onreadystatechange = function(){ if(http.readyState == 4 && http.status == 200) { json = http.responseText; parse = JSON.parse(json); rev_id = parse.parse.revid; console.log(rev_id); text = parse.parse.text["*"]; //console.log(text); // <-- STRIP ME (o.O) while(text.match(/&#39;\/index.php/)){ text = text.replace(/&#39;\/index.php/, "http://en.wikitolearn.org/index.php"); text = text.replace(/&amp;/,"&"); text = text.replace(/MathShowImage&amp;/, "MathShowImage&") text = text.replace(/mode=mathml&#39;/, "mode=mathml\""); text = text.replace(/<meta class="mwe-math-fallback-image-inline" aria-hidden="true" style="background-image: url\(/ ,"<img style=\"background-repeat: no-repeat; background-size: 100% 100%; vertical-align: -0.838ex;height: 2.843ex; \" src=\""); text = text.replace(/<meta class="mwe-math-fallback-image-display" aria-hidden="true" style="background-image: url\(/ ,"<img style=\"background-repeat: no-repeat; background-size: 100% 100%; vertical-align: -0.838ex;height: 2.843ex; \" src=\""); text = text.replace(/&amp;mode=mathml\"/ , "&mode=mathml>\""); text = styling + text; } console.log(text); // after strip :p . webview.loadHtml(text); } }; http.open('GET',p_url); http.send(); }

Crap i mixed 2 codes. Sorry for that :m. Thank you everyone

@Gojir4 Sure, Thanks for your Help.