Create JSON-File

NotYourFan

Hey,

iam trying to create in QT5 a JSON-File that Looks like:

{
  "ConfigFile": [
    {
      "name": "Car",
      "valueName": "CarValue",
      "actual": {
        "actual": 140
      },
      "upper": {
        "actual": 120.1
      },
      "lower": {
        "actual": 2
      }
    },
    {
      "name": "Car2",
      "valueName": "CarValue2",
      "actual": {
        "actual": 1.2
      },
      "upper": {
        "actual": 22.1
      },
      "lower": {
        "actual": 5
      }
    }
  ]
}

I try to created with QJsonArray , QJsonObject and QJsonDocument.

jsulm

@NotYourFan What's your question?

NotYourFan

how can i create a JSON-File with this structure ?

jsulm

@NotYourFan Using the classes you mentioned.
What exactly is the problem?

NotYourFan

i dont know how to get this structure with QT.
I want to get later a file with exactly the structure like at the top.

jsulm

@NotYourFan Take a look at this example: https://doc.qt.io/qt-5/qtcore-serialization-savegame-example.html

NotYourFan

okay, so now i cant insert into a JsonObject:

QJsonObject object;
object.insert("name", hgvc->value)

how can i insert a String and a double into a Object??

Gojir4

@NotYourFan Hi,
Just use the same way to insert string or double values

QJsonObject json;
json["string"] = "Hello World";
json["double"] = 1.234
json["int"] = 1234
QJsonArray a;
a.append(1);
a.append(2);
a.append(3);
a.append(4);
json["array"] = a;
QJsonObject child;
child["string"] = "Hello World";
child["double"] = 1.234;
child["int"] = 1234;
json["child_object"] = child;

//Retrieve values
QString str = json["string"].toString();
double d = json["double"].toDouble();
int i = json["int"].toInt();
QJsonArray a = json["array"].toArray();
for(int ai = 0; ai < a.size(); ai++){
    int value = a.at(i).toInt();
}
QJsonObject child = json["child_object"].toObject();
QString strChild = child["string"].toString();
double dChild = child["double"].toDouble();
int iChild = child["int"].toInt();

NotYourFan

Hey @Gojir4 thank you for your answer :)

i have a Problem with the Depth.

{
  "ConfigFile": [
    {
      "name": "Car",
      "valueName": "CarValue",
      "actual": {
        "actual": 140
      },
      "upper": {
        "actual": 120.1
      },
      "lower": {
        "actual": 2
      }
    },
    {
      "name": "Car2",
      "valueName": "CarValue2",
      "actual": {
        "actual": 1.2
      },
      "upper": {
        "actual": 22.1
      },
      "lower": {
        "actual": 5
      }
    }
  ]
}

do you have a explcite exmaple?
Thank You !!