51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
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#include "jsondecoderloop.h"
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#include <iostream>
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#include <QJsonArray>
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#include <QJsonObject>
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#include <QJsonDocument>
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#include <QStringList>
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JsonDecoderLoop::JsonDecoderLoop()
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{
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}
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QString JsonDecoderLoop::decode(const QByteArray byteArray, QString key)
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{
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// Check input
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if ( byteArray.isEmpty() || 0 == key.compare(""))
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{
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return "";
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}
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QString str = "";
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QJsonParseError jsonError;
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QJsonDocument jsonDoc = QJsonDocument::fromJson(byteArray, &jsonError);
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if(jsonError.error == QJsonParseError::NoError)
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{
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if(jsonDoc.isObject())
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{
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QJsonObject obj = jsonDoc.object();
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// Loop get value according the key world
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str = getValueBykey(obj, key);
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}
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}
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return str;
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}
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QString JsonDecoderLoop::getValueBykey(QJsonObject obj, QString key)
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{
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QString rst = "";
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QStringList strList = obj.keys();
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for (int i = 0; i < obj.size(); i++)
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{
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QJsonValue val = obj.value(strList.at(i));
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if ( strList.at(i) == key && val.isString())
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{
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rst = val.toString();
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}
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else if (val.isObject())
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{
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rst = getValueBykey(val.toObject(), key);
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}
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}
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return rst;
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}
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