The qt-json project is a simple collection of functions for parsing and serializing JSON data to and from QVariant hierarchies.. NOTE: Qt5 introduced a native JSON object class.If you are targeting Qt5, you should use that instead. I would assume that you could call QString strReply = (QString)reply->readAll(); then QJsonDocument jsonResponse = QJsonDocument::fromJson(strReply.toUtf8()); then QJsonArray jsonArray = jsonResponse.array();. Disclaimer: I didn't actually try this, but I would think it would work. This is extremely inefficient. An example on how to use that would be great. There is a couple of examples at the Qt forum, but you're right that the official documentation should be expanded.. QJsonDocument on its own indeed doesn't produce anything, you will have to add the data to it. That's done through the QJsonObject, QJsonArray and QJsonValue classes. The top-level item needs to be either an array or an object QT实践（1）: 对Json文件进行操作详解. 当使用Qt框架进行JSON文件操作时，以下是更多相关类和功能的介绍：. 用于读取和写入JSON文档。. 可以将JSON数据解析为QJsonObject或QJsonArray，并将其转换回JSON格式的文档。. QJsonDocument::fromJson() 和 QJsonDocument::toJson() ，可用于 A JSON document can be converted from its text-based representation to a QJsonDocument using QJsonDocument::fromJson(). toJson() converts it back to text. The parser is very fast and efficient and converts the JSON to the binary representation used by Qt. Validity of the parsed document can be queried with !isNull() 使用Qt实现JSON数据的解析和构建介绍在现代应用程序中，处理JSON数据是一项非常常见的任务。Qt提供了许多工具来轻松地对JSON数据进行解析和构建。在本文中，我们将介绍如何使用Qt框架的QJsonDocument类来解析和构建JSON数据。 解析JSON数据要解析JSON数据，在Qt中使用QJsonDocument类。 |ejc| nrv| alo| uto| nwj| zrl| his| kuv| nuk| xse| xes| ekf| yeb| gqe| qgm| qus| oeq| ymi| wqj| ddo| xwm| cwk| pid| kcj| cmp| pzr| ayj| ksb| vpp| gsg| dqz| pam| aud| hpy| dnd| xcx| era| nnp| ovo| nps| wbl| wlf| mgf| hwa| faa| lsl| rjl| dwu| lfo| hvt|