qjson

JSON的解析要对照JSON字符串来理解，关于JSON字符串的介绍，可以参考 JSON简介 首先，解析和构建都要包含如下头文件： #include <QJsonDocument> #include <QJsonObject> #include <QJsonArray> 示例1：和风天气实时数据 这个 JSON 字符串中 HeWeather6 键的值是一个数组，数组内只有 1 个 JSON 对象，这个对象里又嵌套了几个 JSON 对象。 { "HeWeather6": [{ "basic": { "cid": "CN101010700", "parent_city": "北京", "cnty": "中国", }, "status": "ok", }] } 主要是 JSON 的多层嵌套的解析。解析函数： int Parse_HeWeather_Now_Json(void) { QJsonParseError err_rpt; QJsonDocument root_Doc = QJsonDocument::fromJson(he_now_json, &err_rpt); // 字符串格式化为JSON if(err_rpt.error != QJsonParseError::NoError) { qDebug() << "JSON格式错误"; return -1; } else //

I am currently using Qt5.0 with the core QJson library to handle some data for the program I am developing. To set the scene for this question I will provide you with some JSON data that illustrates my problem: { "CLOCKS": [ { "ID": "clk", "MAX": 2e+08, "MIN": 1e+07, "VALUE": "no_clock" }, { "ID": "memclk", "MAX": 2e+08, "MIN": 1e+07, "VALUE": "memclk" } ] } Here we have a parent QJsonObject containing a single key 'CLOCKS'. The value for this key is a QJsonArray of QJsonObjects that contain a number of key/value pairs that contain my data. If I wanted to retrieve the QJsonObject with id 'clk'

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 Just to mention, as of Qt5, JSON is officially supported: JSON Support in Qt QVariant id(1), name("John Doe"); QJsonObject json; json["Name"] = name.toString(); json.insert("id", id.toInt()); chalup Parsing JSON with QT using standard QT library . BTW: why don't you want to use QJson? It nicely encapsulates all the QScriptValueIterator stuff, making your code easier to read. See this JSON Save Game example on serialization of an object to a JSON document. There are

QT5支持JSON处理，但离Realse还会有些日子，所以选择QJson，用QJson处理JSON数据很严格，对象属性名称必须加双引号，否则会抛出格式不正确的错误信息。因为JSON格式能描述的数据类型有限，所以只处理整型，字符串，数字，数组，布尔，对象这几种数据类型。 下面就是利用JSON数据态创建QtPropertyBrowser。 { "encoding" : "UTF-8", "plug-ins" : [ "python", "c++", "ruby" ], "indent" : { "length" : 3, "use_space" : true, "orientation":["Left","Right","Center","Bottom"] } } 效果： 来源： oschina 链接： https://my.oschina.net/u/69166/blog/78163

I need to parse JSON object through Qt. What is the easiest/fastest way to do it? Etienne Savard Try QJson . QJson is actively developed (and used by KDE, if I'm not mistaken). The best is to checkout the source code directly and built it yourself. There is no dependencies to QJson (except for Qt and CMake). It's pretty simple to use too, have a look at some usage examples : http://qjson.sourceforge.net/usage/ JSON parsing is now supported in Qt 5. Here's how to load and parse a document: #include <QByteArray> #include <QFile> #include <QJsonObject> #include <QJsonDocument> // ... // Read JSON