使用 Qt 解析 JSON 数组

Question

我正在尝试使用 Qt 为 online dictionary site 编写桌面客户端。我在一些关于 JSON 的问题上卡住了。

http://ac.tureng.co/?c=?&t=expensive

?(["expensive","expensive habits","expensive medical equipment","expensive question","expensive watch","expensive-looking","expensively","expensiveness"]);

我认为来自上述地址的数据是 JSON 数组。 json.org 有如下描述：

数组是值的有序集合。数组以 [ 开头 （左括号）并以 ] 结尾（右括号）。值是分开的 由 ,（逗号）。*

如果写入的是字符串而不是第一个问号，则也是根据 JSON Formatter 的有效 JSON：

a([  
   "expensive",
   "expensive habits",
   "expensive medical equipment",
   "expensive question",
   "expensive watch",
   "expensive-looking",
   "expensively",
   "expensiveness"
]);

但对于JSONLint 站点来说，这种变化还不够：

["expensive", "expensive habits", "expensive medical equipment", "expensive question", "expensive watch", "expensive-looking", "expensively", "expensiveness"]

我想使用此处的数据在用户输入时向用户显示建议。目前我无法提取 JSON，因此我通过将其作为纯文本来实现所需的行为。有没有办法通过解析 JSON 来正确地做到这一点？

目前我写的代码是：

    QString turengOneriMetin = QString("http://ac.tureng.co/?c=?&t=%1").arg(arg1);
    QUrl turengOneri(turengOneriMetin);

    QNetworkAccessManager manager;
    QNetworkReply *response = manager.get(QNetworkRequest(turengOneri));
    QEventLoop event;
    connect(response, SIGNAL(finished()), &event, SLOT(quit()));
    event.exec();
    QString content = response->readAll();

    content.replace(0,1,"a");

    content = content.replace("a([", "").replace("]);", "").replace("\"","");


    QStringList wordList;

    wordList << content.split(",");

    ui->label->setText(content);

    // https://stackoverflow.com/questions/24248606/how-to-accomplish-drop-down-word-suggestions-in-qt
    QCompleter *completer = new QCompleter(wordList, this);
    completer->setCaseSensitivity(Qt::CaseInsensitive);
    ui->lineEdit->setCompleter(completer);

更新：在答案和other resources 的帮助下正确接收 JSON 后，我已经使用以下代码完成了我想要的：

QJsonDocument document = QJsonDocument::fromJson(content.toUtf8());
QJsonArray documentArray = document.array();

QStringList wordList;

for (const QJsonValue &i : documentArray)
{
    //qInfo() << i.toString() << endl;
    wordList << i.toString();
}

Answer 1

我认为 URL 应该是这个 - http://ac.tureng.co/?t=expensive

在这种情况下，您将获得有效的 JSON。