客户端生成的JSON存储在MongoDB服务器端，应用程序/JSON解析不正确？

我会很简短；我有一个可以创建“测验”的工具，这是一系列附有答案的问题，可以发送到服务器并存储到MongoDB。我已经试着按照我的想法去做，但是承诺的结果与我得到的结果不匹配

我希望JSON由嵌套对象组成，如下所示：

{
    "_id": "54a884c68999af900fc28dcb",
    "name": "testquiz",
    "author": "user",
    "questions": [
        {
            "text": "question one",
            "answers": [
                {
                    "text": "answer one",
                    "correct": false
                },
                {
                    "text": "answer two",
                    "correct": true
                }
            ]
        },
        {
            "text": "question two",
            "answers": [
                {
                    "text": "answer one",
                    "correct": true
                },
                {
                    "text": "answer two",
                    "correct": false
                }
            ]
        }
    ]
}

但是，我只能得到如下结果：

 {
    "_id": "54a8b00108039068102f8835",
    "quizname": "World War II",
    "questions[0][text]": "When did WWII start?",
    "questions[0][answers][0][text]": "1938",
    "questions[0][answers][1][iscorrect]": "on",
    "questions[0][answers][1][text]": "1939",
    "questions[0][answers][2][text]": "1944",
    "questions[0][answers][3][text]": "1914",
    "questions[1][text]": "",
    "questions[1][answers][0][text]": "",
    "questions[1][answers][1][text]": "",
    "author": "user"
}

---

我做错了什么？我是一个新手，非常感谢你的帮助。

我明白了。我花了很多令人尴尬的时间，也花了很多令人心碎的搜索，但它确实奏效了

    $('#savequiz').click(function () {
        obj = {
            quizname: $('#quizname').val(),
            author: "",
            questions: []
        };

        for (var i = 0; i < questionCount; i++) {
            obj.questions.push({
                text: $('#question_' + i).val(),
                answers: []
            });

            for (var j = 0; j < answerCount[i]; j++) {
                obj.questions[i].answers.push({
                    text: $('#question_' + i + '_answer_' + j + ' > div > input').val(),
                    correct: $('#question_' + i + '_answer_' + j + ' > div > span > input[type="checkbox"]').is(':checked')
                });
            }
        }

        $.ajax({
            url: '/quiz/new',
            type: "POST",
            data: JSON.stringify(obj),
            processData: false,
            contentType: "application/json; charset=UTF-8"
        });

        return false;
    });

app.post('/quiz/new', function (req, res, next) {
    if (!req.session.loggedin) {
      res.status(401).end();
      return;
    }

    var quiz = req.body;
    quiz.author = req.session.username;

    db.collection('quiz', function (err, collection) {
      collection.insert(quiz, {safe: true}, function (err, result) {
        if (err) {
            console.log('Failed to persist quiz!');
            res.send({'error': 'An error has occurred'});
            return;
        }

        console.log("Successfully persisted quiz.");
        res.redirect('/');
    });
});