将数组添加到更高维数组

Question

我正在创建一个从网站获取信息和下载电影的应用程序。我已经成功地将信息设置在不同的数组中，并将它们组合到一个数组中。

但是，现在我试图将该数组放入一个更大的数组中（想要使用 JSON），但这是失败的。

我当前的 Json 输出如下所示：

 {"moviedata": 
    ["http:/xxxx","title title ","k0X0HrYtMm5u"],"tags": 
    ["x","x","x","Prop","x","x","x","x","x","x","x"],"categorydata": 
    ["x","x","x"]}

通过以下代码实现：

Dictionary<string, string[]> movie = new Dictionary<string, string[]>();

moviedata.Add("moviedata", moviegenerala);
moviedata.Add("tags", tagsa);
moviedata.Add("categorydata", categoriesa);
string moviejson = JsonConvert.SerializeObject(moviedata);

我想在此之上添加另一个图层，因此有一个名为“电影”的常规选项卡，并且对于每部电影，它都有此信息。我该怎么做？

更新： 添加此代码：

var myShape = new
    {
        Movie = new Dictionary<string, string[]>
        {
            ["moviedata"] = moviegenerala,
            ["tags"] = tagsa,
            ["categorydata"] = categoriesa,
            ["localdata"] = localdataa
        }
    };
    var moviejson = JsonConvert.SerializeObject(myShape);

JSON 似乎是正确的，但它无法解析，在第一个列表之后它说在右括号后面有文本。

更新： 将代码更改为：

Dictionary<string, string[]> movies = new Dictionary<string, string[]>();
                                var myShape = movies.Select(m => new
                                {
                                    Movie = new Dictionary<string, string[]>
                                    {
                                        // TODO - you'll need to get the appropriate data for this movie
                                        ["moviedata"] = moviegenerala,
                                        ["tags"] = tagsa,
                                        ["categorydata"] = categoriesa,
                                        ["localdata"] = localdataa
                                    }

                                });

                                var moviejson = JsonConvert.SerializeObject(myShape);
                                File.AppendAllText("moviedata.txt", moviejson);

但现在它只给出空括号:(

Answer 1

如果这是一次性序列化，那么最简单的方法就是用匿名类包装 Dictionary，添加额外的属性缩进，例如

var myShape = new 
{
     Movie = new Dictionary<string, string[]>
     {
         ["moviedata"] = moviegenerala,
         ["tags"] = tagsa,
         ["categorydata"] = categoriesa
     }
};
var moviejson = JsonConvert.SerializeObject(myShape);

但是，如果您的代码中的多个位置都需要相同的形状，那么我建议您为您的“形状”创建一个完全成熟的类。

编辑：

上面生成的json是

{
  "Movie": {
    "moviedata": [ "http:/xxxx", "title title ", "k0X0HrYtMm5u" ],
    "tags": [ "x", "x", "x", "Prop", "x", "x", "x", "x", "x", "x", "x" ],
    "categorydata": [ "x", "x", "x" ]
  }
}

如果您需要映射多个电影，然后进行投影，则可以使用.Select：

// TODO : Replace this with your actual current movies
var inMovies = new[] {new Movie{...},new Movie {...}, ...};
var myShape = inMovies.Select(m => new
{
    Movie = new Dictionary<string, string[]>
    {
        // TODO - you'll need to get the appropriate data for this movie, e.g. m.moviegenerala
        ["moviedata"] = moviegenerala, 
        ...
    }
});

产生以下内容：

[
  {
    "Movie": {
      "moviedata": [ "http:/xxxx", "title title ", "k0X0HrYtMm5u" ],
      "tags": [ "x", "x", "x", "Prop", "x", "x", "x", "x", "x", "x", "x" ],
      "categorydata": [ "x", "x", "x" ]
    }
  },
  {
    "Movie": {
      "moviedata": [ "http:/xxxx", "title title ", "k0X0HrYtMm5u" ],
      "tags": [ "x", "x", "x", "Prop", "x", "x", "x", "x", "x", "x", "x" ],
      "categorydata": [ "x", "x", "x" ]
    }
  }
]