c# - 如何生成以整数为键的json字符串？

Question

我想用C#语言生成这样的json字符串

{
  "error": "0",
  "message": "messages",
  "data": {
    "version": "sring",
    "1": [
      {
        "keyword": "",
        "title": ""
      },
      {
        "keyword": "",
        "title": ""
      }
    ],
    "2": [
      ...
    ],
    "3": [
      ...
    ]
  }
}

这里有个问题，"1":[{},{}]，这部分如何生成？顺便说一句，我正在使用 asp.net mvc 项目，我想将此 json 字符串返回给客户端 Web 浏览器。

Answer 1

可以使用 Dictionary<string, object> 简单地生成此响应以数组作为值。

public class KeywordTitle
{
    public string keyword { get; set; }
    public string title { get; set; }
}

public class Response
{
    public string error { get; set; }
    public string message { get; set; }
    public Dictionary<string, object> data { get; set; }
}

var dictionary = new Dictionary<string, object> {
    {"version", "sring"}
};

dictionary.Add("1", new []
{
    new KeywordTitle { keyword = "", title = "" },
    new KeywordTitle { keyword = "", title = "" },
    new KeywordTitle { keyword = "", title = "" }
});

JsonConvert.SerializeObject(new Response
{
    error = "0",
    message = "messages",
    data = dictionary
});

它产生:

{
    "error" : "0",
    "message" : "messages",
    "data" : {
        "version" : "sring",
        "1" : [{
                "keyword" : "",
                "title" : ""
            }, {
                "keyword" : "",
                "title" : ""
            }, {
                "keyword" : "",
                "title" : ""
            }
        ]
    }
}

如果它是您的 API，那么最好提取 version为了使所有对象在data类型相同，键类型为 int .