如何用整数作为键生成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": [
      ...
    ]
  }
}

这里有一个问题,"1":[{},{}],如何生成这部分？我顺便使用asp.net mvc项目,我想将这个json字符串返回给客户端Web浏览器.

Answer 1

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

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,则最好提取version以使所有对象data具有相同类型和类型的键int.

Answer 2

从中获取Json.NETNuGet.然后,在您的MVC模型中,在data annotationArray属性上使用它

[JsonProperty(PropertyName="1")]
public string[] YourProperty { get; set }

将PropertyName数据序列化时,将使用该值JSON.