反序列化RESTSharp JSON响应

Question

我正在一个项目中，以从NOAA收集数据。我在弄清楚如何使响应可用时遇到了麻烦。

这是我的电话收到的NOAA的API响应：

{
    "metadata": {
        "resultset": {
            "offset": 1,
            "count": 38859,
            "limit": 2
        }
    },
    "results": [
        {
            "mindate": "1983-01-01",
            "maxdate": "2019-12-24",
            "name": "Abu Dhabi, AE",
            "datacoverage": 1,
            "id": "CITY:AE000001"
        },
        {
            "mindate": "1944-03-01",
            "maxdate": "2019-12-24",
            "name": "Ajman, AE",
            "datacoverage": 0.9991,
            "id": "CITY:AE000002"
        }
    ]
}

我使用JSON2CSharp.com将结果集转换为所需的类。下面是相关代码：

public class NOAA
{
    public class Resultset
    {
        public int offset { get; set; }
        public int count { get; set; }
        public int limit { get; set; }
    }

    public class Metadata
    {
        public Resultset resultset { get; set; }
    }
    public class Location
    {
        public string mindate { get; set; }
        public string maxdate { get; set; }
        public string name { get; set; }
        public double datacoverage { get; set; }
        public string id { get; set; }
    }
    public class RootObject
    {
        public Metadata metadata { get; set; }
        public List<Location> results { get; set; }
    }
    public class Response
    {
        IList<Metadata> metadata;
        IList<Location> results;
    }
    public void RestFactory(string Token, string Endpoint, Dictionary<string, string> Params)
    {
        // Initiate the REST request
        var client = new RestClient("https://www.ncdc.noaa.gov/cdo-web/api/v2/" + Endpoint);
        var request = new RestRequest(Method.GET);

        // Add the token
        request.AddHeader("token", Token);

        // Add the parameters
        foreach (KeyValuePair<string, string> entry in Params)
        {
            request.AddParameter(entry.Key, entry.Value);
        }

        // Execute the REST request
        var response = client.Execute(request);

        // Deserialize the response
        Response noaa = new JsonDeserializer().Deserialize<Response>(response);

        // Print to console
        foreach (Location loc in noaa)
        {
            Console.WriteLine(loc.name);
        }
    }
}

至此，我只是试图打印位置名称以达到我的下一个学习里程碑。我遇到了错误：

Severity    Code    Description Project File    Line    Suppression State
Error   CS1579  foreach statement cannot operate on variables of type 'NOAA.Response' because    'NOAA.Response' does not contain a public instance definition for 'GetEnumerator'

除了错误之外，我认为我不太了解正确的方法，因为响应具有多个“层”。指导？

Answer 1

您的foreach循环尝试在对象本身而不是其中的列表上调用迭代器。

尝试此方法

        foreach (Location loc in noaa.results)
        {
            Console.WriteLine(loc.name);
        }

Answer 2

我可以告诉您错误原因。那是因为noaa是不可迭代的。如果要迭代任何对象，则需要实现IEnumerable接口。这是因为noaa是不可迭代的。 noaa不会继承或实现此接口。如果使用noaa.results，是否会得到相同的错误？