c# - 我有 JSON 响应具有不同名称的对象，但所有对象都具有相同的变量

Question

我正在从 C# 连接一个 REST api。我有 Json 响应，其中包含几个具有不同名称的错误对象，但所有对象都具有相同的变量:标题，消息，并显示。

对象的数量随每个 API (REST) 请求而变化，响应对象的名称因请求而异。但是每个错误中的变量与上面相同。

我需要从该响应中获得的信息只是消息文本，但如果我获得错误对象列表以便我可以通读错误消息，这将是可以接受的。

这是 JSON 响应:

  {
    "errors": {
        "missingparameter_general_paymenttype": {
            "title": "",
            "message": "You must enter 'general_paymenttype'.",
            "display": ""
        },
        "missingparameter_contact_title": {
            "title": "",
            "message": "You must enter 'contact_title'.",
            "display": ""
        },
        "missingparameter_contact_firstname": {
            "title": "",
            "message": "You must enter 'contact_firstname'.",
            "display": ""
        },
        "missingparameter_contact_lastname": {
            "title": "",
            "message": "You must enter 'contact_lastname'.",
            "display": ""
        },
        "missingparameter_contact_email": {
            "title": "",
            "message": "You must enter 'contact_email'.",
            "display": ""
        },
        "missingparameter_contact_telephone": {
            "title": "",
            "message": "You must enter 'contact_telephone'.",
            "display": ""
        },
        "invalidparameter_pricing_currency": {
            "title": "",
            "message": "Invalid value for 'pricing_currency'.",
            "display": ""
        },
        "missingparameter_pricing_saleprice": {
            "title": "",
            "message": "You must enter 'pricing_saleprice'.",
            "display": ""
        },
        "missingparameter_transfers": {
            "title": "",
            "message": "You must enter 'transfers'.",
            "display": ""
        }
    }
}

Answer 1

class Errors
{
    public Dictionary<string, Error> errors { get; set; }
    public class Error
    {
        public string title { get; set; }
        public string message { get; set; }
        public string display { get; set; }
    }
}

static void Main(string[] args)
{
    string errorText = @"{
""errors"": {
""missingparameter_general_paymenttype"": {
""title"": """",
""message"": ""You must enter 'general_paymenttype'."",
""display"": """"
},
""missingparameter_contact_title"": {
""title"": """",
""message"": ""You must enter 'contact_title'."",
""display"": """"
},
""missingparameter_contact_firstname"": {
""title"": """",
""message"": ""You must enter 'contact_firstname'."",
""display"": """"
},
""missingparameter_contact_lastname"": {
""title"": """",
""message"": ""You must enter 'contact_lastname'."",
""display"": """"
},
""missingparameter_contact_email"": {
""title"": """",
""message"": ""You must enter 'contact_email'."",
""display"": """"
},
""missingparameter_contact_telephone"": {
""title"": """",
""message"": ""You must enter 'contact_telephone'."",
""display"": """"
},
""invalidparameter_pricing_currency"": {
""title"": """",
""message"": ""Invalid value for 'pricing_currency'."",
""display"": """"
},
""missingparameter_pricing_saleprice"": {
""title"": """",
""message"": ""You must enter 'pricing_saleprice'."",
""display"": """"
},
""missingparameter_transfers"": {
""title"": """",
""message"": ""You must enter 'transfers'."",
""display"": """"
}
}}";
    var error = JsonConvert.DeserializeObject<Errors>(errorText);
    foreach (var kv in error.errors)
    {
        Console.WriteLine(kv.Value.message);
    }
}

你需要添加使用Newtonsoft.Json，或者你也可以像这样使用Regex

string patten = @"""message""\s*:\s*""([^""]*)""";
foreach (Match match in Regex.Matches(errorText, patten))
{
    Console.WriteLine(match.Groups[1].Value);
}