从Json Http响应反序列化对象列表

时间:2016-09-30 17:57:35

标签: c# json serialization deserialization httpresponse

我有我的JSON响应:

{
  "Adddress": [
    {
      "Country": "United States",
      "City": "Irmo",
      "Line1": "103 Kinley Rd",
      "Line2": null,
      "PostalCode": "20063",
      "State": "SC",
      "AddressCode": "BILL-01"
    },
    {
      "Country": "United States",
      "City": "Irmo",
      "Line1": "1098 Kanley Road",
      "Line2": "Building B",
      "PostalCode": "29063",
      "State": "SC",
      "AddressCode": "SHIP-01"
    }]
}

这是我的地址类:

 [JsonObject()]
    public class Address
    {
        public string AddressCode { get; set; }
        public string Line1 { get; set; }
        public string Line2 { get; set; }
        public string Country { get; set; }
        public string State { get; set; }
        public string PostalCode { get; set; }
        public string City { get; set; }
    }

我有这个C#代码将这个http响应反序列化到我的对象列表中:

HttpResponseMessage response = client.GetAsync(urlParameters).Result;  // Blocking call!
if (response.IsSuccessStatusCode)
{
    var dataObjects = response.Content.ReadAsAsync<Adddress>().Result;//JsonConvert.DeserializeObject<List<RestResponse>>(response.Content.ReadAsStringAsync().Result);//
    foreach (var d in dataObjects)
    {
        Console.WriteLine("{0}", d.Country);
    }
}

但是我收到了这个错误:

  

附加信息:无法将当前JSON对象(例如{“name”:“value”})反序列化为类型'System.Collections.Generic.IEnumerable`1 [TestREST.Program + RestResponse]',因为该类型需要JSON数组(例如[1,2,3])正确反序列化。

     

要修复此错误,请将JSON更改为JSON数组(例如   [1,2,3])或更改反序列化类型,使其成为正常的.NET   type(例如,不是像整数这样的基本类型,不是集合类型   像数组或List一样,可以从JSON对象反序列化。   JsonObjectAttribute也可以添加到类型中以强制它   从JSON对象反序列化。

     

路径'RestResponse',第2行,第19位。

我应该怎样做才能使我的去除药物?

1 个答案:

答案 0 :(得分:5)

Adddress是单一的,你进入的json是一个地址数组(所以多于一个),你必须将其反序列化为例如AddressList包含多个地址

string json = "{\"Adddress\":[{\"Country\":\"United States\",\"City\":\"Irmo\",\"Line1\":\"103 Kinley Rd\",\"Line2\":null,\"PostalCode\":\"20063\",\"State\":\"SC\",\"AddressCode\":\"BILL - 01\"},{\"Country\":\"United States\",\"City\":\"Irmo\",\"Line1\":\"1098 Kanley Road\",\"Line2\":\"Building B\",\"PostalCode\":\"29063\",\"State\":\"SC\",\"AddressCode\":\"SHIP - 01\"}]}";

 var dataObjects = JsonConvert.DeserializeObject<AddressList>(json);
 foreach (var d in dataObjects.Adddress)
 {
     Console.WriteLine("{0}", d.Country);
 }

类:

public class Adddress
{
    [JsonProperty("Country")]
    public string Country { get; set; }

    [JsonProperty("City")]
    public string City { get; set; }

    [JsonProperty("Line1")]
    public string Line1 { get; set; }

    [JsonProperty("Line2")]
    public string Line2 { get; set; }

    [JsonProperty("PostalCode")]
    public string PostalCode { get; set; }

    [JsonProperty("State")]
    public string State { get; set; }

    [JsonProperty("AddressCode")]
    public string AddressCode { get; set; }
}

public class AddressList
{
    [JsonProperty("Adddress")]
    public IList<Adddress> Adddress { get; set; }
}