Newtonsoft.Json 序列化

当我们对一个json数组进行反序列化用Newtonsoft.Json.JsonConvert.DeserializeObject<T>() 通常会报此错误

Newtonsoft.Json.dll 中发生，但未在用户代码中进行处理

其他信息: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'MyHttp.Controllers.ValuesController+ProvinceModel' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.

To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List<T> that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.

Path '', line 1, position 1.

  　　　　public void PostProvince()
         {
             var retString = "[{\"ProvinceName\":\"湖北省\"},{\"ProvinceName\":\"河北省\"}]";
             var provinces = Newtonsoft.Json.JsonConvert.DeserializeObject<ProvinceModel>(retString);
         }

         public class ProvinceModel
         {
             public string ProvinceName { get; set; }         }

解决方案

  　　　　public void PostProvince()
         {
             var retString = "[{\"ProvinceName\":\"湖北省\"},{\"ProvinceName\":\"河北省\"}]";
             var provinces = Newtonsoft.Json.JsonConvert.DeserializeObject<List<ProvinceModel>>(retString);
         }