反序列化在C＃JSON数组列表 [英] deserialize json array list in c#

问题描述

我的工作有作为后端主要是C＃项目，但我不是一个有经验的C＃开发，所以我不能够想出热修复对象的列表的JSON反序列化。下面的函数是采取反序列化的照顾，但我得到一个错误：

I'm working on a project which has as backend mainly C#, but I'm not an experienced C# dev so I'm not able to figure out hot to fix a json deserialization of an list of objects. The following function is what takes care of the deserialization, but I get an error :

using System.IO;
using System.Web;
using Raven.Imports.Newtonsoft.Json;

namespace Corina.Web.Handlers
{
    public class JsonRequestHandler
    {
        public T Handle<T>(HttpContextBase context)
        {
            string requestData;

            context.Request.InputStream.Position = 0;
            using (var inputStream = new StreamReader(context.Request.InputStream))
            {
                requestData = inputStream.ReadToEnd();
            }

            return JsonConvert.DeserializeObject<T>(requestData, new Raven.Imports.Newtonsoft.Json.Converters.StringEnumConverter());           
        }
    }
}

错误：

无法反序列化当前的JSON数组（例如[1,2,3]）入式
  Corina.Web.Views.DocumentViewModel，因为类型需要一个JSON
  对象（例如{名：值}）。正确地反序列化

Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'Corina.Web.Views.DocumentViewModel' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.

要解决这个错误要么改变的JSON到一个JSON对象（如
  {名：价值}）或改变反序列化类型的数组或
  实现一个集合接口类型（如ICollection的，IList的）
  像列表可以从JSON数组反序列化。
  JsonArrayAttribute也可加入到用它强制类型
  从JSON反序列化数组

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 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.

谁能告诉我，我该怎么做反序列化对象而不是一个对象的名单上吗？

Can anyone tell me how do I make the deserialization on a list of objects instead of an object ?

推荐答案

您必须创建这个类，并创建一个类似的方法如下：

You have to create this class and create a method like below :

   public class Demo
   {
      public string Name;
      public string Type;
      public string Value;
      public string ChildContentType;
      public string ChildMetadata;
   }

    public void Deserialize()
    {
        string jsonObjString = "[{\"Name\": \"Description\",\"Type\": \"Text\",\"Value\": \"XXX\",\"ChildContentType\": \"Value\",\"C??hildMetadata\": \"YYY\"}]";
         var ser = new JavaScriptSerializer();
         var arreyDemoObj = ser.Deserialize<Demo[]>(jsonObjString);

         foreach (Demo objDemo in arreyDemoObj)
         {
             //Do what you want with objDemo
         }
      }

请注意，你需要添加<参考href=\"http://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer.aspx\"相对=nofollow>的JavaScriptSerializer 。

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