Question

我很难弄清楚为什么我的JSON没有在MVC控制器中正确反序列化。控制器操作在这里：

        [HttpPost]
        public IActionResult Post(MessageRequest messageRequest)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            Task.Run(() => _emailService.SendMessageAsync(messageRequest));

            return Ok();
        }

MessageRequest模型及其成员的定义如下：

    public class MessageRequest
    {
        [Required(ErrorMessage = "A message is required.")]
        [DataMember(Name="message")]
        public MessagePayload Payload { get; set; }

        [DataMember(Name="origin")]
        [Required(ErrorMessage = "An origin is required for every message.")]
        public Origin Origin { get; set; }
    }

    public class MessagePayload
    {
        [DataMember(Name = "from")]
        public EmailAddress From { get; set; }

        [DataMember(Name = "to")]
        public IEnumerable<EmailAddress> To { get; set; }

        [DataMember(Name = "cc")]
        public IEnumerable<EmailAddress> Cc { get; set; }

        [DataMember(Name = "bcc")]
        public IEnumerable<EmailAddress> Bcc { get; set; }

        [DataMember(Name = "subject")]
        public string Subject { get; set; }

        [DataMember(Name = "content")]
        public Content Content { get; set; }
    }

    public class Origin
    {
        [Required]
        [DataMember(Name = "origin_url")]
        public string Url { get; set; }

        [Required]
        [DataMember(Name = "origin_message_id")]
        public string MessageId { get; set; }
    }

我无法弄清楚为什么下面的JSON帖子请求没有正确反序列化。

{
   "message":{
      "from":"gumby@jacketforce.ca",
      "to":[
         {
            "name":"Bubba Gump",
            "email":"bubba.gump.dm@gmail.com"
         }
      ],
      "subject":"A new mail for mr bubbles",
      "content":{
         "html":"<html><h1>This is definitely html</h1></html>",
         "text":"This is a text email instead"
      }
   },
   "origin":{
      "origin_url":"http://requestb.in/bin",
      "origin_message_id":"MESSAGE_ID_DOESNT_MATTER"
   }
}

我尝试添加和删除 DataContract 和 DataMember 属性， FromBody 属性，删除序列化属性并更改属性的名称他们在JSON中的名字。一天早上，我开始工作，几乎神奇地，一切都在改变之后工作（无论如何都没有明显的）。据我所知，我发送的JSON完全根据提供的型号规格形成。有时我得到一个完全为空的动作参数，而有时候我会得到一个非null参数，它的所有属性都是null。

为什么我无法将JSON可靠地反序列化为我的某个对象类型？

Json没有在ASP.Net MVC Core中反序列化

0 个答案: