使用JSON.NET将JSON转换为C＃对象

Question

我已经搜索了许多网站，并将各种解决方案部署到我的Web服务器上，只是发现到目前为止我遇到的任何事情都实际上有效。我有以下JSON：

["{"EntryNo":4,"Title":"New Title","Summary":"New Summary","Body":"New Body","CreatedOn":"2017-03-03T03:53:16.2955903+00:00","CreatedBy":"Jim Jones","ModifiedBy":"Jim Jones","ModifiedOn":"2017-02-25T07:06:32.517","Deleted":false,"TypeId":1}",
"{"EntryNo":5,"Title":"Old Title","Summary":"Old Summary","Body":"Old Body","CreatedOn":"2017-03-03T03:53:16.2955903+00:00","CreatedBy":"Ben Jones","ModifiedBy":"Ben Jones","ModifiedOn":"2017-02-25T07:06:32.593","Deleted":false,"TypeId":1}"
]

我的模型看起来如下：

public class BlogVM
{
    [JsonProperty(PropertyName = "EntryNo")]
    public int EntryNo { get; set; }
    [JsonProperty(PropertyName = "Title")]
    public string Title { get; set; }
    [JsonProperty(PropertyName = "Summary")]
    public string Summary { get; set; }
    [JsonProperty(PropertyName = "Body")]
    public string Body { get; set; }
    [JsonProperty(PropertyName = "CreatedOn")]
    public DateTime CreatedOn { get; set; }
    [JsonProperty(PropertyName = "ModifiedOn")]
    public DateTime ModifiedOn { get; set; }
    [JsonProperty(PropertyName = "CreatedBy")]
    public string CreatedBy { get; set; }
    [JsonProperty(PropertyName = "ModifiedBy")]
    public string ModifiedBy { get; set; }
    [JsonProperty(PropertyName = "Deleted")]
    public bool Deleted { get; set; }
    [JsonProperty(PropertyName = "TypeId")]
    public int? TypeId { get; set; }
}

，我的控制器方法是hodgepodge ...

public async Task<ActionResult> _ActualBlogContent()
{
    HttpClient client = new HttpClient();
    client.BaseAddress = new System.Uri("wwww.myapiaddresshere.com");
    client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
    HttpResponseMessage response = client.GetAsync("api/entry/").Result;
    if (response.IsSuccessStatusCode)
    {
        var dataObjects = response.Content.ReadAsStringAsync();
        List<BlogVM> pdone = JsonConvert.DeserializeObject<List<BlogVM>>(dataObjects.Result);
    }
    return View();
}

我收到的错误消息：

无法从System.String施放或转换为Models.blog.blogvm

我想念什么？另外，FWIW JSON2CSHARP不起作用。我通过的所有json都失败了。...但是，如果我在jsonlint.com上验证儿子，它将通过验证测试。

我对这里缺少的东西感到非常困惑。我只是错误地使用框架吗？

Answer 1

我认为您的JSON不如您想象的那么好。由于在各个地方有一些错误的报价，我无法得到您发布的验证。

我通过此JSON格式化了您发布的内容，它给了我各种错误，包括它期望的字符串的错误。这是因为一开始就具有["{。当值得注意时，它会期望撑杆（{），但您给它报价（"），因此是错误消息。您有一些像这样的地方，可以预期撑杆，但可以找到一句。

这是一些清理干净的JSON。这应该可以很好。

[
   {
      "EntryNo":4,
      "Title":"New Title",
      "Summary":"New Summary",
      "Body":"New Body",
      "CreatedOn":"2017-03-03T03:53:16.2955903+00:00",
      "CreatedBy":"Jim Jones",
      "ModifiedBy":"Jim Jones",
      "ModifiedOn":"2017-02-25T07:06:32.517",
      "Deleted":false,
      "TypeId":1
   },
   {
      "EntryNo":5,
      "Title":"Old Title",
      "Summary":"Old Summary",
      "Body":"Old Body",
      "CreatedOn":"2017-03-03T03:53:16.2955903+00:00",
      "CreatedBy":"Ben Jones",
      "ModifiedBy":"Ben Jones",
      "ModifiedOn":"2017-02-25T07:06:32.593",
      "Deleted":false,
      "TypeId":1
   }
]

您问题的真正根源是那个不良形式的JSON来自哪里。