【问题标题】:Newtonsoft.Json Deserialize failsNewtonsoft.Json 反序列化失败
【发布时间】:2019-02-28 01:20:27
【问题描述】:

重构一个类后,用

序列化它
file.Write(JsonConvert.SerializeObject(this, Formatting.Indented));

按预期工作并生成此问题中描述的 json 文件。 但是,反序列化不再起作用。

http://json2csharp.com 能够正确检索对象结构。

来源/目的地类型

 public class VinciModel
    {
        public string Name { get; set; }
        public string VidiWorkspaceDir { get; set; }
        public string ViDiWorkspaceName { get; set; }

        public int NRows { get; set; }
        public List<List<object>> Rows { get; set; }
        public int NChocolates { get; set; }
        public List<StreamInfo> StreamList { get; set; }
        public float BlisterWidth { get; set; }
        public float BlisterHeight { get; set; }
    }

    public class Socket
    {
        public int Index { get; set; }
        public string StreamName { get; set; }
        public Rectangle ROI { get; set; }
    }

    public class StreamInfo
    {
        public string StreamName { get; set; }
        public List<Socket> Sockets { get; set; } = new List<Socket>();
    }
}

源/目标 JSON

{
  "Name": "sdgsd",
  "VidiWorkspaceDir": "D:\\VidiProjects\\VidiWorkspace-demo",
  "ViDiWorkspaceName": "box2shrink_2",
  "NRows": 1,
  "Rows": [
    [
      {
        "Index": 0,
        "StreamName": "mystream",
        "ROI": "0, 0, 5, 51"
      },
      {
        "Index": 0,
        "StreamName": "1",
        "ROI": "5, 0, 5, 51"
      },
      {
        "Index": 0,
        "StreamName": "2",
        "ROI": "11, 0, 5, 51"
      },
      {
        "Index": 0,
        "StreamName": "mystream",
        "ROI": "17, 0, 5, 51"
      }
    ]
  ],
  "NChocolates": 4,
  "StreamList": [
    {
      "StreamName": "mystream",
      "Sockets": [
        {
          "Index": 0,
          "StreamName": "mystream",
          "ROI": "0, 0, 5, 51"
        },
        {
          "Index": 0,
          "StreamName": "mystream",
          "ROI": "17, 0, 5, 51"
        }
      ]
    },
    {
      "StreamName": "1",
      "Sockets": [
        {
          "Index": 0,
          "StreamName": "1",
          "ROI": "5, 0, 5, 51"
        }
      ]
    },
    {
      "StreamName": "2",
      "Sockets": [
        {
          "Index": 0,
          "StreamName": "2",
          "ROI": "11, 0, 5, 51"
        }
      ]
    }
  ],
  "BlisterWidth": 23.0,
  "BlisterHeight": 51.0
}

错误

Newtonsoft.Json.JsonReaderException: '解析值时遇到意外字符:{.路径“行 [0]”,第 8 行,位置 7。

重现步骤

using (var file = new System.IO.StreamReader(path))
    JsonConvert.DeserializeObject<VinciModel>(file.ReadToEnd());

在类被重构之前工作

我也试过了:

var obj = JsonConvert.DeserializeObject<JObject>(file.ReadToEnd());

并得到: '错误读取字符串。意外标记:StartObject。路径'行[0][0]'。'

【问题讨论】:

    标签: json.net


    【解决方案1】:

    问题是我的类有一个非默认构造函数,也没有默认构造函数。错误信息无关紧要。

    【讨论】:

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