.NET CORE：避难所化问题＆＃x2B;如何更好地了解无用的错误文本

Question

我有以下JSON，我通过验证器和“将JSON粘贴为类粘贴”来构建Visual Studio中的模型：

{
  "entity": {
    "Successful Requests": [
      {
        "Status": 201,
        "Resource ID": 34715818,
        "Message": "Created resource 1 at URI: /rest/equipment/ids/34715818"
      },
      {
        "Status": 201,
        "Resource ID": 34715838,
        "Message": "Created resource 2 at URI: /rest/equipment/ids/34715838"
      }
    ],
    "Failed Requests": [
      {
        "Status": 500,
        "Resource ID": -1,
        "Message": "Failed to create new resource 1. Bulk update failed. Cause: Template 'xxx' not found."
      },
      {
        "Status": 500,
        "Resource ID": -1,
        "Message": "Failed to create new resource 2. Bulk update failed. Cause: Template 'xxx' not found."
      }
    ]
  },
  "variant": {
    "language": null,
    "mediaType": {
      "type": "application",
      "subtype": "json",
      "parameters": {},
      "wildcardType": false,
      "wildcardSubtype": false
    },
    "encoding": null,
    "languageString": null
  },
  "annotations": [],
  "mediaType": {
    "type": "application",
    "subtype": "json",
    "parameters": {},
    "wildcardType": false,
    "wildcardSubtype": false
  },
  "language": null,
  "encoding": null
}

这构建了以下类（我在Entity类中添加了JSONProperties因为属性名称包含空格，所以我也尝试了没有它们的空间，并且会遇到相同的错误）：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace xxx.Data.Models
{
    public class Rootobject
    {
        public Entity entity { get; set; }

        public Variant variant { get; set; }
        public object[] annotations { get; set; }
        public Mediatype1 mediaType { get; set; }
        public object language { get; set; }
        public object encoding { get; set; }
    }

    public class Entity
    {
        [JsonProperty("Successful Requests")]
        public SuccessfulRequest[] SuccessfulRequests { get; set; }
        [JsonProperty("Failed Requests")]
        public FailedRequest[] FailedRequests { get; set; }
    }

    public class SuccessfulRequest
    {
        public int Status { get; set; }
        public int ResourceID { get; set; }
        public string Message { get; set; }
    }

    public class FailedRequest
    {
        public int Status { get; set; }
        public int ResourceID { get; set; }
        public string Message { get; set; }
    }

    public class Variant
    {
        public object language { get; set; }
        public Mediatype mediaType { get; set; }
        public object encoding { get; set; }
        public object languageString { get; set; }
    }

    public class Mediatype
    {
        public string type { get; set; }
        public string subtype { get; set; }
        public Parameters parameters { get; set; }
        public bool wildcardType { get; set; }
        public bool wildcardSubtype { get; set; }
    }

    public class Parameters
    {
    }

    public class Mediatype1
    {
        public string type { get; set; }
        public string subtype { get; set; }
        public Parameters1 parameters { get; set; }
        public bool wildcardType { get; set; }
        public bool wildcardSubtype { get; set; }
    }

    public class Parameters1
    {
    }
}

我在代码中进行API调用：

var response = await _repositorySvc.PutBulkEquipment(requestBody, Guid.NewGuid());
var result = response.Content.ReadAsStringAsync().Result;
_logger.LogWarning("------------------Result:");
_logger.LogWarning(result);

它在控制台中返回以下JSON字符串：

{
  "entity": "{\"Successful Requests\":[{\"Status\":201,\"Resource ID\":34715872,\"Message\":\"Created resource 1 at URI: /rest/equipment/ids/34715872\"},{\"Status\":201,\"Resource ID\":34715892,\"Message\":\"Created resource 2 at URI: /rest/equipment/ids/34715892\"}],\"Failed Requests\":[]}",
  "variant": {
    "language": null,
    "mediaType": {
      "type": "application",
      "subtype": "json",
      "parameters": {},
      "wildcardType": false,
      "wildcardSubtype": false
    },
    "encoding": null,
    "languageString": null
  },
  "annotations": [],
  "mediaType": {
    "type": "application",
    "subtype": "json",
    "parameters": {},
    "wildcardType": false,
    "wildcardSubtype": false
  },
  "language": null,
  "encoding": null
}

然后，当我尝试进行挑选时字符串到实体类：

var deserializedResponse = JsonConvert.DeserializeObject<Rootobject>(result);

我会收到以下错误：

错误转换值 “ {“成功请求”：[{“ status”：201，“资源ID”：34715872，“消息”：“创建资源1在uri：/rest/repucation/decubl/ids/34715872”}，{ ，“资源ID”：34715892，“消息”：“在URI上创建了资源2： /REST/设备/IDS/34715892“}]，“失败的请求”：[]}“
键入'xxx.data.models.entity'。
路径“实体”，第1行，位置290。

1. 。一天半？一切对我来说都是正确的，我很难过 - 我做了很多挑战，通常是EZ模式，所以我不确定我缺少什么。

2. 是否有任何方法可以更好地了解.NET Core中的避免化问题？

谢谢你！

Answer 1

如果这是JSON响应：

"entity": "{\"Successful Requests\":[...],\"Failed Requests\":[]}",

那么实体是类型字符串。请注意开始和结束时的引号。另请注意，所有内部引号均使用后斜切逃脱。

错误消息完全说明，它不能将该字符串转换为对象。它确实期望的东西更像

"entity": {"Successful Requests":[...], "Failed Requests":[]},