我正在尝试通过 Zendesk v2 API 从控制台应用程序获取 Zendesk 票证,然后插入到 sql 数据库,但出现错误。
Newtonsoft.Json.JsonSerializationException:无法将当前 JSON 对象(例如 {"name":"value"})反序列化为类型“System.Collections.Generic.List`1[ZenTrack.Class1+Ticket]”,因为类型需要一个 JSON 数组(例如 [1,2,3])才能正确反序列化。
对于理解这一点的人来说,这个错误非常清楚......我不是那些人中的一员! 我哪里做错了?
所以我的代码是这样的:
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using static ZenGet.Class1;
namespace ZenGet
{
class Program
{
static void Main(string[] args)
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("https://myportal.zendesk.com/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Add("Authorization", "Basic xxxxxxxxxxxxxxxxxxxxxx");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
string path = "api/v2/tickets.json?page=1";
FileStream fs = new FileStream("c:\\Test.txt", FileMode.Create);
StreamWriter sw = new StreamWriter(fs);
try
{
HttpResponseMessage response = client.GetAsync(path).Result;
//Http Status code 200
if (response.IsSuccessStatusCode)
{
//Read response content result into string variable
string JSON = response.Content.ReadAsStringAsync().Result;
//Deserialize the string(JSON) object
var RootObjects = JsonConvert.DeserializeObject<List<Ticket>>(JSON);
foreach (var rootObject in RootObjects)
{
Console.WriteLine(rootObject.id + "-" + rootObject.subject + "-" + rootObject.description + "-" + rootObject.status);
// The SQL insert goes here.
}
}
}
catch (Exception exception)
{
Console.SetOut(sw);
Console.WriteLine($"Exception: {exception}");
}
sw.Close();
}
}
}
类看起来像这样:
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ZendeskApi_v2.Models.Tickets;
namespace ZenGet
{
class Class1
{
public class From
{
}
public class To
{
}
public class Source
{
[JsonProperty("from")]
public From from { get; set; }
[JsonProperty("to")]
public To to { get; set; }
[JsonProperty("rel")]
public object rel { get; set; }
}
public class Via
{
[JsonProperty("channel")]
public string channel { get; set; }
[JsonProperty("source")]
public Source source { get; set; }
}
public class Ticket
{
[JsonProperty("url")]
public string url { get; set; }
[JsonProperty("id")]
public int id { get; set; }
[JsonProperty("external_id")]
public object external_id { get; set; }
[JsonProperty("via")]
public Via via { get; set; }
[JsonProperty("created_at")]
public DateTime created_at { get; set; }
[JsonProperty("updated_at")]
public DateTime updated_at { get; set; }
[JsonProperty("type")]
public string type { get; set; }
[JsonProperty("subject")]
public string subject { get; set; }
[JsonProperty("raw_subject")]
public string raw_subject { get; set; }
[JsonProperty("description")]
public string description { get; set; }
[JsonProperty("priority")]
public string priority { get; set; }
[JsonProperty("status")]
public string status { get; set; }
[JsonProperty("recipient")]
public object recipient { get; set; }
[JsonProperty("requester_id")]
public object requester_id { get; set; }
[JsonProperty("submitter_id")]
public object submitter_id { get; set; }
[JsonProperty("assignee_id")]
public object assignee_id { get; set; }
[JsonProperty("organization_id")]
public object organization_id { get; set; }
[JsonProperty("group_id")]
public object group_id { get; set; }
[JsonProperty("collaborator_ids")]
public List<object> collaborator_ids { get; set; }
[JsonProperty("follower_ids")]
public List<object> follower_ids { get; set; }
[JsonProperty("email_cc_ids")]
public List<object> email_cc_ids { get; set; }
[JsonProperty("forum_topic_id")]
public object forum_topic_id { get; set; }
[JsonProperty("problem_id")]
public object problem_id { get; set; }
[JsonProperty("has_incidents")]
public bool has_incidents { get; set; }
[JsonProperty("is_public")]
public bool is_public { get; set; }
[JsonProperty("due_at")]
public object due_at { get; set; }
[JsonProperty("tags")]
public List<string> tags { get; set; }
[JsonProperty("custom_fields")]
public List<object> custom_fields { get; set; }
[JsonProperty("satisfaction_rating")]
public object satisfaction_rating { get; set; }
[JsonProperty("sharing_agreement_ids")]
public List<object> sharing_agreement_ids { get; set; }
[JsonProperty("fields")]
public List<object> fields { get; set; }
[JsonProperty("followup_ids")]
public List<object> followup_ids { get; set; }
[JsonProperty("brand_id")]
public object brand_id { get; set; }
[JsonProperty("allow_channelback")]
public bool allow_channelback { get; set; }
[JsonProperty("allow_attachments")]
public bool allow_attachments { get; set; }
}
public class Root
{
[JsonProperty("tickets")]
public Ticket[] Tickets { get; set; }
}
}
}
json 响应:
tickets: [
{
"url": "https://myportal.zendesk.com/api/v2/tickets/2.json",
"id": 2,
"external_id": null,
"via": {
"channel": "sample_ticket",
"source": {
"from": {},
"to": {},
"rel": null
}
},
"created_at": "2020-12-09T07:20:17Z",
"updated_at": "2020-12-13T08:01:20Z",
"type": "incident",
"subject": "Jag behöver hjälp",
"raw_subject": "Jag behöver hjälp",
"description": "Hej,\nNågot dramatiskt har inträffat och jag behöver verkligen din hjälp.\nTack på förhand,\nKund\n",
"priority": "normal",
"status": "closed",
"recipient": null,
"requester_id": 376279908200,
"submitter_id": 376279896900,
"assignee_id": 376279896900,
"organization_id": null,
"group_id": 360005730200,
"collaborator_ids": [],
"follower_ids": [],
"email_cc_ids": [],
"forum_topic_id": null,
"problem_id": null,
"has_incidents": false,
"is_public": true,
"due_at": null,
"tags": [
"support-exempel",
"zendesk"
],
"custom_fields": [],
"satisfaction_rating": null,
"sharing_agreement_ids": [],
"fields": [],
"followup_ids": [],
"brand_id": 360002066200,
"allow_channelback": false,
"allow_attachments": true
}
]
next_page:
next_page:
previous_page:
previous_page:
count: 3
count: 3
我尝试更改行:
var RootObjects = JsonConvert.DeserializeObject(JSON);
到
动态而不是 var
并
动态 RootObjects = JsonConvert.DeserializeObject(JSON);
我的班级从
public class Source
{
public From from { get; set; }
public To to { get; set; }
public object rel { get; set; }
到
public class Source
{
[JsonProperty("from")] <-- added this
public From from { get; set; }
[JsonProperty("to")] <-- added this
public To to { get; set; }
[JsonProperty("rel")] <-- added this
public object rel { get; set; }
答案 0 :(得分:1)
您尝试将 json 对象反序列化为票证列表。但是您必须将其反序列化为包含票证列表的根对象:
变化:
var RootObjects = JsonConvert.DeserializeObject<List<Ticket>>(JSON);
致:
var RootObjects = JsonConvert.DeserializeObject<Root>(JSON);