2
這裏是我的JSON對象JSON對象到模型MVC
{
"id":5,
"url":"http://localhost:8001/api/courses/5",
"name":"Professional Experience II",
"duration":"5.0",
"description":"The course will talk in depth about every thing",
"tutor": {
"id":2,
"email":"[email protected]",
"userName":"TA",
"firstName":"T",
"lastName":"A",
"gender":0
},
"subject":
{
"id":2,
"name":"Science"
}
}
，我的模型是在這裏
public class CourseModel
{
public int Id { get; set; }
public string Url { get; set; }
public string Name { get; set; }
public double Duration { get; set; }
public string Description { get; set; }
public TutorModel Tutor { get; set; }
public SubjectModel Subject { get; set; }
}
和我這是怎麼得到這個對象。我能夠得到的JSONObject，但不能將它反序列化到其相應的模型
string url = "http://localhost:8001/api/courses/5";
HttpResponseMessage responseMessage = await client.GetAsync(url);
if (responseMessage.IsSuccessStatusCode)
{
var responseData = responseMessage.Content.ReadAsStringAsync().Result;
var data = JsonConvert.DeserializeObject<List<CourseModel>>(responseData);
return View(data);
}
return View("Error:);
錯誤我得到是
無法反序列化當前的JSON對象（例如{「名」：「值「}） 轉換爲 'System.Collections.Generic.List`1 [Learning.Web.Models.CourseModel]' ，因爲該類型需要JSON數組（例如[1,2,3]）才能正確反序列化 。要解決這個錯誤，可以將JSON更改爲JSON數組（例如[1,2,3]），或者更改反序列化類型，使其成爲正常的 .NET類型（例如，不是像integer這樣的基本類型，也不是集合 類型類似於數組或列表），可以從JSON 對象反序列化。 JsonObjectAttribute也可以添加到類型中，以強制它從一個JSON對象反序列化。路徑「身份證」，1號線，6位
我使用的WebAPI，我不知道我在做什麼錯在這裏。任何幫助將不勝感激
更新時間：
基礎的在Shyju和哈比卜回答它的工作，如果我把它反序列化到一個單一的實例，但如果我的網址更改爲
string url = "http://localhost:8001/api/courses";
和反序列化到名單，我得到同樣的錯誤，這裏是JSON對象
{
"totalCount":32,
"totalPages":4,
"prevPageLink":"",
"nextPageLink":"http://localhost:8001/api/courses?page=1&pageSize=10",
"results":[
{
"id":1,
"url":"http://localhost:8001/api/courses/1",
"name":"History Teaching Methods 1",
"duration":3.0,
"description":"The course will talk in depth about: History Teaching Methods 1",
"tutor":{
"id":1,
"email":"[email protected]",
"userName":"A,
"firstName":"A",
"lastName":"J",
"gender":0
},
"subject":{
"id":1,
"name":"History"
}
},
{
"id":2,
"url":"http://localhost:8001/api/courses/2",
"name":"History Teaching Methods 2",
"duration":5.0,
"description":"The course will talk in depth about: History Teaching Methods 2",
"tutor":{
"id":1,
"email":"[email protected]",
"userName":"AJo",
"firstName":"A",
"lastName":"Jo",
"gender":0
},
"subject":{
"id":1,
"name":"History"
}
},
{
"id":3,
"url":"http://localhost:8001/api/courses/3",
"name":"History Teaching Methods 3",
"duration":5.0,
"description":"The course will talk in depth about: History Teaching Methods 3",
"tutor":{
"id":1,
"email":"[email protected]",
"userName":"A",
"firstName":"A",
"lastName":"J",
"gender":0
},
"subject":{
"id":1,
"name":"History"
}
},
{
"id":4,
"url":"http://localhost:8001/api/courses/4",
"name":"Professional Experience 1 (Mathematics/Science)",
"duration":5.0,
"description":"The course will talk in depth about: Professional Experience 1 (Mathematics/Science)",
"tutor":{
"id":2,
"email":"[email protected]",
"userName":"T",
"firstName":"T",
"lastName":"A",
"gender":0
},
"subject":{
"id":2,
"name":"Science"
}
},
{
"id":5,
"url":"http://localhost:8001/api/courses/5",
"name":"Professional Experience 2 (Mathematics/Science)",
"duration":5.0,
"description":"The course will talk in depth about: Professional Experience 2 (Mathematics/Science)",
"tutor":{
"id":2,
"email":"[email protected]",
"userName":"T",
"firstName":"T",
"lastName":"A",
"gender":0
},
"subject":{
"id":2,
"name":"Science"
}
},
{
"id":6,
"url":"http://localhost:8001/api/courses/6",
"name":"Professional Experience 3 (Mathematics/Science)",
"duration":5.0,
"description":"The course will talk in depth about: Professional Experience 3 (Mathematics/Science)",
"tutor":{
"id":2,
"email":"[email protected]",
"userName":"T",
"firstName":"T",
"lastName":"A",
"gender":0
},
"subject":{
"id":2,
"name":"Science"
}
},
{
"id":7,
"url":"http://localhost:8001/api/courses/7",
"name":"Geography Teaching Methods 1",
"duration":5.0,
"description":"The course will talk in depth about: Geography Teaching Methods 1",
"tutor":{
"id":3,
"email":"[email protected]",
"userName":"Ti",
"firstName":"T",
"lastName":"W",
"gender":0
},
"subject":{
"id":3,
"name":"Geography"
}
},
{
"id":8,
"url":"http://localhost:8001/api/courses/8",
"name":"Geography Teaching Methods 2",
"duration":5.0,
"description":"The course will talk in depth about: Geography Teaching Methods 2",
"tutor":{
"id":3,
"email":"[email protected]",
"userName":"f",
"firstName":"f",
"lastName":"f",
"gender":0
},
"subject":{
"id":3,
"name":"Geography"
}
},
{
"id":9,
"url":"http://localhost:8001/api/courses/9",
"name":"Geography Teaching Methods 3",
"duration":5.0,
"description":"The course will talk in depth about: Geography Teaching Methods 3",
"tutor":{
"id":3,
"email":"[email protected]",
"userName":"s",
"firstName":"s",
"lastName":"s",
"gender":0
},
"subject":{
"id":3,
"name":"Geography"
}
},
{
"id":10,
"url":"http://localhost:8001/api/courses/10",
"name":"English Education 1",
"duration":5.0,
"description":"The course will talk in depth about: English Education 1",
"tutor":{
"id":4,
"email":"[email protected]",
"userName":"g",
"firstName":"g",
"lastName":"g",
"gender":0
},
"subject":{
"id":4,
"name":"English"
}
}
]
}
它可以爲單個實例工作..但如果我更改url爲字符串url =「http：// localhost：8001/api/courses」;並反序列化它列表我得到同樣的錯誤..任何想法？ – Angloos
，因爲你的json數據是針對單個實例的，而不是它們的數組。如果我不使用參數即 – Shyju
5我得到不同的Json對象，我是否還需要顯示另一個Json對象？ – Angloos