我想将JSON对象反序列化到C#,但我得到了这个异常:
无法将当前JSON数组(例如[1,2,3])反序列化为类型"FYP___Task_1.RootObject",因为该类型需要JSON对象(例如{"name":"value"})才能正确反序列化。
若要修复此错误,请将JSON更改为JSON对象(例如{"name":"value"}),或将反序列化的类型更改为数组或实现集合接口(例如ICollection、IList)的类型,例如可以从JSON数组反序列化的List。JsonArrayAttribute也可以添加到类型中,以强制它从JSON数组反序列化。
路径",第1行,位置1。
我试图通过在StackOverflow上找到的不同解决方案来解决这个错误,但没有人成功。
我使用的JSON如下:
[
{
"rating_count": 158271,
"genres": [
"Action",
"Crime",
"Thriller"
],
"rated": "PG-13",
"language": [
"English",
"French",
"Mandarin"
],
"rating": 6.7,
"country": [
"France",
"USA"
],
"release_date": 20021011,
"title": "Transportern "The Transporter"",
"year": 2002,
"filming_locations": "Avenue de Saissy, Cannes, Alpes-Maritimes, France",
"imdb_id": "tt0293662",
"directors": [
"Corey Yuen"
],
"writers": [
"Luc Besson",
"Robert Mark Kamen"
],
"actors": [
"Jason Statham",
"Qi Shu",
"Matt Schulze",
"François Berléand",
"Ric Young",
"Doug Rand",
"Didier Saint Melin",
"Tonio Descanvelle",
"Laurent Desponds",
"Matthieu Albertini",
"Vincent Nemeth",
"Jean-Yves Bilien",
"Jean-Marie Paris",
"Adrian Dearnell",
"Alfred Lot"
],
"also_known_as": [
"Transporter"
],
"poster": {
"imdb": "http://ia.media-imdb.com/images/M/MV5BMTk2NDc2MDAxN15BMl5BanBnXkFtZTYwNDc1NDY2._V1_SY317_CR3,0,214,317_.jpg",
"cover": "http://imdb-poster.b0.upaiyun.com/000/293/662.jpg!cover?_upt=cd37cf0e1385015165"
},
"runtime": [
"92 min"
],
"type": "M",
"imdb_url": "http://www.imdb.com/title/tt0293662/"
}
]
我正在使用的类:
public class Poster
{
public string imdb { get; set; }
public string cover { get; set; }
}
public class RootObject
{
public int rating_count { get; set; }
public List<string> genres { get; set; }
public string rated { get; set; }
public List<string> language { get; set; }
public double rating { get; set; }
public List<string> country { get; set; }
public int release_date { get; set; }
public string title { get; set; }
public int year { get; set; }
public string filming_locations { get; set; }
public string imdb_id { get; set; }
public List<string> directors { get; set; }
public List<string> writers { get; set; }
public List<string> actors { get; set; }
public List<string> also_known_as { get; set; }
public Poster poster { get; set; }
public List<string> runtime { get; set; }
public string type { get; set; }
public string imdb_url { get; set; }
}
JSON对象的结构为[ {..} ]
,这意味着它是一个对象列表。在您的情况下,您的列表只有一个对象,但它仍然是一个列表。您要做的是将列表变成一个对象,这样您就会得到一个异常。
解决方案是将JSON更改为{..}
(即删除方括号),或者将JSON反序列化为RootObject
的数组,然后只读取第一个,例如:
RootObject[] myArray = json.Deserialize<RootObject[]>("json goes here");
RootObject firstObject = myArray[0];
我们也可以尝试下面的选项。
var root = response1.Content.ReadAsAsync<RootObject>().Result;
GridView1.DataSource = root.items;