问
如何使用JsonProperty获取嵌套属性
鲁小姐就不用围脖 发布于 2023-02-13 19:02我正在尝试使用Json.net反序列化此JSON代码.它是关于特定电影的信息.一切都按预期工作,除了cast属性,它嵌套在credits属性中.我为我的班级中的演员制作了一个班级Actor和一个这个演员班的名单Movie.
这是JSON:
{
"id":550,
"original_title":"Fight Club",
"credits":
{
"cast":
[
{
"id":819,
"name":"Edward Norton",
"character":"The Narrator",
"order":0,
"cast_id":4,
"profile_path":"/eIkFHNlfretLS1spAcIoihKUS62.jpg"
},
{
"id":287,
"name":"Brad Pitt",
"character":"Tyler Durden",
"order":1,
"cast_id":5,
"profile_path":"/kc3M04QQAuZ9woUvH3Ju5T7ZqG5.jpg"
},
{
"id":1283,
"name":"Helena Bonham Carter",
"character":"Marla Singer",
"order":2,
"cast_id":6,
"profile_path":"/58oJPFG1wefMC0Vj7sFzHPrm67J.jpg"
},
{
"id":7470,
"name":"Meat Loaf",
"character":"Robert 'Bob' Paulson",
"order":3,
"cast_id":7,
"profile_path":"/pwNyXgegO1nlZ8uWT847JM8EjGj.jpg"
},
{
"id":7471,
"name":"Zach Grenier",
"character":"Richard Chesler",
"order":4,
"cast_id":8,
"profile_path":"/jghYiKdNkVehKpiVyE97AWrU9KQ.jpg"
},
{
"id":7472,
"name":"Richmond Arquette",
"character":"Intern",
"order":5,
"cast_id":9,
"profile_path":null
},
{
"id":7219,
"name":"David Andrews",
"character":"Thomas",
"order":6,
"cast_id":10,
"profile_path":"/pxmxn29UHW9r6uvLrd7bEwLswlQ.jpg"
},
{
"id":7473,
"name":"Rachel Singer",
"character":"Chloe",
"order":11,
"cast_id":11,
"profile_path":null
},
{
"id":7497,
"name":"Holt McCallany",
"character":"The Mechanic",
"order":20,
"cast_id":22,
"profile_path":"/hQBfcw9KVszdenlTZTR8AIrSpex.jpg"
},
{
"id":7498,
"name":"Eion Bailey",
"character":"Ricky",
"order":22,
"cast_id":23,
"profile_path":"/4MnRgrwuiJvHsfoiJrIUL4TkfoC.jpg"
},
{
"id":7499,
"name":"Jared Leto",
"character":"Angel Face",
"order":23,
"cast_id":24,
"profile_path":"/lzQSuu5o0JC9mCncYjVnncSH5lO.jpg"
},
{
"id":7500,
"name":"Peter Iacangelo",
"character":"Lou",
"order":24,
"cast_id":25,
"profile_path":null
},
{
"id":56112,
"name":"David Lee Smith",
"character":"Walter",
"order":19,
"cast_id":30,
"profile_path":"/xYkMA9AWtUN93KV5hWzlDkcnebB.jpg"
},
{
"id":1129738,
"name":"George Maguire",
"character":"Group Leader",
"order":7,
"cast_id":31,
"profile_path":null
},
{
"id":197790,
"name":"Eugenie Bondurant",
"character":"Weeping Woman",
"order":8,
"cast_id":32,
"profile_path":null
},
{
"id":68277,
"name":"Christina Cabot",
"character":"Group Leader",
"order":9,
"cast_id":33,
"profile_path":"/7UBTv5lW6apPdVLnOqTTBMTJWwY.jpg"
},
{
"id":202080,
"name":"Sydney 'Big Dawg' Colston",
"character":"Speaker",
"order":10,
"cast_id":34,
"profile_path":null
},
{
"id":1172435,
"name":"Christie Cronenweth",
"character":"Airline Attendant",
"order":12,
"cast_id":35,
"profile_path":null
},
{
"id":956719,
"name":"Tim De Zarn",
"character":"Inspector Bird",
"order":13,
"cast_id":36,
"profile_path":null
},
{
"id":59285,
"name":"Ezra Buzzington",
"character":"Inspector Dent",
"order":14,
"cast_id":37,
"profile_path":"/dl0SIqpOqS05UpJHKuDQqZTwUvP.jpg"
},
{
"id":1269622,
"name":"Dierdre Downing-Jackson",
"character":"Woman on Plane",
"order":15,
"cast_id":38,
"profile_path":null
},
{
"id":543293,
"name":"Bob Stephenson",
"character":"Airport Security Officer (as Robert J. Stephenson)",
"order":16,
"cast_id":39,
"profile_path":"/iH86ZmoSGOCnWZ8aycavGdlu3ht.jpg"
},
{
"id":62846,
"name":"Charlie Dell",
"character":"Doorman",
"order":17,
"cast_id":40,
"profile_path":"/z0JgZxazJAVlHxLYXWM8eUZlOk8.jpg"
},
{
"id":530040,
"name":"Rob Lanza",
"character":"Man in Suit",
"order":18,
"cast_id":41,
"profile_path":null
},
{
"id":137425,
"name":"Joel Bissonnette",
"character":"Food Court Maitre D'",
"order":21,
"cast_id":42,
"profile_path":null
},
{
"id":175120,
"name":"Evan Mirand",
"character":"Steph",
"order":25,
"cast_id":43,
"profile_path":null
},
{
"id":169636,
"name":"Robby Robinson",
"character":"Next Month's Opponent",
"order":26,
"cast_id":44,
"profile_path":null
},
{
"id":168924,
"name":"Lou Beatty Jr.",
"character":"Cop at Marla's Building",
"order":27,
"cast_id":45,
"profile_path":null
},
{
"id":1219497,
"name":"Thom Gossom Jr.",
"character":"Detective Stern",
"order":28,
"cast_id":46,
"profile_path":null
},
{
"id":157938,
"name":"Valerie Bickford",
"character":"Susan, Cosmetics Dealer",
"order":29,
"cast_id":47,
"profile_path":null
},
{
"id":42824,
"name":"Carl Ciarfalio",
"character":"Lou's Body Guard (as Carl N. Ciarfalio)",
"order":30,
"cast_id":48,
"profile_path":null
},
{
"id":40277,
"name":"Stuart Blumberg",
"character":"Car Salesman",
"order":31,
"cast_id":49,
"profile_path":null
},
{
"id":1270716,
"name":"Todd Peirce",
"character":"Man #1 at Auto Shop",
"order":32,
"cast_id":50,
"profile_path":null
},
{
"id":122805,
"name":"Mark Fite",
"character":"Man #2 at Auto Shop",
"order":33,
"cast_id":51,
"profile_path":"/9On8A4VRctM8uuaJYE0KaLhDjcw.jpg"
},
{
"id":35521,
"name":"Matt Winston",
"character":"Seminary Student",
"order":34,
"cast_id":52,
"profile_path":"/6hGcDyUaewBHdwfmKYp6EP7otRh.jpg"
},
{
"id":1270720,
"name":"Joon Kim",
"character":"Raymond K. Hessel (as Joon B. Kim)",
"order":35,
"cast_id":53,
"profile_path":null
},
{
"id":1010551,
"name":"Bennie Moore",
"character":"Bus Driver with Broken Nose (as Bennie E. Moore Jr.)",
"order":36,
"cast_id":54,
"profile_path":null
},
{
"id":1224996,
"name":"Lauren Sánchez",
"character":"Channel 4 Reporter (as W. Lauren Sanchez)",
"order":37,
"cast_id":55,
"profile_path":null
},
{
"id":1174793,
"name":"Pat McNamara",
"character":"Police Commissioner Jacobs",
"order":38,
"cast_id":56,
"profile_path":null
},
{
"id":1270723,
"name":"Tyrone R. Livingston",
"character":"Banquet Speaker",
"order":39,
"cast_id":57,
"profile_path":null
},
{
"id":1113343,
"name":"Owen Masterson",
"character":"Airport Valet",
"order":40,
"cast_id":58,
"profile_path":null
},
{
"id":109100,
"name":"David Jean Thomas",
"character":"Policeman (as David Jean-Thomas)",
"order":41,
"cast_id":59,
"profile_path":null
},
{
"id":160412,
"name":"Paul Carafotes",
"character":"Salvator, Winking Bartender",
"order":42,
"cast_id":60,
"profile_path":"/yFRANT8p0D4j4PJclkd1psi5a0J.jpg"
},
{
"id":145531,
"name":"Christopher John Fields",
"character":"Proprietor of Dry Cleaners",
"order":43,
"cast_id":61,
"profile_path":"/jTWw4B74VhrPo8AN6Q9jq31eYDD.jpg"
},
{
"id":182139,
"name":"Anderson Bourell",
"character":"Bruised Bar Patron #1",
"order":44,
"cast_id":62,
"profile_path":null
},
{
"id":63537,
"name":"Scotch Ellis Loring",
"character":"Bruised Bar Patron #2",
"order":45,
"cast_id":63,
"profile_path":"/7Tk72GCd4TLfJj16EvVroEtMv86.jpg"
},
{
"id":9291,
"name":"Michael Shamus Wiles",
"character":"Bartender in Halo",
"order":46,
"cast_id":64,
"profile_path":"/upfSW6BGze446iqsZRehzcToNm8.jpg"
},
{
"id":170315,"name":"Andi Carnick","character":"Hotel Desk Clerk","order":47,"cast_id":65,"profile_path":null},{"id":1270724,"name":"Edward Kowalczyk","character":"Waiter at Clifton's","order":48,"cast_id":66,"profile_path":null},{"id":7140,"name":"Leonard Termo","character":"Desk Sergeant","order":49,"cast_id":67,"profile_path":null},{"id":41352,"name":"Van Quattro","character":"Detective Andrew","order":50,"cast_id":68,"profile_path":null},{"id":140476,"name":"Markus Redmond","character":"Detective Kevin","order":51,"cast_id":69,"profile_path":null},{"id":177175,"name":"Michael Girardin","character":"Detective Walker","order":52,"cast_id":70,"profile_path":null},{"id":74507,"name":"Michael Arturo","character":"BMW Salesman (uncredited)","order":53,"cast_id":71,"profile_path":"/yMm3LVd8tm63B3e3DF415U5qRaI.jpg"},{"id":1194120,"name":"Matt Cinquanta","character":"Fighter (uncredited)","order":54,"cast_id":72,"profile_path":null},{"id":1270725,"name":"Tommy Dallace","character":"Champion Fighter (uncredited)","order":55,"cast_id":73,"profile_path":null},{"id":13925,"name":"Paul Dillon","character":"Irvin (uncredited)","order":56,"cast_id":74,"profile_path":"/6jouXtMcbJ7nTuDNwvaePnqCHTX.jpg"},{"id":552271,"name":"Eddie Hargitay","character":"Chanting Fighter (uncredited)","order":57,"cast_id":75,"profile_path":null},{"id":94561,"name":"Phil Hawn","character":"Banquet Guest (uncredited)","order":58,"cast_id":76,"profile_path":null},{"id":1270726,"name":"Jawara","character":"Fight Patron Saying 'What's going on?' (uncredited)","order":59,"cast_id":77,"profile_path":null},{"id":207609,"name":"Baron Jay","character":"Waiter (uncredited)","order":60,"cast_id":78,"profile_path":null},{"id":154636,"name":"Jim Jenkins","character":"Restaurant Maitre'd (uncredited)","order":61,"cast_id":79,"profile_path":null},{"id":1270727,"name":"Kevin Scott Mack","character":"Passenger Clutching Armrest (uncredited)","order":62,"cast_id":80,"profile_path":null},{"id":1270728,"name":"Trey Ore","character":"Fight Club Patron / Guy #2 in video store (uncredited)","order":63,"cast_id":81,"profile_path":null},{"id":1270729,"name":"Louis Ortiz","character":"Fight Spectator (uncredited)","order":64,"cast_id":82,"profile_path":null},{"id":1270730,"name":"Hugh Peddy","character":"Fight Club Man (uncredited)","order":65,"cast_id":83,"profile_path":null},{"id":1270731,"name":"J.T. Pontino","character":"Fight Club Man (uncredited)","order":66,"cast_id":84,"profile_path":null},{"id":1270732,"name":"Chad Randau","character":"Waiter (uncredited)","order":67,"cast_id":85,"profile_path":null},{"id":133153,"name":"Marcio Rosario","character":"Fighter (uncredited)","order":68,"cast_id":86,"profile_path":null},{"id":962235,"name":"Gregory Silva","character":"Riley Wilde, Fighter (uncredited)","order":69,"cast_id":87,"profile_path":null},{"id":16060,"name":"Brian Tochi","character":"Fight Bully (uncredited)","order":70,"cast_id":88,"profile_path":"/2nAC2ssCFu74zkhg1722WQhArGO.jpg"},{"id":1270733,"name":"Alekxia Valdez","character":"Bar Worker saying \"His name is Robert Paulsen\" (uncredited)","order":71,"cast_id":89,"profile_path":null
}
],
}
}
电影课:
public class Movie
{
[JsonProperty(PropertyName = "id")]
public int ID { get; set; }
[JsonProperty(PropertyName = "original_title")]
public string Title { get; set; }
[JsonProperty(PropertyName = "cast"]
public List Lists { get; set; }
}
Actor类:
public class Actor
{
#region Properties
[JsonProperty(PropertyName = "id")]
public int ActorId { get; set; }
[JsonProperty(PropertyName = "name")]
public string Name { get; set; }
[JsonProperty(PropertyName = "character")]
public string CharacterName { get; set; }
[JsonProperty(PropertyName = "order")]
public int Order { get; set; }
[JsonProperty(PropertyName = "cast_id")]
public int CastId { get; set; }
[JsonProperty(PropertyName = "profile_path")]
public string ProfilePath { get; set; }
#endregion
}
我想访问该cast属性而不需要一个名为eg的类credits来存储actor的列表.我想直接存储类中的actor列表Movie.
反序列化的调用如下所示:
Movie test = JsonConvert.DeserializeObject(json);
我试图JsonProperty在Movie课堂上编辑,cast.credits但没有任何作用.
我看到了类似问题的答案,但我不想手动这样做; 我想要它自动.Json获取底层数组而不检索其成员
1 个回答
-
由于
castJSON中的属性不在顶级对象(电影)中,并且您不想引入中间Credits类,因此您需要使用自定义JsonConverter来弥补差距.以下是转换器的外观:public class MovieConverter : JsonConverter { public override bool CanConvert(Type objectType) { return (objectType == typeof(Movie)); } public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { JObject jo = JObject.Load(reader); Movie movie = jo.ToObject<Movie>(); movie.Lists = jo.SelectToken("credits.cast").ToObject<List<Actor>>(); return movie; } public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { throw new NotImplementedException(); } }要使用转换器,只需将它的实例传递给
JsonConvert.DeserializeObject()方法,如下所示:Movie movie = JsonConvert.DeserializeObject<Movie>(json, new MovieConverter());
这是一个演示:
class Program { static void Main(string[] args) { string json = @" { ""id"": 550, ""original_title"": ""Fight Club"", ""credits"": { ""cast"": [ { ""id"": 819, ""name"": ""Edward Norton"", ""character"": ""The Narrator"", ""order"": 0, ""cast_id"": 4, ""profile_path"": ""/eIkFHNlfretLS1spAcIoihKUS62.jpg"" }, { ""id"": 287, ""name"": ""Brad Pitt"", ""character"": ""Tyler Durden"", ""order"": 1, ""cast_id"": 5, ""profile_path"": ""/kc3M04QQAuZ9woUvH3Ju5T7ZqG5.jpg"" }, { ""id"": 1283, ""name"": ""Helena Bonham Carter"", ""character"": ""Marla Singer"", ""order"": 2, ""cast_id"": 6, ""profile_path"": ""/58oJPFG1wefMC0Vj7sFzHPrm67J.jpg"" }, { ""id"": 7470, ""name"": ""Meat Loaf"", ""character"": ""Robert 'Bob' Paulson"", ""order"": 3, ""cast_id"": 7, ""profile_path"": ""/pwNyXgegO1nlZ8uWT847JM8EjGj.jpg"" }, { ""id"": 7471, ""name"": ""Zach Grenier"", ""character"": ""Richard Chesler"", ""order"": 4, ""cast_id"": 8, ""profile_path"": ""/jghYiKdNkVehKpiVyE97AWrU9KQ.jpg"" } ] } }"; Movie movie = JsonConvert.DeserializeObject<Movie>(json, new MovieConverter()); Console.WriteLine(movie.Title + " cast:"); foreach (Actor actor in movie.Lists) { string sep = new string('\t', actor.Name.Length > 14 ? 1 : 2); Console.WriteLine(actor.Name + sep + actor.CharacterName); } } }输出:
Fight Club cast: Edward Norton The Narrator Brad Pitt Tyler Durden Helena Bonham Carter Marla Singer Meat Loaf Robert 'Bob' Paulson Zach Grenier Richard Chesler
2023-02-13 19:05 回答
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