C＃中的JSON解析問題＃

我正在使用下面的代碼來解析JSON。我得到例外。C＃中的JSON解析問題＃

using System.Collections.Generic; 
using Newtonsoft.Json; 
using RestSharp; 
using WebAutomation.BDD.Data; 

namespace WebAutomation.Utils 
{ 
    public class RestApi 
    { 
     private static IRestResponse HttpGetResponse(string endPoint) 
     { 
      var client = new RestClient(endPoint); 
      var request = new RestRequest(Method.GET); 
      return client.Execute(request); 
     } 

     public static FeaturedMenuItems GetFeaturedMenuItems() 
     { 
      var a = HttpGetResponse("http://<DOMAIN>/api/web/menu/quick"); 
      return JsonConvert.DeserializeObject<FeaturedMenuItems>(a.Content); 
     } 
    } 
}

我使用下面的類來分析它：

using System.Collections.Generic; 

namespace WebAutomation.BDD.Data 
{ 
    public class FeaturedMenu 
    { 
     public string MenuItemName { get; set; } 
     public string MenuItemName_en { get; set; } 
     public string MenuItemName_zh { get; set; } 
     public string url { get; set; } 
     public string LastModifiedDate { get; set; } 
    } 

    public class FeaturedMenuItems 
    { 
     public List<FeaturedMenu> Featured_Menu { get; set; } 
    } 
}

這是JSON我得到：

[ 
    { 
    "Featured_Menu": [ 
     { 
     "MenuItemName": "Today's Racing", 
     "MenuItemName-en": "Today's Racing", 
     "MenuItemName-zh": "今日賽事", 
     "url": "/racing-betting/today", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Tomorrow's Racing", 
     "MenuItemName-en": "Tomorrow's Racing", 
     "MenuItemName-zh": "明日賽事", 
     "url": "/racing-betting/tomorrow", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Upcoming Sports", 
     "MenuItemName-en": "Upcoming Sports", 
     "MenuItemName-zh": "近期賽事", 
     "url": "/sports-betting/next-up", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Live Centre", 
     "MenuItemName-en": "Live Centre", 
     "MenuItemName-zh": "即場投注", 
     "url": "/live-in-play-betting", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Multi Express", 
     "MenuItemName-en": "Multi Express", 
     "MenuItemName-zh": "Multi Express", 
     "url": "/multi-express", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "AFL Finals", 
     "MenuItemName-en": "AFL Finals", 
     "MenuItemName-zh": "AFL Finals", 
     "url": "/sports-betting/australian-rules/afl", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "NRL Finals", 
     "MenuItemName-en": "NRL Finals", 
     "MenuItemName-zh": "NRL Finals", 
     "url": "/sports-betting/rugby-league/nrl/nrl-matches", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "MLB Matches", 
     "MenuItemName-en": "MLB Matches", 
     "MenuItemName-zh": "MLB Matches", 
     "url": "/sports-betting/baseball/major-league-baseball/mlb-matches", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "NFL Matches", 
     "MenuItemName-en": "NFL Matches", 
     "MenuItemName-zh": "NFL Matches", 
     "url": "/sports-betting/american-football/nfl/nfl-matches/", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "EPL Matches", 
     "MenuItemName-en": "EPL Matches", 
     "MenuItemName-zh": "EPL Matches", 
     "url": "/sports-betting/soccer/united-kingdom/english-premier-league-matches", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "UEFA Europa League", 
     "MenuItemName-en": "UEFA Europa League", 
     "MenuItemName-zh": "UEFA Europa League", 
     "url": "/sports-betting/soccer/uefa-competitions/europa-league-matches/", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Golovkin v Alvarez", 
     "MenuItemName-en": "Golovkin v Alvarez", 
     "MenuItemName-zh": "Golovkin v Alvarez", 
     "url": "/sports-betting/boxing/bouts/fights/gennady-golovkin-v-saul-alvarez-20170917-600896-21745986", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Makybe Diva Stakes", 
     "MenuItemName-en": "Makybe Diva Stakes", 
     "MenuItemName-zh": "Makybe Diva Stakes", 
     "url": "/racing-betting/horse-racing/flemington/20170916/race-7-704632-23756853", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "The Shorts", 
     "MenuItemName-en": "The Shorts", 
     "MenuItemName-zh": "The Shorts", 
     "url": "/racing-betting/horse-racing/randwick/20170916/race-7-704601-23756572", 
     "LastModifiedDate": "20170914111417" 
     }, 
     { 
     "MenuItemName": "Lotto", 
     "MenuItemName-en": "Lotto", 
     "MenuItemName-zh": "Lotto", 
     "url": "/http://crownlotto.com.au", 
     "LastModifiedDate": "20170914111417" 
     } 
    ] 
    } 
]

我得到以下異常：

Newtonsoft .Json.JsonSerializationException：'無法反序列化當前的JSON數組（例如[1,2,3]）轉換爲 'WebAutomation.BDD.Data.FeaturedMenuItems'，因爲該類型需要一個 JSON對象（例如{「name」：「value」}）才能正確反序列化。要修復此錯誤要麼將JSON更改爲JSON對象（例如， {「name」：「value」}），要麼將反序列化類型更改爲數組或實現集合接口的類型（例如ICollection，IList）像List，可以從JSON數組中反序列化。也可以將JsonArrayAttribute添加到該類型，以強制它從一個JSON數組中反序列化。路徑''，第1行，位置1'。

我無法弄清楚這個問題。任何幫助將不勝感激。

來源

2017-09-14 Aby

您需要反序列化到一個'列表'中的說明[無法反序列化JSON陣列（例如[1,2,3]）轉換成類型「」，因爲類型需要JSON對象（例如{「name」：「value」}）來正確地反序列化）（https://stackoverflow.com/q/22557559/3744182）。 – dbc

您正試圖反序列化FeaturedMenuItems而不是一個FeaturedMenuItems的數組。嘗試使用：

JsonConvert.DeserializeObject<FeaturedMenuItems[]>(a.Content)

來源

2017-09-14 05:12:09

我得到空作爲輸出。 – Aby

@Aby對不起，它還沒有我的咖啡，修復它，我雖然在數組中的項目是FeaturedMenu他們是FeaturedMenuItems –

C＃中的JSON解析問題＃

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