Question

我正在尝试将包含Json（pinterest）的字符串转换为c＃对象。我正在使用Json .NET，无论我尝试什么，data.pins.images内部文本总是转换为null。它显然不是空的。

c＃类是由在线转换器创建的。实际的Json''pins'数组包含50个元素。为了简化问题，我除去了其中一个以外的所有内容。

下面列出了Json文本和测试程序。请帮忙。

using System.IO;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
//using System.Runtime.Serialization.Json;

namespace PinterestConsoleTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string jsonString = 
            "{"+
                "\"status\": \"success\","+
                "\"code\": 0,"+
                "\"host\": \"ngapi2-67c11435\","+
                "\"generated_at\": \"Sun, 07 Dec 2014 12:15:10 +0000\","+
                "\"message\": \"ok\","+
                "\"data\": "+
                "{"+
                    "\"pins\": "+
                    "["+
                        "{"+
                            "\"attribution\": null,"+
                            "\"description\": \"Roasted Potato Salad with Pancetta, Sun-Dried Tomatoes and Arugula\","+
                            "\"pinner\": "+
                            "{"+
                                "\"about\": \"\","+
                                "\"location\": \"\","+
                                "\"full_name\": \"Anselma Berumen\","+
                                "\"follower_count\": 15,"+
                                "\"image_small_url\": \"http://passets-ak.pinterest.com/images/user/default_30.png\","+
                                "\"pin_count\": 1683,"+
                                "\"id\": \"460422899312895060\","+
                                "\"profile_url\": \"http://www.pinterest.com/chemita1331/\""+
                            "},"+
                            "\"repin_count\": 0,"+
                            "\"dominant_color\": \"#b7947a\","+
                            "\"like_count\": 0,"+
                            "\"link\": \"http://www.domesticate-me.com/roasted-potato-salad-with-pancetta-sun-dried-tomatoes-and-arugula/\","+
                            "\"images\": "+
                            "{"+
                                "\"image\": "+
                                "{"+
                                    "\"url\": \"http://media-cache-ec0.pinimg.com/237x/a0/97/9e/a0979eb898eee640eb980181035e75bc.jpg\","+
                                    "\"width\": 237,"+
                                    "\"height\": 334"+
                                "}" +
                            "},"+
                            "\"embed\": null,"+
                            "\"is_video\": false,"+
                            "\"id\": \"460422761878479851\""+
                        "}"+
                    "],"+
                    "\"user\": "+
                    "{"+
                        "\"about\": \"\","+
                        "\"location\": \"\","+
                        "\"full_name\": \"Anselma Berumen\","+
                        "\"follower_count\": 15,"+
                        "\"image_small_url\": \"http://passets-ak.pinterest.com/images/user/default_30.png\","+
                        "\"pin_count\": 1683,"+
                        "\"id\": \"460422899312895060\","+
                        "\"profile_url\": \"http://www.pinterest.com/chemita1331/\""+
                    "},"+
                    "\"board\": "+
                    "{"+
                        "\"description\": \"\","+
                        "\"url\": \"/chemita1331/salads/\","+
                        "\"follower_count\": 4,"+
                        "\"image_thumbnail_url\": \"http://media-cache-ak0.pinimg.com/upload/460422830593447062_board_thumbnail_2014-09-18-00-49-37_15359_60.jpg\","+
                        "\"pin_count\": 237,"+
                        "\"id\": \"460422830593447062\","+
                        "\"name\": \"Salads\""+
                    "}"+
                "}"+
            "}";

            JsonPinterestTester jsonPinterestTester = new JsonPinterestTester();

            PinsOfBoardRequest pinsOfBoardRequest = jsonPinterestTester.Parse(jsonString);

            PinsOfBoardRequestImages images =   pinsOfBoardRequest.data.pins[0].images;

            Image237x image = pinsOfBoardRequest.data.pins[0].images.image237x;

            Console.ReadKey();
        }
    }

    class JsonPinterestTester
    {
        public PinsOfBoardRequest Parse(string jsonSource)
        {
            PinsOfBoardRequest request = 
                Newtonsoft.Json.JsonConvert.DeserializeObject<PinsOfBoardRequest>(jsonSource);
            return request;
        }
    }

    public class Image237x
    {
        public string url { get; set; }
        public int width { get; set; }
        public int height { get; set; }
    }

    public class PinsOfBoardRequestImages
    {
        public Image237x image237x { get; set; }
    }

    public class PinsOfBoardRequestPinner
    {
        public string about { get; set; }
        public string location { get; set; }
        public string full_name { get; set; }
        public int follower_count { get; set; }
        public string image_small_url { get; set; }
        public int pin_count { get; set; }
        public string id { get; set; }
        public string profile_url { get; set; }
    }

    public class PinsOfBoardRequestUser
    {
        public string about { get; set; }
        public string location { get; set; }
        public string full_name { get; set; }
        public int follower_count { get; set; }
        public string image_small_url { get; set; }
        public int pin_count { get; set; }
        public string id { get; set; }
        public string profile_url { get; set; }
    }

    public class PinsOfBoardRequestBoard
    {
        public string description { get; set; }
        public string url { get; set; }
        public int follower_count { get; set; }
        public string image_thumbnail_url { get; set; }
        public int pin_count { get; set; }
        public string id { get; set; }
        public string name { get; set; }
    }

    public class PinsOfBoardRequestPin
    {
        public object attribution { get; set; }
        public string description { get; set; }
        public PinsOfBoardRequestPinner pinner { get; set; }
        public int repin_count { get; set; }
        public string dominant_color { get; set; }
        public int like_count { get; set; }
        public string link { get; set; }
        public PinsOfBoardRequestImages images { get; set; }
        public object embed { get; set; }
        public bool is_video { get; set; }
        public string id { get; set; }
    }

    public class PinsOfBoardRequestData
    {
        //public IList<PinsOfBoardRequestPin> pins { get; set; }
        public PinsOfBoardRequestPin[] pins { get; set; }
        public PinsOfBoardRequestUser user { get; set; }
        public PinsOfBoardRequestBoard board { get; set; }
    }

    public class PinsOfBoardRequest
    {
        public string status { get; set; }
        public int code { get; set; }
        public string host { get; set; }
        public string generated_at { get; set; }
        public string message { get; set; }
        public PinsOfBoardRequestData data { get; set; }
    }
}

Answer 1

当然，Image237x类的PinsOfBoardRequestImages属性应命名为image

public class PinsOfBoardRequestImages
{
    public Image237x image { get; set; }
}

另外，如果名称images可能会推断出一个数组，请仔细检查您的样本是否与实际输入匹配

真的是：

images: { image: { ..

或者是：

images:  [{ image: {.. , image { ...] ?

在这种情况下，DTO将是一个数组：

    public Image237x[] image { get; set; }

将json转换为C＃对象时，inner类为null

1 个答案: