unity C#：在网络上的 json 文件中查找内容

Question

我只想在通过API 获得的相当长的 JSON 文件中找到某个属性。只想获取电影网址

{
  "data" :{
      "movies": [
           {
           "url" : [ENTER URL HERE]
           }
       ]  
    }
}

只想获取该 URL 并以编程方式将其放入变量中，以便在浏览器中打开并可能显示在应用程序中

获取代码并使 json 对人类可读的脚本：

using System.Collections;
using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.Serialization;
using UnityEngine.XR.WSA.Sharing;
using System.Runtime.Serialization.Formatters.Binary; 
using System.IO;


public class GETFromYTS : MonoBehaviour
{
    [FormerlySerializedAs("URL")] public string url;

    void Start()
    {
        // A correct website page.
        StartCoroutine(GetRequest(url));
       //Application.OpenURL(url);

    }



    IEnumerator GetRequest(string uri)
    {
        using (UnityWebRequest webRequest = UnityWebRequest.Get(uri))
        {
            // Request and wait for the desired page.
            yield return webRequest.SendWebRequest();

            string[] pages = uri.Split('/');
            int page = pages.Length - 1;

            if (webRequest.isNetworkError)
            {
                Debug.Log(pages[page] + ": Error: " + webRequest.error);
            }
            else
            {

                string json = JsonConvert.DeserializeObject(webRequest.downloadHandler.text).ToString();
                Debug.Log(json);


            }    
        }
    }
}

使用 Jetbrains Rider 作为 IDE

完整的 json 以获得额外信息：

{
    "status": "ok",
    "status_message": "Query was successful",
    "data": {
        "movie_count": 1,
        "limit": 1,
        "page_number": 1,
        "movies": [
            {
                "id": 15813,
                "url": "https:\/\/yts.mx\/movie\/sonic-the-hedgehog-2020",
                "imdb_code": "tt3794354",
                "title": "Sonic the Hedgehog",
                "title_english": "Sonic the Hedgehog",
                "title_long": "Sonic the Hedgehog (2020)",
                "slug": "sonic- the-hedgehog-2020",
                "year": 2020,   
                "rating": 6.6,
                "runtime": 99,
                "genres": [
                    "Action",
                    "Adventure",
                    "Comedy",
                    "Family",
                    "Sci-Fi"
                ],
                "summary": "Based on the global blockbuster videogame franchise from Sega, SONIC THE HEDGEHOG tells the story of the world's speediest hedgehog as he embraces his new home on Earth. In this live-action adventure comedy, Sonic and his new best friend Tom (James Marsden) team up to defend the planet from the evil genius Dr. Robotnik (Jim Carrey) and his plans for world domination. The family-friendly film also stars Tika Sumpter and Ben Schwartz as the voice of Sonic.",
                "description_full": "Based on the global blockbuster videogame franchise from Sega, SONIC THE HEDGEHOG tells the story of the world's speediest hedgehog as he embraces his new home on Earth. In this live-action adventure comedy, Sonic and his new best friend Tom (James Marsden) team up to defend the planet from the evil genius Dr. Robotnik (Jim Carrey) and his plans for world domination. The family-friendly film also stars Tika Sumpter and Ben Schwartz as the voice of Sonic.",
                "synopsis": "Based on the global blockbuster videogame franchise from Sega, SONIC THE HEDGEHOG tells the story of the world's speediest hedgehog as he embraces his new home on Earth. In this live-action adventure comedy, Sonic and his new best friend Tom (James Marsden) team up to defend the planet from the evil genius Dr. Robotnik (Jim Carrey) and his plans for world domination. The family-friendly film also stars Tika Sumpter and Ben Schwartz as the voice of Sonic.",
                "yt_trailer_code": "szby7ZHLnkA",
                "language": "English",
                "mpa_rating": "PG",
                "background_image": "https:\/\/yts.mx\/assets\/images\/movies\/sonic_the_hedgehog_2020\/background.jpg",
                "background_image_original": "https:\/\/yts.mx\/assets\/images\/movies\/sonic_the_hedgehog_2020\/background.jpg",
                "small_cover_image": "https:\/\/yts.mx\/assets\/images\/movies\/sonic_the_hedgehog_2020\/small-cover.jpg",
                "medium_cover_image": "https:\/\/yts.mx\/assets\/images\/movies\/sonic_the_hedgehog_2020\/medium-cover.jpg",
                "large_cover_image": "https:\/\/yts.mx\/assets\/images\/movies\/sonic_the_hedgehog_2020\/large-cover.jpg",
                "state": "ok",
                "torrents": [
                    {
                        "url": "https:\/\/yts.mx\/torrent\/download\/77EFB6CF3336FCB8FC3FC67A222F548FF88BF00C",
                        "hash": "77EFB6CF3336FCB8FC3FC67A222F548FF88BF00C",
                        "quality": "720p",
                        "type": "web",
                        "seeds": 4441,
                        "peers": 736,
                        "size": "911.23 MB",
                        "size_bytes": 955493908,
                        "date_uploaded": "2020-03-08 19:31:51",
                        "date_uploaded_unix": 1583692311
                    },
                    {
                        "url": "https:\/\/yts.mx\/torrent\/download\/F3ACFD3979CC1A30CC7F312673CED688CE78CE77",
                        "hash": "F3ACFD3979CC1A30CC7F312673CED688CE78CE77",
                        "quality": "1080p",
                        "type": "web",
                        "seeds": 6737,
                        "peers": 1071,
                        "size": "1.65 GB",
                        "size_bytes": 1771674010,
                        "date_uploaded": "2020-03-08 21:15:14",
                        "date_uploaded_unix": 1583698514
                    }
                ],
                "date_uploaded": "2020-03-08 19:31:51",
                "date_uploaded_unix": 1583692311
            }
        ]
    },
    "@meta": {
        "server_time": 1586605584,
        "server_timezone": "CET",
        "api_version": 2,
        "execution_time": "0 ms"
    }
}

Answer 1

为什么不使用 Unity 的内置 JsonUtility 静态类？只需用一个类声明数据的形状并用它转换 JSON。

[Serializable]
public class Movie 
{
   public string url;
   public string title;
   public string title_english;

   // Include every needed field
}

[Serializable]
public class Data
{
    public Movie[] movies;
}

[Serializable]
public class Response
{
    public Data data;
}

// ... everywhere you need 

Response res = JsonUtility.FromJson<Response>(json);

for (int i = 0; i < res.data.movies.Length; i++)
{
   Debug.Log(res.data.movies[i].url);
}