我是JSON的新手，所以我对此有疑问。
我想在JSONObject信息中获取图像JSON对象。 但是最好的方法是什么？
当我收到JSON请求后，我得到了这个：
{
"status" : "done",
"info" : {
"rating" : {
"imdb" : [5.7000000000000002, 129331]
},
"genres" : ["Action", "Crime", "Thriller"],
"tmdb_id" : 584,
"plot" : "It's a major double-cross when former police officer Brian O'Conner teams up with his ex-con buddy Roman Pearce to transport a shipment of \"dirty\" money for shady Miami-based import-export dealer Carter Verone. But the guys are actually working with undercover agent Monica Fuentes to bring Verone down.",
"tagline" : "How Fast Do You Want It?",
"original_title" : "2 Fast 2 Furious",
"actor_roles" : {
"Mark Boone Junior" : "Detective Whitworth",
"Amaury Nolasco" : "Orange Julius",
"Edward Finlay" : "Agent Dunn",
"Cole Hauser" : "Carter Verone",
"Ludacris" : "Tej",
"Devon Aoki" : "Suki",
"James Remar" : "Agent Markham",
"Jin Auyeung" : "Jimmy",
"Eric Etebari" : "Darden",
"Paul Walker" : "Brian O'Conner",
"Mo Gallini" : "Enrique",
"Eva Mendes" : "Monica Fuentes",
"Tyrese Gibson" : "Roman Pearce",
"Thom Barry" : "Agent Bilkins",
"Michael Ealy" : "Slap Jack"
},
"collection" : "The Fast and the Furious Collection",
"via_imdb" : true,
"mpaa" : "PG-13",
"via_tmdb" : true,
"directors" : ["John Singleton"],
"titles" : ["2 Fast 2 Furious", "The Fast and the Furious 2", "M\u00e1s r\u00e1pido, m\u00e1s furioso", "\u73a9\u547d\u95dc\u982d2 \u98c6\u98a8\u518d\u8d77", "Fast and the Furious Vol2", "The Fast and the Furious 2 - 2 Fast 2 Furious", "+ Veloses + Furiosos", "Rapide et dangereux 2", "Fast & Furious 2", "Fast and Furious 2", "\ubd84\ub178\uc758 \uc9c8\uc8fc 2"],
"imdb" : "tt0322259",
"year" : 2003,
"images" : {
"disc_art" : ["http://assets.fanart.tv/fanart/movies/584/moviedisc/2-fast-2-furious-520e18cde06ab.png"],
"poster" : ["https://image.tmdb.org/t/p/w154/3CrNPUulPGbsJIH2ZnLYomGIVrk.jpg", "http://ia.media-imdb.com/images/M/MV5BMTIyMDUwMDc4OF5BMl5BanBnXkFtZTYwNTY2Nzk5._V1_.jpg", "http://ia.media-imdb.com/images/M/MV5BMTIyMDUwMDc4OF5BMl5BanBnXkFtZTYwNTY2Nzk5._V1_SX300.jpg"],
"extra_thumbs" : ["https://image.tmdb.org/t/p/original/xvNOnVYmtkevs1kby3X1rQXb2iU.jpg", "https://image.tmdb.org/t/p/original/911LypVOfeIYCVmpFWJW0NpjIXG.jpg", "https://image.tmdb.org/t/p/original/7Zc0ubgNke1pGKyQjews7yMD0Jb.jpg", "https://image.tmdb.org/t/p/original/yIg8L8J7UFfKGCtoWDH7QTevs6C.jpg"],
"poster_original" : ["https://image.tmdb.org/t/p/original/3CrNPUulPGbsJIH2ZnLYomGIVrk.jpg"],
"landscape" : ["http://assets.fanart.tv/fanart/movies/584/moviethumb/2-fast-2-furious-51ab110bb72f4.jpg"],
"actors" : {
"Mark Boone Junior" : "https://image.tmdb.org/t/p/w185/nNVvaTLa8A5uwLXQvCsKoX4npwo.jpg",
"Amaury Nolasco" : "https://image.tmdb.org/t/p/w185/tFH2iQmCIARuPJwjqcw7STwLeEr.jpg",
"Edward Finlay" : "https://image.tmdb.org/t/p/w185/cHgCOdSLSvjYiKwhycwCH5X4Viu.jpg",
"Cole Hauser" : "https://image.tmdb.org/t/p/w185/2izzcOrZpt22ObHjSNq3qRhrGHu.jpg",
"Ludacris" : "https://image.tmdb.org/t/p/w185/xLfq9wFO6dtYuUK96hbJ8I8EKFw.jpg",
"Jin Auyeung" : "https://image.tmdb.org/t/p/w185/kQIGxSJSAcc3zK37zRCGuhxdNmL.jpg",
"James Remar" : "https://image.tmdb.org/t/p/w185/AeSuQlBclvWqztlpkf9nIhvvhsc.jpg",
"Devon Aoki" : "https://image.tmdb.org/t/p/w185/mytZpvb5lykocoOCDelFy8Eqezm.jpg",
"Eric Etebari" : "https://image.tmdb.org/t/p/w185/bNjZk4EPaItye1szWPkse08TSJZ.jpg",
"Paul Walker" : "https://image.tmdb.org/t/p/w185/iqvYezRoEY5k8wnlfHriHQfl5dX.jpg",
"Mo Gallini" : "https://image.tmdb.org/t/p/w185/fkc5N30a7ZvZkCJEnnqh24uQwDN.jpg",
"Eva Mendes" : "https://image.tmdb.org/t/p/w185/6JoVMpn0CcZwb6JK7XW2E6ntU52.jpg",
"Tyrese Gibson" : "https://image.tmdb.org/t/p/w185/8AaJIsIb7yJcfwcgbD7qsT6ameq.jpg",
"Thom Barry" : "https://image.tmdb.org/t/p/w185/AhUa78UoZ5oGk5kWiatnDaPxSnO.jpg",
"Michael Ealy" : "https://image.tmdb.org/t/p/w185/oqzMgyxyZUjE8kTpjHhQ6YlMPov.jpg"
},
"backdrop_original" : ["http://assets.fanart.tv/fanart/movies/584/moviebackground/2-fast-2-furious-50472dee97d56.jpg", "https://image.tmdb.org/t/p/original/8RkLHFm2PK4PO5W0WZA5LMXLZBz.jpg"],
"clear_art" : ["http://assets.fanart.tv/fanart/movies/584/movieart/2-fast-2-furious-505432e6599e6.png"],
"logo" : ["http://assets.fanart.tv/fanart/movies/584/movielogo/2-fast-2-furious-4fb3fa6854a36.png"],
"banner" : ["http://assets.fanart.tv/fanart/movies/584/moviebanner/2-fast-2-furious-51ab1119963b1.jpg"],
"backdrop" : ["https://image.tmdb.org/t/p/w1280/8RkLHFm2PK4PO5W0WZA5LMXLZBz.jpg"],
"extra_fanart" : ["http://assets.fanart.tv/fanart/movies/584/moviebackground/2-fast-2-furious-50472e91d86ce.jpg", "http://assets.fanart.tv/fanart/movies/584/moviebackground/2-fast-2-furious-504ea84f0d19d.jpg", "http://assets.fanart.tv/fanart/movies/584/moviebackground/2-fast-2-furious-504ea84f0db42.jpg", "http://assets.fanart.tv/fanart/movies/584/moviebackground/2-fast-2-furious-5057078be2e3f.jpg"]
},
"actors" : ["Paul Walker", "Tyrese Gibson", "Eva Mendes", "Cole Hauser"],
"writers" : ["Gary Scott Thompson (characters)", "Michael Brandt (story)", "Derek Haas (story)", "Gary Scott Thompson (story)", "Michael Brandt (screenplay)", "Derek Haas (screenplay)"],
"runtime" : 107,
"type" : "movie",
"released" : "2003-06-02"
},
"_t" : "media",
"releases" : [{
"status" : "done",
"files" : {
"movie" : ["/volume1/video/2 Fast 2 Furious (2003).mkv"]
},
"_id" : "fbb7d7f6fb71458886edd115d58c3b96",
"media_id" : "e9376ee00c85449ba776be784da40552",
"_rev" : "000254f4",
"_t" : "release",
"is_3d" : false,
"last_edit" : 1404427546,
"identifier" : "tt0322259.AAC.dvdrip",
"quality" : "dvdrip"
}
],
"title" : "2 Fast 2 Furious",
"_rev" : "00045be8",
"profile_id" : null,
"_id" : "e9376ee00c85449ba776be784da40552",
"category_id" : null,
"type" : "movie",
"files" : {
"image_poster" : ["/usr/local/couchpotato/var/cache/47c2f59d078bc8179ee52dd882a352ca.jpg"]
},
"identifiers" : {
"imdb" : "tt0322259"
}
}
到目前为止，我所做的是：
String json = download(url);
try {
JSONObject result = new JSONObject(json);
JSONArray results = result.getJSONArray("movies");
for(int i = 0; i < results.length(); i++)
{
JSONObject movieObject = results.getJSONObject(i);
CouchPotatoMovie movie = new CouchPotatoMovie(movieObject);
movies.add(movie);
}
因此图像应该在CouchPotatoMovie对象中。 但我不知道如何让他们离开那里。
答案 0 :(得分：0)
从JSON字符串创建 JSONObject ：
JSONObject jsonObject = new JSONObject(jsonString);
并使用getJSONObject()方法：
JSONObject imagesJsonObject = jsonObject.getJSONObject("info").getJSONObject("images");
然后，您可以使用keys()获取密钥，并使用getJSONArray()和getString()方法获取图片网址。
示例：
从poster获取网址：
JSONArray posterJsonArray = imagesJsonObject.getJSONArray("poster");
List<String> urls = new ArrayList<String>();
for (int i = 0; i < posterJsonArray.length(); i++) {
String url = posterJsonArray.getString(i);
urls.add(url);
}