objet JSON Stockage en utilisant Volley

Question

Voici la structure du JSON que je dois charger,

{ 
    "readme_0" : "THIS JSON IS THE RESULT OF YOUR SEARCH QUERY - THERE IS NO WEB PAGE WHICH SHOWS THE RESULT!", 
    "readme_1" : "loklak.org is the framework for a message search system, not the portal, read: http://loklak.org/about.html#notasearchportal", 
    "readme_2" : "This is supposed to be the back-end of a search portal. For the api, see http://loklak.org/api.html", 
    "readme_3" : "Parameters q=(query), source=(cache|backend|twitter|all), callback=p for jsonp, maximumRecords=(message count), minified=(true|false)", 
    "search_metadata" : { 
    "itemsPerPage" : "100", 
    "count" : "100", 
    "count_twitter_all" : 0, 
    "count_twitter_new" : 100, 
    "count_backend" : 0, 
    "count_cache" : 78780, 
    "hits" : 78780, 
    "period" : 3066, 
    "query" : "apple", 
    "client" : "180.215.121.78", 
    "time" : 5219, 
    "servicereduction" : "false", 
    "scraperInfo" : "http://45.55.245.191:9000,local" 
    }, 
    "statuses" : [ { 
    "created_at" : "2016-01-09T12:11:38.000Z", 
    "screen_name" : "arifazmi92", 
    "text" : "Perhaps I shouldn't have eaten that pisang goreng cheese perisa green apple. <img class=\"Emoji Emoji--forText\" src=\"https://abs.twimg.com/emoji/v2/72x72/1f605.png\" draggable=\"false\" alt=\"\" title=\"Smiling face with open mouth and cold sweat\" aria-label=\"Emoji: Smiling face with open mouth and cold sweat\"><img class=\"Emoji Emoji--forText\" src=\"https://abs.twimg.com/emoji/v2/72x72/1f605.png\" draggable=\"false\" alt=\"\" title=\"Smiling face with open mouth and cold sweat\" aria-label=\"Emoji: Smiling face with open mouth and cold sweat\"><img class=\"Emoji Emoji--forText\" src=\"https://abs.twimg.com/emoji/v2/72x72/1f605.png\" draggable=\"false\" alt=\"\" title=\"Smiling face with open mouth and cold sweat\" aria-label=\"Emoji: Smiling face with open mouth and cold sweat\">", 
    "link" : "https://twitter.com/arifazmi92/status/685796067082813440", 
    "id_str" : "685796067082813440", 
    "source_type" : "TWITTER", 
    "provider_type" : "SCRAPED", 
    "retweet_count" : 0, 
    "favourites_count" : 0, 
    "images" : [ ], 
    "images_count" : 0, 
    "audio" : [ ], 
    "audio_count" : 0, 
    "videos" : [ ], 
    "videos_count" : 0, 
    "place_name" : "Bandar Shah Alam, Selangor", 
    "place_id" : "9be3b0eca6c21f6c", 
    "place_context" : "FROM", 
    "place_country" : "Malaysia", 
    "place_country_code" : "MY", 
    "place_country_center" : [ -59.30559537806809, 3.4418498787292435 ], 
    "location_point" : [ 101.53280621465888, 3.0850698533863863 ], 
    "location_radius" : 0, 
    "location_mark" : [ 101.52542227271437, 3.0911033774188725 ], 
    "location_source" : "PLACE", 
    "hosts" : [ "abs.twimg.com" ], 
    "hosts_count" : 1, 
    "links" : [ "https://abs.twimg.com/emoji/v2/72x72/1f605.png\"", "https://abs.twimg.com/emoji/v2/72x72/1f605.png\"", "https://abs.twimg.com/emoji/v2/72x72/1f605.png\"" ], 
    "links_count" : 3, 
    "mentions" : [ ], 
    "mentions_count" : 0, 
    "hashtags" : [ ], 
    "hashtags_count" : 0, 
    "without_l_len" : 626, 
    "without_lu_len" : 626, 
    "without_luh_len" : 626, 
    "user" : { 
     "screen_name" : "arifazmi92", 
     "user_id" : "44503967", 
     "name" : "Arif Azmi", 
     "profile_image_url_https" : "https://pbs.twimg.com/profile_images/685788990004301824/NbFnnLuO_bigger.jpg", 
     "appearance_first" : "2016-01-09T12:11:57.933Z", 
     "appearance_latest" : "2016-01-09T12:11:57.933Z" 
    } 
    } 
    } ], 
    "aggregations" : { } 
} 

Et ce sont mes classes POJO que j'ai produit:

MainPojo.class

public class MainPojo 
{ 
    @SerializedName("readme_0") 
    @Expose 
    private String readme0; 
    @SerializedName("readme_1") 
    @Expose 
    private String readme1; 
    @SerializedName("readme_2") 
    @Expose 
    private String readme2; 
    @SerializedName("readme_3") 
    @Expose 
    private String readme3; 
    @SerializedName("search_metadata") 
    @Expose 
    private SearchMetadata searchMetadata; 
    @SerializedName("statuses") 
    @Expose 
    private List<Status> statuses = new ArrayList<Status>(); 
    @SerializedName("aggregations") 
    @Expose 
    private Aggregations aggregations; 


    public String getReadme0() { 
     return readme0; 
    } 

    public void setReadme0(String readme0) { 
     this.readme0 = readme0; 
    } 


    public String getReadme1() { 
     return readme1; 
    } 


    public void setReadme1(String readme1) { 
     this.readme1 = readme1; 
    } 


    public String getReadme2() { 
     return readme2; 
    } 

    public void setReadme2(String readme2) { 
     this.readme2 = readme2; 
    } 


    public String getReadme3() { 
     return readme3; 
    } 


    public void setReadme3(String readme3) { 
     this.readme3 = readme3; 
    } 

    public SearchMetadata getSearchMetadata() { 
     return searchMetadata; 
    } 


    public void setSearchMetadata(SearchMetadata searchMetadata) { 
     this.searchMetadata = searchMetadata; 
    } 


    public List<Status> getStatuses() { 
     return statuses; 
    } 


    public void setStatuses(List<Status> statuses) { 
     this.statuses = statuses; 
    } 


    public Aggregations getAggregations() { 
     return aggregations; 
    } 


    public void setAggregations(Aggregations aggregations) { 
     this.aggregations = aggregations; 
    } 

} 

Status.class

public class Status 
{ 

    @SerializedName("created_at") 
    @Expose 
    private String createdAt; 
    @SerializedName("screen_name") 
    @Expose 
    private String screenName; 
    @SerializedName("text") 
    @Expose 
    private String text; 
    @SerializedName("link") 
    @Expose 
    private String link; 
    @SerializedName("id_str") 
    @Expose 
    private String idStr; 
    @SerializedName("source_type") 
    @Expose 
    private String sourceType; 
    @SerializedName("provider_type") 
    @Expose 
    private String providerType; 
    @SerializedName("retweet_count") 
    @Expose 
    private Integer retweetCount; 
    @SerializedName("favourites_count") 
    @Expose 
    private Integer favouritesCount; 
    @SerializedName("images") 
    @Expose 
    private List<Object> images = new ArrayList<Object>(); 
    @SerializedName("images_count") 
    @Expose 
    private Integer imagesCount; 
    @SerializedName("audio") 
    @Expose 
    private List<Object> audio = new ArrayList<Object>(); 
    @SerializedName("audio_count") 
    @Expose 
    private Integer audioCount; 
    @SerializedName("videos") 
    @Expose 
    private List<Object> videos = new ArrayList<Object>(); 
    @SerializedName("videos_count") 
    @Expose 
    private Integer videosCount; 
    @SerializedName("place_name") 
    @Expose 
    private String placeName; 
    @SerializedName("place_id") 
    @Expose 
    private String placeId; 
    @SerializedName("place_context") 
    @Expose 
    private String placeContext; 
    @SerializedName("location_point") 
    @Expose 
    private List<Double> locationPoint = new ArrayList<Double>(); 
    @SerializedName("location_radius") 
    @Expose 
    private Integer locationRadius; 
    @SerializedName("location_mark") 
    @Expose 
    private List<Double> locationMark = new ArrayList<Double>(); 
    @SerializedName("location_source") 
    @Expose 
    private String locationSource; 
    @SerializedName("hosts") 
    @Expose 
    private List<String> hosts = new ArrayList<String>(); 
    @SerializedName("hosts_count") 
    @Expose 
    private Integer hostsCount; 
    @SerializedName("links") 
    @Expose 
    private List<String> links = new ArrayList<String>(); 
    @SerializedName("links_count") 
    @Expose 
    private Integer linksCount; 
    @SerializedName("mentions") 
    @Expose 
    private List<Object> mentions = new ArrayList<Object>(); 
    @SerializedName("mentions_count") 
    @Expose 
    private Integer mentionsCount; 
    @SerializedName("hashtags") 
    @Expose 
    private List<Object> hashtags = new ArrayList<Object>(); 
    @SerializedName("hashtags_count") 
    @Expose 
    private Integer hashtagsCount; 
    @SerializedName("without_l_len") 
    @Expose 
    private Integer withoutLLen; 
    @SerializedName("without_lu_len") 
    @Expose 
    private Integer withoutLuLen; 
    @SerializedName("without_luh_len") 
    @Expose 
    private Integer withoutLuhLen; 
    @SerializedName("user") 
    @Expose 
    private User user; 
    @SerializedName("provider_hash") 
    @Expose 
    private String providerHash; 
    @SerializedName("classifier_language") 
    @Expose 
    private String classifierLanguage; 
    @SerializedName("classifier_language_probability") 
    @Expose 
    private Double classifierLanguageProbability; 


    public String getCreatedAt() { 
     return createdAt; 
    } 


    public void setCreatedAt(String createdAt) { 
     this.createdAt = createdAt; 
    } 


    public String getScreenName() { 
     return screenName; 
    } 


    public void setScreenName(String screenName) { 
     this.screenName = screenName; 
    } 


    public String getText() { 
     return text; 
    } 


    public void setText(String text) { 
     this.text = text; 
    } 


    public String getLink() { 
     return link; 
    } 


    public void setLink(String link) { 
     this.link = link; 
    } 


    public String getIdStr() { 
     return idStr; 
    } 


    public void setIdStr(String idStr) { 
     this.idStr = idStr; 
    } 


    public String getSourceType() { 
     return sourceType; 
    } 


    public void setSourceType(String sourceType) { 
     this.sourceType = sourceType; 
    } 


    public String getProviderType() { 
     return providerType; 
    } 


    public void setProviderType(String providerType) { 
     this.providerType = providerType; 
    } 


    public Integer getRetweetCount() { 
     return retweetCount; 
    } 


    public void setRetweetCount(Integer retweetCount) { 
     this.retweetCount = retweetCount; 
    } 


    public Integer getFavouritesCount() { 
     return favouritesCount; 
    } 


    public void setFavouritesCount(Integer favouritesCount) { 
     this.favouritesCount = favouritesCount; 
    } 

    public List<Object> getImages() { 
     return images; 
    } 

    public void setImages(List<Object> images) { 
     this.images = images; 
    } 

    public Integer getImagesCount() { 
     return imagesCount; 
    } 


    public void setImagesCount(Integer imagesCount) { 
     this.imagesCount = imagesCount; 
    } 


    public List<Object> getAudio() { 
     return audio; 
    } 


    public void setAudio(List<Object> audio) { 
     this.audio = audio; 
    } 


    public Integer getAudioCount() { 
     return audioCount; 
    } 


    public void setAudioCount(Integer audioCount) { 
     this.audioCount = audioCount; 
    } 


    public List<Object> getVideos() { 
     return videos; 
    } 


    public void setVideos(List<Object> videos) { 
     this.videos = videos; 
    } 


    public Integer getVideosCount() { 
     return videosCount; 
    } 


    public void setVideosCount(Integer videosCount) { 
     this.videosCount = videosCount; 
    } 


    public String getPlaceName() { 
     return placeName; 
    } 

    public void setPlaceName(String placeName) { 
     this.placeName = placeName; 
    } 


    public String getPlaceId() { 
     return placeId; 
    } 


    public void setPlaceId(String placeId) { 
     this.placeId = placeId; 
    } 


    public String getPlaceContext() { 
     return placeContext; 
    } 


    public void setPlaceContext(String placeContext) { 
     this.placeContext = placeContext; 
    } 


    public List<Double> getLocationPoint() { 
     return locationPoint; 
    } 


    public void setLocationPoint(List<Double> locationPoint) { 
     this.locationPoint = locationPoint; 
    } 


    public Integer getLocationRadius() { 
     return locationRadius; 
    } 


    public void setLocationRadius(Integer locationRadius) { 
     this.locationRadius = locationRadius; 
    } 


    public List<Double> getLocationMark() { 
     return locationMark; 
    } 


    public void setLocationMark(List<Double> locationMark) { 
     this.locationMark = locationMark; 
    } 


    public String getLocationSource() { 
     return locationSource; 
    } 


    public void setLocationSource(String locationSource) { 
     this.locationSource = locationSource; 
    } 

    public List<String> getHosts() { 
     return hosts; 
    } 


    public void setHosts(List<String> hosts) { 
     this.hosts = hosts; 
    } 

    public Integer getHostsCount() { 
     return hostsCount; 
    } 


    public void setHostsCount(Integer hostsCount) { 
     this.hostsCount = hostsCount; 
    } 


    public List<String> getLinks() { 
     return links; 
    } 

    public void setLinks(List<String> links) { 
     this.links = links; 
    } 


    public Integer getLinksCount() { 
     return linksCount; 
    } 


    public void setLinksCount(Integer linksCount) { 
     this.linksCount = linksCount; 
    } 


    public List<Object> getMentions() { 
     return mentions; 
    } 


    public void setMentions(List<Object> mentions) { 
     this.mentions = mentions; 
    } 


    public Integer getMentionsCount() { 
     return mentionsCount; 
    } 


    public void setMentionsCount(Integer mentionsCount) { 
     this.mentionsCount = mentionsCount; 
    } 


    public List<Object> getHashtags() { 
     return hashtags; 
    } 

    public void setHashtags(List<Object> hashtags) { 
     this.hashtags = hashtags; 
    } 


    public Integer getHashtagsCount() { 
     return hashtagsCount; 
    } 


    public void setHashtagsCount(Integer hashtagsCount) { 
     this.hashtagsCount = hashtagsCount; 
    } 


    public Integer getWithoutLLen() { 
     return withoutLLen; 
    } 


    public void setWithoutLLen(Integer withoutLLen) { 
     this.withoutLLen = withoutLLen; 
    } 


    public Integer getWithoutLuLen() { 
     return withoutLuLen; 
    } 


    public void setWithoutLuLen(Integer withoutLuLen) { 
     this.withoutLuLen = withoutLuLen; 
    } 


    public Integer getWithoutLuhLen() { 
     return withoutLuhLen; 
    } 

    public void setWithoutLuhLen(Integer withoutLuhLen) { 
     this.withoutLuhLen = withoutLuhLen; 
    } 


    public User getUser() { 
     return user; 
    } 


    public void setUser(User user) { 
     this.user = user; 
    } 


    public String getProviderHash() { 
     return providerHash; 
    } 


    public void setProviderHash(String providerHash) { 
     this.providerHash = providerHash; 
    } 


    public String getClassifierLanguage() { 
     return classifierLanguage; 
    } 


    public void setClassifierLanguage(String classifierLanguage) { 
     this.classifierLanguage = classifierLanguage; 
    } 


    public Double getClassifierLanguageProbability() { 
     return classifierLanguageProbability; 
    } 


    public void setClassifierLanguageProbability(Double classifierLanguageProbability) { 
     this.classifierLanguageProbability = classifierLanguageProbability; 
    } 

} 

User.java

public class User { 

    @SerializedName("screen_name") 
    @Expose 
    private String screenName; 
    @SerializedName("user_id") 
    @Expose 
    private String userId; 
    @SerializedName("name") 
    @Expose 
    private String name; 
    @SerializedName("profile_image_url_https") 
    @Expose 
    private String profileImageUrlHttps; 
    @SerializedName("appearance_first") 
    @Expose 
    private String appearanceFirst; 
    @SerializedName("appearance_latest") 
    @Expose 
    private String appearanceLatest; 

    public String getScreenName() { 
     return screenName; 
    } 


    public void setScreenName(String screenName) { 
     this.screenName = screenName; 
    } 


    public String getUserId() { 
     return userId; 
    } 


    public void setUserId(String userId) { 
     this.userId = userId; 
    } 


    public String getName() { 
     return name; 
    } 


    public void setName(String name) { 
     this.name = name; 
    } 


    public String getProfileImageUrlHttps() { 
     return profileImageUrlHttps; 
    } 


    public void setProfileImageUrlHttps(String profileImageUrlHttps) { 
     this.profileImageUrlHttps = profileImageUrlHttps; 
    } 


    public String getAppearanceFirst() { 
     return appearanceFirst; 
    } 


    public void setAppearanceFirst(String appearanceFirst) { 
     this.appearanceFirst = appearanceFirst; 
    } 


    public String getAppearanceLatest() { 
     return appearanceLatest; 
    } 


    public void setAppearanceLatest(String appearanceLatest) { 
     this.appearanceLatest = appearanceLatest; 
    } 
} 

Aggregations.class

public class Aggregations { 
} 

Et enfin, voici le code que j'utilise pour lire le JSON et stocker sous forme d'objets JSON,

SharedPreferences Tempx = getSharedPreferences("ActivitySession", Context.MODE_PRIVATE); 
        SharedPreferences.Editor edx = Tempx.edit(); 
        edx.putString("GSON_FEED", response.toString()); 
        edx.apply(); 

        Gson gson = new Gson(); 
        JsonParser parser = new JsonParser(); 



        try{ 
         JsonArray jArray = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonArray(); 
         for(JsonElement obj : jArray) 
         { 
          MainPojo cse = gson.fromJson(obj , MainPojo.class); 
          TweetList.add(cse); 
         } 
        }catch(Throwable e) { 

         JsonElement obj = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonObject(); 
         MainPojo cse = gson.fromJson(obj , MainPojo.class); 
         TweetList.add(cse); 

        } 

Bien que je puisse enregistrer le JSON en tant que chaîne, Je ne sais pas si je le stocke dans le mauvais sens, toute aide sera très appréciée, Merci!

Answer 1

Vous pouvez définir un désérialiseur personnalisé et enregistrer un adaptateur de type avec GSON. Aussi pourquoi utilisez-vous ceci:

JsonArray jArray = parser.parse(Tempx.getString("GSON_FEED","")).getAsJsonArray(); 

.. quand vous avez l'intention d'utiliser GSON pour désérialisation? Vous pourriez le faire dans votre désérialiseur.

https://sites.google.com/site/gson/gson-user-guide#TOC-Custom-Serialization-and-Deserialization

EG:

public class FooDeserializer implements JsonDeserializer<Foos> 
{ 
    @Override public Foos deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException 
    { 
     JsonObject jsonObject = json.getAsJsonObject(); 
     JsonArray statusArray = jsonObject.get("statuses").getAsJsonArray(); 
     Foos result = new Foos(); 
     ArrayList fooArray = new ArrayList<>; 
     for (JsonElement e : statusArray) { 
      fooArray.add(new Foo()); 
     } 
     result.setFoos(fooArray); 
     return result; 
    } 
}