Невозможно десериализовать экземпляр JsonGen из токена START_ARRAY: newbee

Question

Я очень новичок в разборе JSON с JACKSON, немного о том, чего я пытаюсь достичь - Мне нужно разобрать значения JSON и собрать его для сравнения собранных значений с Live-контентом, который я получаю с использованием селена, я использовал genson для создания классов объектов для json.

JsonGen.java моей программы -

import java.util.List; 

public class JsonGen{ 
    private String _type; 
    private List cast; 
    private List clips; 
    private Common_sense_data common_sense_data; 
    private String common_sense_id; 
    private List crew; 
    private String description; 
    private List episodes; 
    private Number franchise_id; 
    private List genres; 
    private String guid; 
    private Images images; 
    private boolean is_locked; 
    private boolean is_mobile; 
    private boolean is_parental_locked; 
    private String kind; 
    private String mobile_networks; 
    private String most_recent_full_episode_added_date; 
    private String name; 
    private List networks; 
    private String platforms; 
    private List ratings; 
    private String release_date; 
    private List season_filters; 
    private String slug; 
    private String tms_id; 



import java.util.List; 

public class Cast{ 
    private String first_name; 
    private String last_name; 
    private String middle_name; 

    public String getFirst_name(){ 
     return this.first_name; 
    } 
    public void setFirst_name(String first_name){ 
     this.first_name = first_name; 
    } 
    public String getLast_name(){ 
     return this.last_name; 
    } 
    public void setLast_name(String last_name){ 
     this.last_name = last_name; 
    } 
    public String getMiddle_name(){ 
     return this.middle_name; 
    } 
    public void setMiddle_name(String middle_name){ 
     this.middle_name = middle_name; 
    } 
} 




import java.util.List; 

public class Clips{ 
    private String description; 
    private boolean is_locked; 
    private boolean is_parental_locked; 
    private Number run_time; 
    private String slug; 
    private List streams; 
    private String thumbnail_url; 
    private String title; 

    public String getDescription(){ 
     return this.description; 
    } 
    public void setDescription(String description){ 
     this.description = description; 
    } 
    public boolean getIs_locked(){ 
     return this.is_locked; 
    } 
    public void setIs_locked(boolean is_locked){ 
     this.is_locked = is_locked; 
    } 
    public boolean getIs_parental_locked(){ 
     return this.is_parental_locked; 
    } 
    public void setIs_parental_locked(boolean is_parental_locked){ 
     this.is_parental_locked = is_parental_locked; 
    } 
    public Number getRun_time(){ 
     return this.run_time; 
    } 
    public void setRun_time(Number run_time){ 
     this.run_time = run_time; 
    } 
    public String getSlug(){ 
     return this.slug; 
    } 
    public void setSlug(String slug){ 
     this.slug = slug; 
    } 
    public List getStreams(){ 
     return this.streams; 
    } 
    public void setStreams(List streams){ 
     this.streams = streams; 
    } 
    public String getThumbnail_url(){ 
     return this.thumbnail_url; 
    } 
    public void setThumbnail_url(String thumbnail_url){ 
     this.thumbnail_url = thumbnail_url; 
    } 
    public String getTitle(){ 
     return this.title; 
    } 
    public void setTitle(String title){ 
     this.title = title; 
    } 
} 




import java.util.List; 

public class Common_sense_data{ 
    private Slider slider; 

    public Slider getSlider(){ 
     return this.slider; 
    } 
    public void setSlider(Slider slider){ 
     this.slider = slider; 
    } 
} 



import java.util.List; 

public class Crew{ 
    private List members; 
    private String role; 

    public List getMembers(){ 
     return this.members; 
    } 
    public void setMembers(List members){ 
     this.members = members; 
    } 
    public String getRole(){ 
     return this.role; 
    } 
    public void setRole(String role){ 
     this.role = role; 
    } 
} 




import java.util.List; 

public class Episodes{ 
    private String date_dead; 
    private String description; 
    private String episode_id; 
    private String episode_name; 
    private String episode_number; 
    private String franchise_description; 
    private String franchise_id; 
    private String franchise_name; 
    private String franchise_slug; 
    private String guid; 
    private String id_from_partner; 
    private boolean is_locked; 
    private String is_mobile; 
    private boolean is_parental_locked; 
    private boolean is_subscription; 
    private String media_base_url; 
    private String metadata_url; 
    private String mobile_streams; 
    private String network; 
    private String network_analytics; 
    private String network_id; 
    private boolean network_is_dand_enabled; 
    private String network_logo; 
    private String network_name; 
    private String network_slug; 
    private String original_air_date; 
    private String platforms; 
    private String player_type; 
    private String playlist_url; 
    private String poster_url; 
    private String rating; 
    private String run_time; 
    private String season_number; 
    private String season_sort_key; 
    private String slug; 
    private String ssid; 
    private String thumbnail_url; 
    private String tms_id; 
    private String url; 
    private String video_guid; 
    private String video_id; 
    private String wide_poster_url; 

    public String getDate_dead(){ 
     return this.date_dead; 
    } 
    public void setDate_dead(String date_dead){ 
     this.date_dead = date_dead; 
    } 
    public String getDescription(){ 
     return this.description; 
    } 
    public void setDescription(String description){ 
     this.description = description; 
    } 
    public String getEpisode_id(){ 
     return this.episode_id; 
    } 
    public void setEpisode_id(String episode_id){ 
     this.episode_id = episode_id; 
    } 
    public String getEpisode_name(){ 
     return this.episode_name; 
    } 
    public void setEpisode_name(String episode_name){ 
     this.episode_name = episode_name; 
    } 
    public String getEpisode_number(){ 
     return this.episode_number; 
    } 
    public void setEpisode_number(String episode_number){ 
     this.episode_number = episode_number; 
    } 
    public String getFranchise_description(){ 
     return this.franchise_description; 
    } 
    public void setFranchise_description(String franchise_description){ 
     this.franchise_description = franchise_description; 
    } 
    public String getFranchise_id(){ 
     return this.franchise_id; 
    } 
    public void setFranchise_id(String franchise_id){ 
     this.franchise_id = franchise_id; 
    } 
    public String getFranchise_name(){ 
     return this.franchise_name; 
    } 
    public void setFranchise_name(String franchise_name){ 
     this.franchise_name = franchise_name; 
    } 
    public String getFranchise_slug(){ 
     return this.franchise_slug; 
    } 
    public void setFranchise_slug(String franchise_slug){ 
     this.franchise_slug = franchise_slug; 
    } 
    public String getGuid(){ 
     return this.guid; 
    } 
    public void setGuid(String guid){ 
     this.guid = guid; 
    } 
    public String getId_from_partner(){ 
     return this.id_from_partner; 
    } 
    public void setId_from_partner(String id_from_partner){ 
     this.id_from_partner = id_from_partner; 
    } 
    public boolean getIs_locked(){ 
     return this.is_locked; 
    } 
    public void setIs_locked(boolean is_locked){ 
     this.is_locked = is_locked; 
    } 
    public String getIs_mobile(){ 
     return this.is_mobile; 
    } 
    public void setIs_mobile(String is_mobile){ 
     this.is_mobile = is_mobile; 
    } 
    public boolean getIs_parental_locked(){ 
     return this.is_parental_locked; 
    } 
    public void setIs_parental_locked(boolean is_parental_locked){ 
     this.is_parental_locked = is_parental_locked; 
    } 
    public boolean getIs_subscription(){ 
     return this.is_subscription; 
    } 
    public void setIs_subscription(boolean is_subscription){ 
     this.is_subscription = is_subscription; 
    } 
    public String getMedia_base_url(){ 
     return this.media_base_url; 
    } 
    public void setMedia_base_url(String media_base_url){ 
     this.media_base_url = media_base_url; 
    } 
    public String getMetadata_url(){ 
     return this.metadata_url; 
    } 
    public void setMetadata_url(String metadata_url){ 
     this.metadata_url = metadata_url; 
    } 
    public String getMobile_streams(){ 
     return this.mobile_streams; 
    } 
    public void setMobile_streams(String mobile_streams){ 
     this.mobile_streams = mobile_streams; 
    } 
    public String getNetwork(){ 
     return this.network; 
    } 
    public void setNetwork(String network){ 
     this.network = network; 
    } 
    public String getNetwork_analytics(){ 
     return this.network_analytics; 
    } 
    public void setNetwork_analytics(String network_analytics){ 
     this.network_analytics = network_analytics; 
    } 
    public String getNetwork_id(){ 
     return this.network_id; 
    } 
    public void setNetwork_id(String network_id){ 
     this.network_id = network_id; 
    } 
    public boolean getNetwork_is_dand_enabled(){ 
     return this.network_is_dand_enabled; 
    } 
    public void setNetwork_is_dand_enabled(boolean network_is_dand_enabled){ 
     this.network_is_dand_enabled = network_is_dand_enabled; 
    } 
    public String getNetwork_logo(){ 
     return this.network_logo; 
    } 
    public void setNetwork_logo(String network_logo){ 
     this.network_logo = network_logo; 
    } 
    public String getNetwork_name(){ 
     return this.network_name; 
    } 
    public void setNetwork_name(String network_name){ 
     this.network_name = network_name; 
    } 
    public String getNetwork_slug(){ 
     return this.network_slug; 
    } 
    public void setNetwork_slug(String network_slug){ 
     this.network_slug = network_slug; 
    } 
    public String getOriginal_air_date(){ 
     return this.original_air_date; 
    } 
    public void setOriginal_air_date(String original_air_date){ 
     this.original_air_date = original_air_date; 
    } 
    public String getPlatforms(){ 
     return this.platforms; 
    } 
    public void setPlatforms(String platforms){ 
     this.platforms = platforms; 
    } 
    public String getPlayer_type(){ 
     return this.player_type; 
    } 
    public void setPlayer_type(String player_type){ 
     this.player_type = player_type; 
    } 
    public String getPlaylist_url(){ 
     return this.playlist_url; 
    } 
    public void setPlaylist_url(String playlist_url){ 
     this.playlist_url = playlist_url; 
    } 
    public String getPoster_url(){ 
     return this.poster_url; 
    } 
    public void setPoster_url(String poster_url){ 
     this.poster_url = poster_url; 
    } 
    public String getRating(){ 
     return this.rating; 
    } 
    public void setRating(String rating){ 
     this.rating = rating; 
    } 
    public String getRun_time(){ 
     return this.run_time; 
    } 
    public void setRun_time(String run_time){ 
     this.run_time = run_time; 
    } 
    public String getSeason_number(){ 
     return this.season_number; 
    } 
    public void setSeason_number(String season_number){ 
     this.season_number = season_number; 
    } 
    public String getSeason_sort_key(){ 
     return this.season_sort_key; 
    } 
    public void setSeason_sort_key(String season_sort_key){ 
     this.season_sort_key = season_sort_key; 
    } 
    public String getSlug(){ 
     return this.slug; 
    } 
    public void setSlug(String slug){ 
     this.slug = slug; 
    } 
    public String getSsid(){ 
     return this.ssid; 
    } 
    public void setSsid(String ssid){ 
     this.ssid = ssid; 
    } 
    public String getThumbnail_url(){ 
     return this.thumbnail_url; 
    } 
    public void setThumbnail_url(String thumbnail_url){ 
     this.thumbnail_url = thumbnail_url; 
    } 
    public String getTms_id(){ 
     return this.tms_id; 
    } 
    public void setTms_id(String tms_id){ 
     this.tms_id = tms_id; 
    } 
    public String getUrl(){ 
     return this.url; 
    } 
    public void setUrl(String url){ 
     this.url = url; 
    } 
    public String getVideo_guid(){ 
     return this.video_guid; 
    } 
    public void setVideo_guid(String video_guid){ 
     this.video_guid = video_guid; 
    } 
    public String getVideo_id(){ 
     return this.video_id; 
    } 
    public void setVideo_id(String video_id){ 
     this.video_id = video_id; 
    } 
    public String getWide_poster_url(){ 
     return this.wide_poster_url; 
    } 
    public void setWide_poster_url(String wide_poster_url){ 
     this.wide_poster_url = wide_poster_url; 
    } 
} 





import java.util.List; 

public class Genres{ 
    private String name; 
    private String slug; 

    public String getName(){ 
     return this.name; 
    } 
    public void setName(String name){ 
     this.name = name; 
    } 
    public String getSlug(){ 
     return this.slug; 
    } 
    public void setSlug(String slug){ 
     this.slug = slug; 
    } 
} 




import java.util.List; 

public class Images{ 
    private String poster_url; 
    private String thumbnail_url; 
    private String wide_poster_url; 

    public String getPoster_url(){ 
     return this.poster_url; 
    } 
    public void setPoster_url(String poster_url){ 
     this.poster_url = poster_url; 
    } 
    public String getThumbnail_url(){ 
     return this.thumbnail_url; 
    } 
    public void setThumbnail_url(String thumbnail_url){ 
     this.thumbnail_url = thumbnail_url; 
    } 
    public String getWide_poster_url(){ 
     return this.wide_poster_url; 
    } 
    public void setWide_poster_url(String wide_poster_url){ 
     this.wide_poster_url = wide_poster_url; 
    } 
} 




import java.util.List; 

public class Networks{ 
    private String banner; 
    private String description; 
    private boolean is_locked; 
    private String logo; 
    private String name; 
    private String network_analytics; 
    private Number network_id; 
    private String slug; 
    private String thumbnail_url; 
    private String url; 

    public String getBanner(){ 
     return this.banner; 
    } 
    public void setBanner(String banner){ 
     this.banner = banner; 
    } 
    public String getDescription(){ 
     return this.description; 
    } 
    public void setDescription(String description){ 
     this.description = description; 
    } 
    public boolean getIs_locked(){ 
     return this.is_locked; 
    } 
    public void setIs_locked(boolean is_locked){ 
     this.is_locked = is_locked; 
    } 
    public String getLogo(){ 
     return this.logo; 
    } 
    public void setLogo(String logo){ 
     this.logo = logo; 
    } 
    public String getName(){ 
     return this.name; 
    } 
    public void setName(String name){ 
     this.name = name; 
    } 
    public String getNetwork_analytics(){ 
     return this.network_analytics; 
    } 
    public void setNetwork_analytics(String network_analytics){ 
     this.network_analytics = network_analytics; 
    } 
    public Number getNetwork_id(){ 
     return this.network_id; 
    } 
    public void setNetwork_id(Number network_id){ 
     this.network_id = network_id; 
    } 
    public String getSlug(){ 
     return this.slug; 
    } 
    public void setSlug(String slug){ 
     this.slug = slug; 
    } 
    public String getThumbnail_url(){ 
     return this.thumbnail_url; 
    } 
    public void setThumbnail_url(String thumbnail_url){ 
     this.thumbnail_url = thumbnail_url; 
    } 
    public String getUrl(){ 
     return this.url; 
    } 
    public void setUrl(String url){ 
     this.url = url; 
    } 
} 



import java.util.List; 

public class Ratings{ 
    private String description; 
    private String rating; 
    private String rating_body; 

    public String getDescription(){ 
     return this.description; 
    } 
    public void setDescription(String description){ 
     this.description = description; 
    } 
    public String getRating(){ 
     return this.rating; 
    } 
    public void setRating(String rating){ 
     this.rating = rating; 
    } 
    public String getRating_body(){ 
     return this.rating_body; 
    } 
    public void setRating_body(String rating_body){ 
     this.rating_body = rating_body; 
    } 
} 



import java.util.List; 

public class Season_filters{ 
    private Number episode_count; 
    private String name; 
    private String slug; 

    public Number getEpisode_count(){ 
     return this.episode_count; 
    } 
    public void setEpisode_count(Number episode_count){ 
     this.episode_count = episode_count; 
    } 
    public String getName(){ 
     return this.name; 
    } 
    public void setName(String name){ 
     this.name = name; 
    } 
    public String getSlug(){ 
     return this.slug; 
    } 
    public void setSlug(String slug){ 
     this.slug = slug; 
    } 
} 


import java.util.List; 

public class Slider{ 
    private Number not_for_kids; 
    private Number off_age; 
    private Number on_age; 
    private String status; 
    private Number target_age; 
    private String text; 

    public Number getNot_for_kids(){ 
     return this.not_for_kids; 
    } 
    public void setNot_for_kids(Number not_for_kids){ 
     this.not_for_kids = not_for_kids; 
    } 
    public Number getOff_age(){ 
     return this.off_age; 
    } 
    public void setOff_age(Number off_age){ 
     this.off_age = off_age; 
    } 
    public Number getOn_age(){ 
     return this.on_age; 
    } 
    public void setOn_age(Number on_age){ 
     this.on_age = on_age; 
    } 
    public String getStatus(){ 
     return this.status; 
    } 
    public void setStatus(String status){ 
     this.status = status; 
    } 
    public Number getTarget_age(){ 
     return this.target_age; 
    } 
    public void setTarget_age(Number target_age){ 
     this.target_age = target_age; 
    } 
    public String getText(){ 
     return this.text; 
    } 
    public void setText(String text){ 
     this.text = text; 
    } 
} 

import java.util.List; 

public class Streams{ 
    private String date_dead; 
    private String franchise_name; 
    private String id_from_partner; 
    private boolean is_locked; 
    private boolean is_parental_locked; 
    private boolean is_subscription; 
    private String media_base_url; 
    private Number mediaview_partner_id; 
    private Number mediaview_provider_id; 
    private String metadata_url; 
    private String network; 
    private String network_analytics; 
    private String network_id; 
    private boolean network_is_dand_enabled; 
    private String network_name; 
    private String network_slug; 
    private String player_type; 
    private String playlist_url; 
    private String rating; 
    private Number run_time; 
    private Number selection_score; 
    private String ssid; 
    private String thumbnail_url; 
    private String uma_supported; 
    private String url; 
    private String video_guid; 
    private String video_id; 

    public String getDate_dead(){ 
     return this.date_dead; 
    } 
    public void setDate_dead(String date_dead){ 
     this.date_dead = date_dead; 
    } 
    public String getFranchise_name(){ 
     return this.franchise_name; 
    } 
    public void setFranchise_name(String franchise_name){ 
     this.franchise_name = franchise_name; 
    } 
    public String getId_from_partner(){ 
     return this.id_from_partner; 
    } 
    public void setId_from_partner(String id_from_partner){ 
     this.id_from_partner = id_from_partner; 
    } 
    public boolean getIs_locked(){ 
     return this.is_locked; 
    } 
    public void setIs_locked(boolean is_locked){ 
     this.is_locked = is_locked; 
    } 
    public boolean getIs_parental_locked(){ 
     return this.is_parental_locked; 
    } 
    public void setIs_parental_locked(boolean is_parental_locked){ 
     this.is_parental_locked = is_parental_locked; 
    } 
    public boolean getIs_subscription(){ 
     return this.is_subscription; 
    } 
    public void setIs_subscription(boolean is_subscription){ 
     this.is_subscription = is_subscription; 
    } 
    public String getMedia_base_url(){ 
     return this.media_base_url; 
    } 
    public void setMedia_base_url(String media_base_url){ 
     this.media_base_url = media_base_url; 
    } 
    public Number getMediaview_partner_id(){ 
     return this.mediaview_partner_id; 
    } 
    public void setMediaview_partner_id(Number mediaview_partner_id){ 
     this.mediaview_partner_id = mediaview_partner_id; 
    } 
    public Number getMediaview_provider_id(){ 
     return this.mediaview_provider_id; 
    } 
    public void setMediaview_provider_id(Number mediaview_provider_id){ 
     this.mediaview_provider_id = mediaview_provider_id; 
    } 
    public String getMetadata_url(){ 
     return this.metadata_url; 
    } 
    public void setMetadata_url(String metadata_url){ 
     this.metadata_url = metadata_url; 
    } 
    public String getNetwork(){ 
     return this.network; 
    } 
    public void setNetwork(String network){ 
     this.network = network; 
    } 
    public String getNetwork_analytics(){ 
     return this.network_analytics; 
    } 
    public void setNetwork_analytics(String network_analytics){ 
     this.network_analytics = network_analytics; 
    } 
    public String getNetwork_id(){ 
     return this.network_id; 
    } 
    public void setNetwork_id(String network_id){ 
     this.network_id = network_id; 
    } 
    public boolean getNetwork_is_dand_enabled(){ 
     return this.network_is_dand_enabled; 
    } 
    public void setNetwork_is_dand_enabled(boolean network_is_dand_enabled){ 
     this.network_is_dand_enabled = network_is_dand_enabled; 
    } 
    public String getNetwork_name(){ 
     return this.network_name; 
    } 
    public void setNetwork_name(String network_name){ 
     this.network_name = network_name; 
    } 
    public String getNetwork_slug(){ 
     return this.network_slug; 
    } 
    public void setNetwork_slug(String network_slug){ 
     this.network_slug = network_slug; 
    } 
    public String getPlayer_type(){ 
     return this.player_type; 
    } 
    public void setPlayer_type(String player_type){ 
     this.player_type = player_type; 
    } 
    public String getPlaylist_url(){ 
     return this.playlist_url; 
    } 
    public void setPlaylist_url(String playlist_url){ 
     this.playlist_url = playlist_url; 
    } 
    public String getRating(){ 
     return this.rating; 
    } 
    public void setRating(String rating){ 
     this.rating = rating; 
    } 
    public Number getRun_time(){ 
     return this.run_time; 
    } 
    public void setRun_time(Number run_time){ 
     this.run_time = run_time; 
    } 
    public Number getSelection_score(){ 
     return this.selection_score; 
    } 
    public void setSelection_score(Number selection_score){ 
     this.selection_score = selection_score; 
    } 
    public String getSsid(){ 
     return this.ssid; 
    } 
    public void setSsid(String ssid){ 
     this.ssid = ssid; 
    } 
    public String getThumbnail_url(){ 
     return this.thumbnail_url; 
    } 
    public void setThumbnail_url(String thumbnail_url){ 
     this.thumbnail_url = thumbnail_url; 
    } 
    public String getUma_supported(){ 
     return this.uma_supported; 
    } 
    public void setUma_supported(String uma_supported){ 
     this.uma_supported = uma_supported; 
    } 
    public String getUrl(){ 
     return this.url; 
    } 
    public void setUrl(String url){ 
     this.url = url; 
    } 
    public String getVideo_guid(){ 
     return this.video_guid; 
    } 
    public void setVideo_guid(String video_guid){ 
     this.video_guid = video_guid; 
    } 
    public String getVideo_id(){ 
     return this.video_id; 
    } 
    public void setVideo_id(String video_id){ 
     this.video_id = video_id; 
    } 
} 


and following is the driver I am using to get the name of the shows- 

import java.io.IOException; 
import java.net.MalformedURLException; 
import java.net.URL; 

import com.fasterxml.jackson.*; 
import com.fasterxml.jackson.core.JsonParseException; 
import com.fasterxml.jackson.databind.JsonMappingException; 
import com.fasterxml.jackson.databind.ObjectMapper; 


public class BossMan { 

    public static void main(String[] args) throws JsonParseException, JsonMappingException, IOException { 

     URL jsonUrl = new URL("http://www.dishanywhere.com/radish/v20/dol/shows/carousels/featured.json"); 
     ObjectMapper objmapper = new ObjectMapper(); 
     JsonGen jsongen = null; 
     jsongen = objmapper.readValue(jsonUrl, JsonGen.class); 
     System.out.println(jsongen.getName()); 

    } 

} 

, но я столкнулся следующая ошибка -

Exception in thread "main" com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of JsonGen out of START_ARRAY token 
    at [Source: http://www.dishanywhere.com/radish/v20/dol/shows/carousels/featured.json; line: 1, column: 1] 


I need the result in a array but code is failing above exception. 
Thanks in advance. 

Answer 1

Вы не показали нам класс JsonGen. Если json-файл, который вы хотите десериализовать, представляет собой массив объектов типа JsonGen, тогда вам нужно сделать это:

List<JsonGen> jsongen = objmapper.readValue(jsonUrl, new TypeReference<List<JsonGen>>() {}); 

for(JsonGen element : jsongen) { 
     System.out.println(element.getName()) 
} 

Answer 2

Если данные вы получаете от сервера является массивом, вам нужно передать список. класс как второй аргумент readValue():

List<JsonGen> values = objmapper.readValue(jsonUril, List.class);